In general relativity, if you get at some point: 1-mg/r, in the center of blackhole r = 0 so 1-mg/0 = infinity. But doesn't this apply in the center of a planet or star?
@Jipzorowns YES. But in order to apply the Schwarzschild metric the planet/star must not be charged and/or rotating. Otherwise we must use the Kerr–Newman metric.
:O so in theory when you change one of the constants.. there is a dramatic change... in theory.. which is in your head... mindblowing... relativity is irrelevant cause everything is constant.
I'm disappointed that no one suggested changing the speed of light. Personally I'd increase it by at least 3 orders of magnitude, and perhaps maybe then interstellar travel within reasonable time frames might become a bit more realistic.
@Ichibaz Uh, I'm pretty sure that nowhere in the video did it say that they couldn't chose the speed of light. If the opposite is true then please point out where.
if light travel in curve at high gravitational field then is there any great interaction of gravitational field and photon?what particles of gravity cause so...or vice versa?
@legendpawan At the scale used in GR we speak of a continuous stream of photons (viz., `light`), NOT a single photon. The latter implies QM, and there isn`t yet any proven physical theory that unifies GR with QM.
@LeconsdAnalyse I understand that we do not have a demonstrable theory of quantum gravity. Yet Special Relativity is profoundly linked with QM now, right?
@LeconsdAnalyse Yes. So in GR light is treated classically? Classically as in given the postulates of Special-Rel & the Equivalence principle, but without the discrete units of electromagnetism or of energy levels. So gravity is predicted to travel at c, but in the GR framework we can only speak of gravity WAVES, not particles/"wavicles" etc. Why is gravity unrenormalisable (ina few words lol)?
@MrIamSamIam2 I just meant photons, really, that GR treats both gravity & light as waves. But while understand that it can't be remormalised, I wondered why this is. Unfair question.
I find the speed of light quite amazing. Even space and time adjust themselves so that Distance/Time = Speed of Light when measuring the speed of light (approximately 300000km/s).
The speed of light (c) could not be a constant at all. I think CERN proved that you can break the speed of light. And I'm curious of why is the case. I'm sure that most of the Standard Theory is right, but some parts are really wrong, and some are missing altogether!
@ADizezedCrow Light does go slower in denser mediums for the simple reason that a denser medium is...denser, haha. The slowing down process happens so quickly, it's easier to just say light travels at different velocities in different mediums, a vaccuum being the fastest medium to travel in (that we know of)
@ADizezedCrow Technically, no. The go at the exact same speed but you can read that light speed is slower in a medium rather than in vacuum. That's because the photons, light beams, gets absorbed by the electrons in lets say the atoms the air is made of and then released a fraction of a second later, making it look like it has slowed down since we measure the speed with time and not accounting for stops.
@ADizezedCrow Light doesn't slow down. If you think of a photon of light travelling through a dense medium, for example, diamond, light still travels at its normal speed. However, since there are carbon atoms in the photon's way, the photon interacts with the C atoms and its energy is absorbed and re-emitted as another photon. You could say that the path the light follows is a sort of wild 'zig-zag'. The overall time taken for light to travel through the entire diamond is more than in a vacuum
@UniverseIsAwesome the light can slwo down lol...energy is affected by gravity just like mass as they are the same thing so of there is a scource of great gravity,not necceserily a black hole who's powers doesn't just slow the light down but can completely change it's way and absorbing it,like a big star with great mass=greta gravity can slow down the light by a force opposite to light's direction
@CFVEful Gravity doesn't DIRECTLY affect light. However, gravitational fields, especially strong ones formed by huge stars and black holes, change the shape of space-time according to Einstein's Theory of General Relativity. The photons of light are merely responding to this curvature in space-time. Photons do not have mass and therefore cannot directly be affected by gravity. This link imagine.gsfc.nasa.gov/docs/ask_astro/answers/961102.html explains this is more detail (The Answer paragraph 5)
@CFVEful Also, gravity is not a force. It's merely the bending/curving of the space-time fabric. Particles moving along the space-time fabric will respond to any distortions in the fabric. For example, an object is stationary in space (therefore according to relativity, time in the object would be moving at full speed). Suddenly, the space-time around it is curved by a gravitational field. The object will then start to move according to Newton's 1st Law of Motion. Gravity is NOT a force though
@SinisterDexter1 It could have been any other value than 6,67*10^-11, but, it isn't changing in the Universe. We should be quite happy that it have that value. Slightly bigger compared to the other possible strenths of forces and intelligent life would be impossible anywhere and anytime.
@pwed546: Renormization's what many still can't do because they're stuck in their provincialisms like the pope's stuck in his jesus-fixation (regarding the actual situation it's not uncommon that such old men are attracted to young men as well as to their mothers of whom they have to neglect that they spread their legs at least twice so that a child came out).
I think talking about changing the constants is a little misleading. They make it sound like we could turn a dial and change how it works but the numbers are simple how it works represented in base ten math.
