I think it's hard to understand ghost particles in this video because as a "non-physicist" I don't understand the deficiency in the particle physics that Feynman or whoever was trying to fix. If the equation or the energies don't balance because of a missing factor "x", then x is the ghost particle and it is "real" in the sense that the experimental data are both consistent AND predictable using x. If you can predict results with x, x is real within the particle physical model. Or not?
The not virtual particles is basicly what you could describe as troll physics, were you simply take a number and add it to the equation to make it work like you want too. Like constants in normal equations.
The virtual ones are particles that do take a part in the experiment, but they dont realy matter in the end. And so to make the math work, you need to count them in.
So basicly its just a question of making the numbers work out.
it was very interesting video Brady and thank you for the upload. Sorry, i'm completely lost. All of those good ghost particles were disappearing before they reach me, lol.
Do that ghost particles have negativ mass?? Because antimatter has positiv mass and I thought that those virtual pairs are pairs of particle and antiparticle..I am confused about that.
im tinking of become a physist so I can tag along the gongshow which looks like a hell of a lot of fun and good times, and I can BS with the best of em put me on camera, just give me a few moments to make some shit up, and discuss with my colleagues so were all on the same page, wink;)
you guys dont worry if you cant understand, this is complete BS theese guys get paid to pull shit out their ass, sure some of it has been observed and exists but when they cant figure shit out, instead of having their funding cut they fabricate these crazy theories to validate their right to continue the research, which I might add a lot of which is screwing around in the lab and drinking off campus, how much actual work gets done?
if you were able to essentially fire "a stream of ghost particles" at a substance and the ghost particles are constantly taking energy from that substance, would you be able to get it eventually down to 0 K since it would eventually take away all energy from the molecules?
this ghost particles arent similar to antimatters? they are both "opposite" and sometimes are created from nothing.
Thinking about every particle as wave, it can have negative energy (Schrödinger equation allows it, but we ignored that because nobody ever see it). only question last why we dont see free "negative" particles? maybe this is again similar to problem like with antimatters. we live in "positive" world and because of that every ghost particles that get here, dies then hit some thing.
If you could fire a beam of high-speed negative-kinetic-energy particles at something, does that mean that they would transfer negative momentum, thus creating a reaction that pulled the object towards you? If so... yay! Star Trek tractor beam :)
I remember this video from 2 weeks ago ...only a few comments ...at that time I sooo failed at understanding ...now that I've just read all of the 231 comments I'm feeling oddly reassured again inthat I'm in plenty of company
Outstanding work, Brady. I loved the ghostly fade-in and fade-out effect with our two profs. Very nice touch. So quick question: with bonfire night coming up fairly quickly, are our friends over at PToV going to do something fireworks-like? Like describing how they work, and just how badly you'll be injured if you monkey about with them? Just a suggestion. Love your stuff, Brady. Keep up the wonderful work.
because the infinite is equal to nothing, every force has an equal and opposite force, you just havent reached the neutron string level, what you describe is like the wake off a boat and trying to determine the path of the boat by creating a relation between the surface resistance distortion, divided by the waters current direction and then a few times by chance getting a match to prove your theory when boat is traveling with the current :D but dont listen to me im a fool..
Interesting (in a bad way)... I read a very enlightening paper not too long ago on Dirac's FULL equation and his theory of a sea of negative energy, which made a lot more sense than this explanation that sounds more like a cop-out on not being able without doing Heisenberg's 'math trick'. Could you please give us your opinion on Dirac's theory and his complete equation, which seemed to work out perfectly without all the magic hocus pocus'ghost particles?
@xeel224109 He's talking about an invented type of particle that doesn't actually exist, but in mathematical terms it does. The trick is that you place this "ghost particle" as a factor in a open part of an ecuation making it a valid or invalid depending on where you need to go. As they said, there isn't only one path to getting a result there are numerous ways of getting the same result, what the ghost particles do is they clear the other ways and so you get the real, physical way of doing it.
I feel the explanation of the ghost particle was weak in that I don't know if it is an actual particle or a math construct. Fibonacci's Series is a beautiful concept that explains nature very well; but, at no point, would I ever say that nature itself is based off Fibonacci or that they are directly correlated. Something truly real might be Helium which is a definition of a particle that we know exists in Nature. We can call Helium real, but not Fibonacci's Series. Is the ghost particle real?