If energy is attracted to mass... what happens when you consciously realize that mass is only created by the conscious mind... so we're studying things we have manifest... so we're god... and when we manifest enough.. we make black holes... that then erase everything we created anyway.....
Change Hubbles Constant so the Age of the univserse changes and The density of the universe changes! Oh wait....it already changes - it's not constant at all....
i was watching something about the speed of light not actually being a constant because of the theory of the universe's expansion slowing down and thus all energy inside the universe slowing as well. I guess if that is true then there would be no such thing as a "constant"
2) Ah, I see the gentleman at 6:20 preceded my question! The word 'constant' is obviously too presumptive and so should be renamed 'current regularity' or something similar.
@AlohaBay We went through the math, I'm sure we didn't go through it to final year undergraduate level, but I do remember exams with things like light cones Minkowski space and inertial reference frames. Come to think about it, it was probably only special relativity, since we didn't do any partial differential equations if I remember correctly. Our final year physics was getting ridiculous though with superfluous content that we were going to do in university anyway.
The time has come for Free energy to be revealed ,But the big oil corporations don't want that technology revealed,Get a motor that works with the power of magnets only at LT-MAGNET-MOTORdotCOM ,Join the energy revolution!
@sixtysymbols So then time travel could theoreticaly be possible if you could move something CLOSE to the speed of light, right? Since the light is arcing it would take longer to get from point A to point B. If the time traveling object moves in a strait line from point A to point B...
OMG! I asked this question! Thank you Brady, for this and every other one of your fabulous videos. You are easily my favourite channel on YouTube. Never stop!
If the Earth is Spinning around itself and around the sun, and the sun is going aroung the center of the galxy, and our galaxy is going around a central galaxy (not very sure about it) isn't it possible that I am now traveling in the speed of light?
In essence, what relativity says is that space and time are not absolute but both are relative to the observer and the thing being observed, and the faster one moves the more pronounced these effects become. For example, Cosmonaut Sergei Avdeyev travelled 0.02sec into the future when he was onboard the Mir space station.Because, he circled the earth 11,968 times over the course of 748 day at 17,000 mph.
I liked that he touched on the fact that the constants may not have always been constant. I think this idea of a slowly changing Newton constant or Planck constant helps explain how the universe is formed.The theory of Relativity lends to the idea that gravity affects time so our understanding of the age of the earth in relation to the age of the universe could be way off. Also the rate at which the earth vibrates and in fact our bodies vibrate has slowly been increasing, an indication perhaps?
Man. Whenever I see a new sixtysymbols video, it will totally make my day. And this is definately, my favourite video yet. Especially, because I'm totally in love with researching about Einstein's Theory of General and Special Relativity. :)
E=mc2 applies not just to nuclear reactions but chemical reactions. When you burn hydrocarbon fuel in your car with oxygen, the resulting mass of the CO2 and H2O (at the same temperature) differs by less than one part per billion. The tiny fraction of mass gets converted to energy.
Relativity applies to other daily processes as well but a physicist would be better suited to explain them.
A movie that revolves around the changing of the the value of charge of an electron is called "The Quiet Earth" not all that scientific but a good watch all the same, and an interesting flashback to 1980's New Zealand. Pirate bay it. You couldn't buy it if you tried.
Finally a highly scientific video. not just descriptions of stuff but a very analytical and scientific video. this style is the best and i think should be the basis for all your videos
Thank you so much for making some of the most difficult things to understand, so easy! From Chile, the country of the surviving miners I salute you Brady, you're the man!!!!
@yoelrenzo Thank you from Prof Roger Bowley ---I know about Chile for my wife comes from Valparaiso. (Es cierto yo soy porteña.) I salute her, she's the woman.
How much rock blasted off from the Earth by large meteor impacts leaves our solar system? How likely is such a rock to be captured by neighbouring solar systems and land on a planet there?
Nobody wanted to change the speed of light? Correct me if I'm wrong, but if we made c slower, we could observe all of the weird time and length dilation effects in our everyday lives. That would be really interesting imo.
NO NO NO! Don't say the universe is fine-tuned! Creationists love it when real scientists say that! The "common sense" argument is: It's fine-tuned, therefore, there is a fine-tuner.
@IRisingFuryI It really doesn't matter whether there was a fine-tuner or not. If it's outside of the scope of the natural world, it's outside of the scope of science.
I have been watching your videos ever since the channel started and frankly i have learnt more than anyone at school could teach me from the books there. An Arabian saying is "Whoever taught me a letter, I would be their slave". Thank you for you have taught me much more than a letter.
6:14 - anyone who's ever sat in a waiting room, or had to sit through a boring lecture knows that some of the constants change... especially any to do with the passing of time ;-)
@robertwc82: Not these theories. It has more to do with Einstein's theory about the photoelectric effect. When light passes through a medium, photons are absorbed and re-emitted, thus slowing them down.
BTW, the speed of light is also constant in a non vacuum - it's just lower than it is in a vacuum.
@puncheex so what your saying, is it does not actually slow down in the traditional sense? im not sure i understand. when they say constant, do they mean reletive to the medium it passes through? it will only travel at 1 speed through water and another through air?
@robertwc82: Yes, light does slow down in the traditional sense when flowing through a uniform medium. It slows down something like 1% through clear air, and 25% through water, 60% through diamond. The velocity difference defines what is called the index of refraction of the material, and accounts for magnification through a lense.
@puncheex i see. and you are saying the speed is constant, relative to the medium it passes through. water always travels through water at a constant speed?
@robertwc82: Yes. According to Einstein's SR, the speed of light in any medium is constant. Understand that light photons within a crystal still travel at the full speed of light in a vacuum; it is just that they are periodically captured by electrons and re-emitted after a time delay. That is what slows them down.
@puncheex thats what i meant by "slow down in the tradtional sense". really it does not slow down in the sense that the photons change speed. decelerate. they just take longer to reach your eye?
@bozy99 so explain why i can spin a bucket of water around my head, without getting wet... When you're in a lift which is going up, it takes time for your body to accelerate to the same speed as the lift and that's what we perceive as an increased feeling of gravity.
@pikuorguk: First of all, velocity is a vector with both speed and direction. Acceleration is a change in either speed or direction. Spinning a bucket of water has a constant speed around a circle, but the direction is changing constantly, so the water is always accelerating when traveling in an arc. So, if you spin the bucket so that the acceleration is greater than 1 g, then there is always a net acceleration of the water toward the bottom of the bucket greater than 0, even when upside down.
@bozy99: What they are saying is that there is no difference between the feeling that gravity is attracting you and the feeling of being constantly accelerated away from gravity.
In a lift on Earth, you are attracted to the floor when the elevator is at rest or at constant speed. When the elevator accelerates you feel increased weight; when it decelerates, you feel less weight.
Found your channel.... about 2 weeks ago and i am loving it so far. your interviewed persons are extreamly intelligent, something your dont get to see online tht often, as well they seem to have a good sense of humour as well... so far i love the video of the solar eclipse, and the god question. as well your LHC video was humourous as no one fully knows what can happen there but the theories are amazing...
Brady, you should win a nobel prize for propagating science to the mass population like this. You have NO idea how happy I get when I see an update from one of your channels in my subscription box.
@sixtysymbols regarding Brady getting a nobel prize, i don't know if that would be fitting, but it would be interresting. I would however be happy to see him recieve some sort of prize or honor, f.ex. for work related to innovation in public understanding of science.
I don't know if you need it, or it would be any help, but i think it could be interresting if Brady were given a grant or funding to expand periodic videos, sixty symbols, and nothingham science (possibly with dedicated staff?).
Having thought about it for a long time, i suspect that Einstein spent a lot of his (pre-relativity) time thinking about Maxwell`s equations.
LeconsdAnalyse 6 days ago
Comment removed
LeconsdAnalyse 1 week ago
In general relativity, if you get at some point: 1-mg/r, in the center of blackhole r = 0 so 1-mg/0 = infinity. But doesn't this apply in the center of a planet or star?
Jipzorowns 1 week ago
@Jipzorowns No, because a planet/star has non-zero size. This means that at the centre, the outer parts of the body are also pulling you outwards.
moltencheese123 3 days ago
@moltencheese123 NO. The mass (planet, star, etc.) in the Schwarzschild metric is at the origin of the r,ϑ,φ system.
LeconsdAnalyse 3 days ago
@Jipzorowns YES. But in order to apply the Schwarzschild metric the planet/star must not be charged and/or rotating. Otherwise we must use the Kerr–Newman metric.
LeconsdAnalyse 3 days ago
Do not divide with 0 !
MrSuperZangief 1 month ago
:O so in theory when you change one of the constants.. there is a dramatic change... in theory.. which is in your head... mindblowing... relativity is irrelevant cause everything is constant.
Drougar108 1 month ago
9^999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
bluewisdomtriforce 1 month ago
@bluewisdomtriforce is a really big number
bluewisdomtriforce 1 month ago
People have an eye on the planks constant i see., you can prove Einstein wrong.. But you cannot play with planck's constant...
MaxPlank91 1 month ago
I'm disappointed that no one suggested changing the speed of light. Personally I'd increase it by at least 3 orders of magnitude, and perhaps maybe then interstellar travel within reasonable time frames might become a bit more realistic.
ChrisGJ700 1 month ago
@ChrisGJ700 That wasn't an option. They couldn't have chosen that!
Ichibaz 2 weeks ago
@Ichibaz Uh, I'm pretty sure that nowhere in the video did it say that they couldn't chose the speed of light. If the opposite is true then please point out where.
ChrisGJ700 2 weeks ago
@ChrisGJ700 sorry, I'm the one who's wrong... oh well;)
Ichibaz 2 weeks ago
@Ichibaz Pobody's nerfect.