This comment has received too many negative votesshow
halloween gets special episodes? really?? will you be making special episodes about jesus or the prophet mohammad and their resurrection? no you won't and you fucking shouldn't. fuck halloween and fuck you for flirting with this or any other pagan tradition.
Another question: Would it be possible to produce a ton of particles with both positive and negative energy from nowhere, then get rid of the particles with negative energy by, lets say sending them to space, and then be left with particles with normal energy? You take nothing, zero, and make a plus one and a minus one from it, but you only salvage the plus one. Could something like that be used as a source of "free energy"?
@AudioJustG You will have to spend a lot of energy on producing these particles. And then you will spend energy on separating those particles, since they will be attracted to each other. Beside, a load of charged particles isn't really that useful.
Particles with negative energy, huh? I remember in the sixtysymbols video on wormholes, prof. Copeland explained that to have a stable wormhole, you'd need particles with negative energy, so could the "bad ghosts" be the possible solution to this? Or am I completely missing something?
So these ghost particles, are like imaginary numbers in Maths, they exist as, for example the square root of negative one so you can't give them a solid value, but you can still use them to get to your final conclusion.
Negative kinetic energy is not possible. That's like saying something is traveling at "negative 1 MPH". Kinetic energy is motion (movement). Potential energy is no motion. Negative kinetic energy would be less than zero movement. That's just not possible. Well... Unless that's a 4th dimensional "movement".
Wait. I'm having a problem understanding how a theory only holds up with actual "not real" particles required. I don't have the physics background, but I do have math and chemistry, and I just don't get how to make something that you say doesn't actually exist.
@hevyAccel In a very simplified way, something like this is a way of saying "we know something is happening, we know its effects, we know what properties it displays and we know how it would have to happen in order to get the observable results we get, but we can't actually see this process occurring". This is actually somewhat common in physics.
@hevyAccel Think of it like imaginary numbers. It may not represent an actual physical thing, but it can be used to get the right answer. (And imaginary number do have uses in describing physical phenomena, such as circuits)
@cyphern I can square "-i" and try to rationalize "d(x, y) = |x − y|" but I still don't "get" the existence of the ghost particle. Using something that is defined as not existing SHOULD NOT BE NEEDED! Fake mumbers make sense for a defined reason - things that don't actually exist don't have a reason. I can't wrap my head around intentionally invented things.
My point is, if they cancel out why do you need to calculate them? Is there any proof? Because how can something transmit negative kinetic energy like in magnet's photons?
So there's a theory with a mathematical model that fits reality really well, but to do so you have to pretend that some extra particles are interacting (that do not exist at the start or finish)? Conversely, sometimes you find a *real* particle that gets in the way in the theory and screws up the model, which is bad?
@mrwill711 well then I guess you have a problem. It's called... wait, you know what... I'm not in the mood for this. You were right all along. Peace my friend :)
Brady always asks the perfect questions. I was thinking: If they're not real why use them? Is it not like finding random words just to finish a crossword? Of course, I'm wrong. I really tried to follow this but like so much of particle physics I just have to accept that it is beyond me. Oh boy, but I do love to try!
and this is my freind i want to become a chemist. i study particals that i can see with the naked eye like raw elements not as complex like a hax Bozon
So do they actually exist? I listened to it twice but it still makes no sense lol. It it just that they are undetectable but must be there for the maths of what we observe to work?
A series of videos on the standard model, the different category of particles as well as the particles, how did we detect them, what do they mean for use on day to day life, and so on and so forth.
am i the only one who is extremely confused. so ghost particles are both virtual and physical? ok so their used to describe the path intergral model mathmatically but......
Very cool. But if you can combine the negative kinetic energy of ghost particles with the positive kinetic energy of say protons or electrons, could you in theory create perpetual motion? Or is it just too unstable to form such a system on a large scale?
Brady, you should have a warning at the beginning of the video for small children and those with delicate sensibilities. The spookiness may be too much for some.
Brady - really going nuts on the editing tricks on this one. I think you've already got quite the reel, you didn't need this to show off your skills. But this is a nice, condensed orchestra of Brady and his editing. Good on you.
I love theories, in fact i have one now. If I should rub my girlfriends magic button then i theorize i will eventually spurt an ectoplasmic residue which i will then need to wash off in the shower.......That's my theory.........yeah i can feel the energy build up now.