ChrisGJ700 2 weeks ago
Comment removed
LeconsdAnalyse 1 month ago
Comment removed
LeconsdAnalyse 1 month ago
I would change Pi to 3, to make maths easier.
starofcctv94 1 month ago
I would change c to like 2000 ms-1
amirgodofwar 1 month ago
Facepalm when I see Atlas of Creation at 0:22! Written by a scam artist.
ertyxtras 1 month ago
if light travel in curve at high gravitational field then is there any great interaction of gravitational field and photon?what particles of gravity cause so...or vice versa?
legendpawan 1 month ago
@legendpawan At the scale used in GR we speak of a continuous stream of photons (viz., `light`), NOT a single photon. The latter implies QM, and there isn`t yet any proven physical theory that unifies GR with QM.
LeconsdAnalyse 1 month ago
@LeconsdAnalyse I understand that we do not have a demonstrable theory of quantum gravity. Yet Special Relativity is profoundly linked with QM now, right?
MrIamSamIam2 1 month ago
@MrIamSamIam2 Hello.
Yes. QMs is compatible with special relativity (but not with general relativity). Quantum Field Theory has Special Relativity built into it. :)
LeconsdAnalyse 1 month ago
@LeconsdAnalyse Yes. So in GR light is treated classically? Classically as in given the postulates of Special-Rel & the Equivalence principle, but without the discrete units of electromagnetism or of energy levels. So gravity is predicted to travel at c, but in the GR framework we can only speak of gravity WAVES, not particles/"wavicles" etc. Why is gravity unrenormalisable (ina few words lol)?
MrIamSamIam2 1 month ago
@MrIamSamIam2 What do you mean by, "..`discrete` units of electromagnetism.." ?
Renormalization is a very technical subject that cannot be summed up in a sentence. Too difficult to accomodate all `energy scales`.
LeconsdAnalyse 1 month ago
@MrIamSamIam2 I just meant photons, really, that GR treats both gravity & light as waves. But while understand that it can't be remormalised, I wondered why this is. Unfair question.
MrIamSamIam2 1 month ago
I wonder if gravity affects temperature...
Baboonaiih 1 month ago
@Baboonaiih Ask the accretion disk of a supermassive black hole!.
MrIamSamIam2 1 month ago
can someone please link me to the all the other viewer question videos? I'm trying to find them all but i'm having a difficult time = /
ilikechess1 2 months ago
Who is Meghan Gray?
Glympse2k7 2 months ago
it's just that my english arent good enough do describe what i want to say as i wish
CFVEful 2 months ago
I find the speed of light quite amazing. Even space and time adjust themselves so that Distance/Time = Speed of Light when measuring the speed of light (approximately 300000km/s).
UniverseIsAwesome 2 months ago
The speed of light (c) could not be a constant at all. I think CERN proved that you can break the speed of light. And I'm curious of why is the case. I'm sure that most of the Standard Theory is right, but some parts are really wrong, and some are missing altogether!
danielbluesmoke 4 months ago
i'd increase the speed of light, it'd allow better observation of galaxies etc and raise the maximum speed for future space travel.
lukacarroll 4 months ago
can light slow down? and why?
ADizezedCrow 5 months ago in playlist Sixty Symbols - Questions
@ADizezedCrow Light can slow down if it travels through an optically denser medium.
Aviatorsmith 5 months ago
@ADizezedCrow Light does go slower in denser mediums for the simple reason that a denser medium is...denser, haha. The slowing down process happens so quickly, it's easier to just say light travels at different velocities in different mediums, a vaccuum being the fastest medium to travel in (that we know of)
Greenehh 4 months ago
@ADizezedCrow Technically, no. The go at the exact same speed but you can read that light speed is slower in a medium rather than in vacuum. That's because the photons, light beams, gets absorbed by the electrons in lets say the atoms the air is made of and then released a fraction of a second later, making it look like it has slowed down since we measure the speed with time and not accounting for stops.
TheSteady0 4 months ago 3
@ADizezedCrow Light doesn't slow down. If you think of a photon of light travelling through a dense medium, for example, diamond, light still travels at its normal speed. However, since there are carbon atoms in the photon's way, the photon interacts with the C atoms and its energy is absorbed and re-emitted as another photon. You could say that the path the light follows is a sort of wild 'zig-zag'. The overall time taken for light to travel through the entire diamond is more than in a vacuum
UniverseIsAwesome 2 months ago
@UniverseIsAwesome the light can slwo down lol...energy is affected by gravity just like mass as they are the same thing so of there is a scource of great gravity,not necceserily a black hole who's powers doesn't just slow the light down but can completely change it's way and absorbing it,like a big star with great mass=greta gravity can slow down the light by a force opposite to light's direction
CFVEful 2 months ago
@CFVEful Gravity doesn't DIRECTLY affect light. However, gravitational fields, especially strong ones formed by huge stars and black holes, change the shape of space-time according to Einstein's Theory of General Relativity. The photons of light are merely responding to this curvature in space-time. Photons do not have mass and therefore cannot directly be affected by gravity. This link imagine.gsfc.nasa.gov/docs/ask_astro/answers/961102.html explains this is more detail (The Answer paragraph 5)
UniverseIsAwesome 2 months ago
@CFVEful Also, gravity is not a force. It's merely the bending/curving of the space-time fabric. Particles moving along the space-time fabric will respond to any distortions in the fabric. For example, an object is stationary in space (therefore according to relativity, time in the object would be moving at full speed). Suddenly, the space-time around it is curved by a gravitational field. The object will then start to move according to Newton's 1st Law of Motion. Gravity is NOT a force though
UniverseIsAwesome 2 months ago
@UniverseIsAwesome i didnt say that gravity is a force
CFVEful 2 months ago
5:50- epic troll lol
56Database 5 months ago
I believe Big G (Newtons constant) is infact variable....
SinisterDexter1 5 months ago
@SinisterDexter1 It could have been any other value than 6,67*10^-11, but, it isn't changing in the Universe. We should be quite happy that it have that value. Slightly bigger compared to the other possible strenths of forces and intelligent life would be impossible anywhere and anytime.
TheisticThinker 3 months ago
Pause at 00:00, who's your daddy now?
Rockyroopam 6 months ago
Wemon... Typical.
olivebates 6 months ago
I would make the cosmological constant 0, it's what Eintein would have wanted
pwed546 7 months ago
@pwed546: Renormization's what many still can't do because they're stuck in their provincialisms like the pope's stuck in his jesus-fixation (regarding the actual situation it's not uncommon that such old men are attracted to young men as well as to their mothers of whom they have to neglect that they spread their legs at least twice so that a child came out).
vertexgo 7 months ago
Changing the ratio of any constant would likely affect others. Like she said, I like things the way the are! :p
perrin275 8 months ago
Comment removed
LeconsdAnalyse 9 months ago
What about changing the value of Pi from Pi = C/d to Pi = C/r ?
This way, one rotation around a circle would be Pi as opposed to 2 Pi, and would make a lot of math much easier
ThisMansOpinion 10 months ago
I think talking about changing the constants is a little misleading. They make it sound like we could turn a dial and change how it works but the numbers are simple how it works represented in base ten math.
ataraxic89 10 months ago
2 people tried to change a constant.
togo002 10 months ago
If energy is attracted to mass... what happens when you consciously realize that mass is only created by the conscious mind... so we're studying things we have manifest... so we're god... and when we manifest enough.. we make black holes... that then erase everything we created anyway.....
sugarcane2013 11 months ago
I like the planck's constant ideas, seeing the quantum world expand in everyday view. That would be one trippy experience!
lexichronicle2 11 months ago
Change Hubbles Constant so the Age of the univserse changes and The density of the universe changes! Oh wait....it already changes - it's not constant at all....
PianoKwanMan 1 year ago
At the atomic scale, can "Time Frame Dragging" be confused with the effects explained by Gluons?
markakroll 1 year ago
2 People didn't get their work turned in by 5:30.
xshortguy 1 year ago
Still the question has not been answered clearly. It may not be as easy. If sixtysymbols is a constant then I am tempted to d/dx it.
yabadabadoo7 1 year ago
i was watching something about the speed of light not actually being a constant because of the theory of the universe's expansion slowing down and thus all energy inside the universe slowing as well. I guess if that is true then there would be no such thing as a "constant"
vkotis 1 year ago
2) Ah, I see the gentleman at 6:20 preceded my question! The word 'constant' is obviously too presumptive and so should be renamed 'current regularity' or something similar.
Ontologistics 1 year ago
Why call regularities, 'constants', when their constancy cannot be proved? Is this assumption of eternity not a remnant of Platonism?
Ontologistics 1 year ago
4:41 " ...instead of it being 6.63 x 10^34 June the second" June the seconds? WAT!?
rtsjoe 1 year ago
@rtsjoe Joule seconds J*s
djasom 1 year ago
This has been flagged as spam show
@rtsjoe Joule seconds J*s
djasom 1 year ago
I bet if I made a channel like this for my department (history) it wouldn't be as fun.
TristanPEJ 1 year ago
Comment removed
adrianeaglrck 1 year ago
I think the speed of light is slowing down.
zenzetra 1 year ago
10^34's?? i got no idea what one of those are
flux1969 1 year ago
@flux1969 here's one of them:
10000000000000000000000000000000000
:D
DJPaddy643 1 year ago 6
5:50 - "then you get these 10^34's cumming all over the place"..... this is the base and seedy secret life of a mathpornographer.
bryansteeksma 1 year ago 54
E=MC^2^2 Because relativity is relative and relative is relative again and again.
rolandas1985 1 year ago
haha ):20 notice the book ATLAS OF CREATION
thats a FAMOUS creationist book, today's standard of creationist fail! I can't beleive they have it!
TheLiberalSoup 1 year ago
@TheLiberalSoup maybe its a reference book for when they have discussions on wether god exists?
mangoismycat 1 year ago
@TheLiberalSoup I saw somewhere that he said that he had it for debunking purposes.
Ibis333 1 year ago
I would change it so that it is possible to go faster than speed of light, and to resist the gravity of an event horizon.
atleast then we would know for sure that there is hope for travel to other galaxies and be a peeping tom on a black hole.
bedmasmath 1 year ago
Here's a crazy tidbit. We did special relativity AND general relativity in what is called "high school" in Romania.
metabog 1 year ago
@metabog I doubt you went through the math.
AlohaBay 1 year ago
@AlohaBay We went through the math, I'm sure we didn't go through it to final year undergraduate level, but I do remember exams with things like light cones Minkowski space and inertial reference frames. Come to think about it, it was probably only special relativity, since we didn't do any partial differential equations if I remember correctly. Our final year physics was getting ridiculous though with superfluous content that we were going to do in university anyway.
metabog 1 year ago
I'd lower the gravitational force :)
prynja 1 year ago
This has been flagged as spam show
The time has come for Free energy to be revealed ,But the big oil corporations don't want that technology revealed,Get a motor that works with the power of magnets only at LT-MAGNET-MOTORdotCOM ,Join the energy revolution!
checksummedchest 1 year ago
Those teeth.
from93till 1 year ago
This has been flagged as spam show
8========D~~~~(.Y.)
rlaproductions 1 year ago
I have such a crush on Meghan Gray <3
Nyphur 1 year ago 27
@Nyphur Same here. Gorgeous AND intelligent, a combination so rare these days...
edpjunior 1 year ago
@Nyphur strange taste..
rackslap 7 months ago
@sixtysymbols So then time travel could theoreticaly be possible if you could move something CLOSE to the speed of light, right? Since the light is arcing it would take longer to get from point A to point B. If the time traveling object moves in a strait line from point A to point B...
gibsonbaud1 1 year ago
I hate science so much in school, but this is just intresting, and I learn an awful lot more from scanning over this channel.
GordenBrown3D 1 year ago
OMG! I asked this question! Thank you Brady, for this and every other one of your fabulous videos. You are easily my favourite channel on YouTube. Never stop!
Kitsua 1 year ago
Does the universe abide by it's own Laws?
ZodeakUrganomix 1 year ago
If the Earth is Spinning around itself and around the sun, and the sun is going aroung the center of the galxy, and our galaxy is going around a central galaxy (not very sure about it) isn't it possible that I am now traveling in the speed of light?
12gabriel3 1 year ago
@12gabriel3 yes and no... it's complicated :)
derickhaywood 1 year ago
@12gabriel3 No, only if you would have no mass.
0x8x0 1 year ago
The burrito I just ate was spicy!
gotzJazzhandz 1 year ago
In essence, what relativity says is that space and time are not absolute but both are relative to the observer and the thing being observed, and the faster one moves the more pronounced these effects become. For example, Cosmonaut Sergei Avdeyev travelled 0.02sec into the future when he was onboard the Mir space station.Because, he circled the earth 11,968 times over the course of 748 day at 17,000 mph.
roguemale57 1 year ago
I feel like I'm going to school but it's interesting. LOL. I love it.
pro0glenn 1 year ago
I liked that he touched on the fact that the constants may not have always been constant. I think this idea of a slowly changing Newton constant or Planck constant helps explain how the universe is formed.The theory of Relativity lends to the idea that gravity affects time so our understanding of the age of the earth in relation to the age of the universe could be way off. Also the rate at which the earth vibrates and in fact our bodies vibrate has slowly been increasing, an indication perhaps?
CetraTJ 1 year ago
Man. Whenever I see a new sixtysymbols video, it will totally make my day. And this is definately, my favourite video yet. Especially, because I'm totally in love with researching about Einstein's Theory of General and Special Relativity. :)
TessaEe888 1 year ago
E=mc2 applies not just to nuclear reactions but chemical reactions. When you burn hydrocarbon fuel in your car with oxygen, the resulting mass of the CO2 and H2O (at the same temperature) differs by less than one part per billion. The tiny fraction of mass gets converted to energy.
Relativity applies to other daily processes as well but a physicist would be better suited to explain them.
FlashFizz 1 year ago
patiently waiting for the next part
okuma0kuma 1 year ago
Nice Miles Davis poster ;) Great vids, thanks guys!
metalmaniac767 1 year ago
I am dave ! yogpod and i love this channel
colwyn25 1 year ago
I found this channel last week and am absolutely in love with it, thank you for these videos!
subtilezaobvia 1 year ago
A movie that revolves around the changing of the the value of charge of an electron is called "The Quiet Earth" not all that scientific but a good watch all the same, and an interesting flashback to 1980's New Zealand. Pirate bay it. You couldn't buy it if you tried.
mcc4m1sh 1 year ago
Prof's are pretty much the only respectable job where your EXPECTED to come into work with bed hair
So jealous
FOXcorpislame 1 year ago
Where was part 3?
Neutrinoghost 1 year ago
AWESOME AWESOME AWESOME!!!
Definitely the best part of my day also, when a new Brady/Nottingham vid pops up in my subs box! And this one was EXTRA good.
Thanks again to all involved - youre all science superstars! :)
jeebersjumpincryst 1 year ago
The adverts at the end of this are hilarious. "Quantum Jumping". Woo-quacks are cooky.
Fordi 1 year ago
Oh mah gosh, you make physics sound like so much fun when you talk about walking through walls
mosle123 1 year ago
After you've watched this video, watch it again with youtube's "Transcribe Audio" feature.
TheBetterGame 1 year ago
0:00
0Banjo0 1 year ago
Good
9freelandk 1 year ago
Miles Davis
TadRaunch 1 year ago
@TadRaunch
That's what I thought. ;-)
smarthandsomeguy 1 year ago
Finally a highly scientific video. not just descriptions of stuff but a very analytical and scientific video. this style is the best and i think should be the basis for all your videos
BibleBurnr 1 year ago
excellent
BibleBurnr 1 year ago
Thank you so much for making some of the most difficult things to understand, so easy! From Chile, the country of the surviving miners I salute you Brady, you're the man!!!!
yoelrenzo 1 year ago
@yoelrenzo Thank you from Prof Roger Bowley ---I know about Chile for my wife comes from Valparaiso. (Es cierto yo soy porteña.) I salute her, she's the woman.
MrOldprof 1 year ago
@MrOldprof Thanks Professor! Muchos saludos a su esposa, ella sabe mejor que nadie, que Chilenos hay en todos lados =)
yoelrenzo 1 year ago
I'd change the speed of light constant... damn thing is too slow compared to the size of the universe! >.<
NAMLegolas 1 year ago
Thank you very much for uploading such interesting content to youtube!
sirsideways 1 year ago
I was up until 4am last night watching these videos... Damn you Brady!
Stickalas 1 year ago 33
@Stickalas don't blame me... blame the scientists!
Hope you haven't found periodicvideos yet - that'll take even longer!
sixtysymbols 1 year ago 18
@sixtysymbols damn u brady x2 i wasnt aware of periodicvideos until i just read that... ahhhh sleeeeep
serloinz 9 months ago
I got a question I can't find the answer to -
How much rock blasted off from the Earth by large meteor impacts leaves our solar system? How likely is such a rock to be captured by neighbouring solar systems and land on a planet there?
Hewpie 1 year ago
Nobody wanted to change the speed of light? Correct me if I'm wrong, but if we made c slower, we could observe all of the weird time and length dilation effects in our everyday lives. That would be really interesting imo.
DaDaWgLLS 1 year ago
I am surprised that noone mentioned the speed of light. Although I would have chosen Plack's constant as well.
mvoncken 1 year ago
very nice vid thx!!
Sheynan55 1 year ago
Changing Planks Constant in a lab...that would be the greatest experiment ever.
JonoriusGM 1 year ago
I just want to say that i really enjoy watching this channel and that I have learned a lot of interesting facts thanks to you. Keep up the good work!
bobby132231 1 year ago 61
@bobby132231 thanks!!!
sixtysymbols 1 year ago 25
I have the feeling that the video is mixed. They should be 2 videos, 1 general and special relativity and the other one in the fundamental constants.
Carutsu 1 year ago
It's so nice to know that as a physics student, even physics professors leave their projects and assignments to the last minute of the deadline
FormulaTrek 1 year ago
2:45 Special relativity is taught on the AQA physics A-level syllabus. So it's not that hard
iwan0t0smith 1 year ago
hope 60 symbols is a constant.
humanprototype 1 year ago 92
@humanprototype we're trying!
sixtysymbols 1 year ago 35
I wish I asked a more sensible question. Although mine still may get asked, probably not.
G3org3Master 1 year ago
i have to ask, what do you guys over at nottingham think about colonizing the moon?
Starchildcasanova 1 year ago
NO NO NO! Don't say the universe is fine-tuned! Creationists love it when real scientists say that! The "common sense" argument is: It's fine-tuned, therefore, there is a fine-tuner.
IRisingFuryI 1 year ago
@IRisingFuryI It really doesn't matter whether there was a fine-tuner or not. If it's outside of the scope of the natural world, it's outside of the scope of science.
Knayno 1 year ago
why do 2 of those scientists reluctant to imagine a hypothetical scenario? there is no harm in imagining things
robertwc82 1 year ago
Dear Sixty Symbols,
I have been watching your videos ever since the channel started and frankly i have learnt more than anyone at school could teach me from the books there. An Arabian saying is "Whoever taught me a letter, I would be their slave". Thank you for you have taught me much more than a letter.
jjkul1 1 year ago
6:14 - anyone who's ever sat in a waiting room, or had to sit through a boring lecture knows that some of the constants change... especially any to do with the passing of time ;-)
pikuorguk 1 year ago
but the speed of light is only constant in a vacuum. is the fact that light can be slowed down have any relevance to this theory?
robertwc82 1 year ago
@robertwc82: Not these theories. It has more to do with Einstein's theory about the photoelectric effect. When light passes through a medium, photons are absorbed and re-emitted, thus slowing them down.
BTW, the speed of light is also constant in a non vacuum - it's just lower than it is in a vacuum.
puncheex 1 year ago
@puncheex so what your saying, is it does not actually slow down in the traditional sense? im not sure i understand. when they say constant, do they mean reletive to the medium it passes through? it will only travel at 1 speed through water and another through air?
robertwc82 1 year ago
@robertwc82: Yes, light does slow down in the traditional sense when flowing through a uniform medium. It slows down something like 1% through clear air, and 25% through water, 60% through diamond. The velocity difference defines what is called the index of refraction of the material, and accounts for magnification through a lense.
puncheex 1 year ago
@puncheex i see. and you are saying the speed is constant, relative to the medium it passes through. water always travels through water at a constant speed?
robertwc82 1 year ago
@robertwc82: Yes. According to Einstein's SR, the speed of light in any medium is constant. Understand that light photons within a crystal still travel at the full speed of light in a vacuum; it is just that they are periodically captured by electrons and re-emitted after a time delay. That is what slows them down.
puncheex 1 year ago
@puncheex thats what i meant by "slow down in the tradtional sense". really it does not slow down in the sense that the photons change speed. decelerate. they just take longer to reach your eye?
thanks for taking time to explain
robertwc82 1 year ago
@robertwc82: You've got it.
puncheex 1 year ago
Change constants: m=~p . p=~m
Money=Power
Films4You 1 year ago
Umm. havnt you run out of '60' symbols?
intemister 1 year ago
@intemister Who said anything about symbols? It's "Sichtpsi sgmvfls"!
Gameboygenius 1 year ago
Comment removed
TheNotDone 1 year ago
when you are in the lift which is going up, the GRAVITY is pushing you down not the acceleration...
.. no gravity=no feeling when going up (:
bozy99 1 year ago
@bozy99 so explain why i can spin a bucket of water around my head, without getting wet... When you're in a lift which is going up, it takes time for your body to accelerate to the same speed as the lift and that's what we perceive as an increased feeling of gravity.
pikuorguk 1 year ago
@pikuorguk: First of all, velocity is a vector with both speed and direction. Acceleration is a change in either speed or direction. Spinning a bucket of water has a constant speed around a circle, but the direction is changing constantly, so the water is always accelerating when traveling in an arc. So, if you spin the bucket so that the acceleration is greater than 1 g, then there is always a net acceleration of the water toward the bottom of the bucket greater than 0, even when upside down.
puncheex 1 year ago
@bozy99: What they are saying is that there is no difference between the feeling that gravity is attracting you and the feeling of being constantly accelerated away from gravity.
In a lift on Earth, you are attracted to the floor when the elevator is at rest or at constant speed. When the elevator accelerates you feel increased weight; when it decelerates, you feel less weight.
puncheex 1 year ago
I would change Avogadro's constant to 42.
noxure 1 year ago
WOW 0 dislikes. woot for the intelligencia on youtube!
intemister 1 year ago
Yarraaa my name is in there ;-) he-he
RevDevilin 1 year ago
Found your channel.... about 2 weeks ago and i am loving it so far. your interviewed persons are extreamly intelligent, something your dont get to see online tht often, as well they seem to have a good sense of humour as well... so far i love the video of the solar eclipse, and the god question. as well your LHC video was humourous as no one fully knows what can happen there but the theories are amazing...
pyro5050 1 year ago
5:49 do you think we could have a translation?
FAB12UCB 1 year ago
Brady, you should win a nobel prize for propagating science to the mass population like this. You have NO idea how happy I get when I see an update from one of your channels in my subscription box.
odaymustdie 1 year ago 77
@odaymustdie I just walk into offices and ask questions - then pick the best bits and post them on YouTube....
I can think of a few hard-working and clever scientists that would be pretty cheesed off if I got a Nobel Prize for that!
sixtysymbols 1 year ago 47
@sixtysymbols regarding Brady getting a nobel prize, i don't know if that would be fitting, but it would be interresting. I would however be happy to see him recieve some sort of prize or honor, f.ex. for work related to innovation in public understanding of science.
I don't know if you need it, or it would be any help, but i think it could be interresting if Brady were given a grant or funding to expand periodic videos, sixty symbols, and nothingham science (possibly with dedicated staff?).
gulllars 1 year ago