@Doenerwa No, YouTube just doesn't update in real time and freezes the view count at ~300 to check for bots/view spam. I realise you were trying to make a joke, but it is annoying that the joke was from being misinformed.
@Doenerwa I vote that it was an error with the IPS (Internet positioning system) not taking into account the gravitational field of google warping space-ping-time near and around youtube.
@xarepe1 I noticed that too, wondered if it might be some sort of deliberate physics in-joke, but then I remembered "never attribute to malice what can be easily explained by stupidity".
Richard Feynmann wrote an excellent book entitled QED: The Strange Theory of Light and Matter, which explains the ghost particles and path integrals in a very thorough and understandable way.
I realize your not trying to teach a math class, however, it could be an opportune time to give people a simple introduction to some of the more complex mathematical ideas used in entry level physics (i.e. Lagrangian in this instance).
The fact you guys attempted too explain this subject shows you respect your audience’s intelligence, why then post the comment “Bit of... simpler Halloween video about astronomy soon!”? This is like saying; we can’t explain this in a way you will understand so here are some beautiful pictures of the eagle nebula.
I can't help but notice that this sounds exactly like Taoism.
You have yin and yang (ie good and bad ghost particles), canceling each other out and what's left is the "Tao"; the infinitesimally thin line between those two invisible forces which makes up our physical universe.
It was an admirable attempt. It seems to me the whole idea is to sweep the ugly bits under the rug (sacrificing any chance at a physical interpretation for an increase in your ability to make calculations). It may be that I am of a simple mind, but I believe this gives rise to the public perception that most theoretical physicists are just solipsistic scholars propping up (certainly false) abstract concepts with arcane mathematics, an opinion I do not hold.
this doesnt even sound interesting to me because i know that you cant find these particles even if you try... it realy does sound like you are making up bullshit... just like the "higgs particle" the "god particle" ect ect... FIND ONE! this is rediculouse
Haha I really enjoyed this ghost effect, it was rather simple but the subject they were talking about was so complex that the idea in the end closed perfectly.
@PBDPBD Ooohh, I know why. The writing is always there, except that in the normal video it is overexposed. By combining the footage of the interview with the background footage, it's like applying a filter that decreases the exposure of the background video, thus letting some of the writing come through.
Cool example of an interaction effect (and an emergent property).
I think it's hard to understand ghost particles in this video because as a "non-physicist" I don't understand the deficiency in the particle physics that Feynman or whoever was trying to fix. If the equation or the energies don't balance because of a missing factor "x", then x is the ghost particle and it is "real" in the sense that the experimental data are both consistent AND predictable using x. If you can predict results with x, x is real within the particle physical model. Or not?
dogbishop 17 hours ago
kinda makes ghost particles sound like imaginary numbers...
purplezart 3 days ago
4:12 french fries and mustard explosion
Desom 6 days ago
The not virtual particles is basicly what you could describe as troll physics, were you simply take a number and add it to the equation to make it work like you want too. Like constants in normal equations.
The virtual ones are particles that do take a part in the experiment, but they dont realy matter in the end. And so to make the math work, you need to count them in.
So basicly its just a question of making the numbers work out.
This is how i see it, but its likelly wrong.
MrJooog 1 week ago
so if bad ghost particle where to exist they could cancel out all of the kinetic energy of an object and therefor chill it to absolute zero?
stardude692001 2 weeks ago in playlist Uploaded videos
@stardude692001 yep
7xXx666xXx7 2 weeks ago
They dance all around with their explanation.
TheDigitalStone 3 weeks ago
So... the gist I'm getting is that ghost particles are like extraneous solutions.. is this right?
unbal3 3 weeks ago
What?
TheCaphits 4 weeks ago
wikipedia org/wiki/Faddeev–Popov_ghost
AugustinusSextus 1 month ago 3
it was very interesting video Brady and thank you for the upload. Sorry, i'm completely lost. All of those good ghost particles were disappearing before they reach me, lol.
DrWestofReanimation 1 month ago
don't have any presentation or video for this? I'm not understand
BabyStarfruit 1 month ago in playlist More videos from sixtysymbols
Do that ghost particles have negativ mass?? Because antimatter has positiv mass and I thought that those virtual pairs are pairs of particle and antiparticle..I am confused about that.
tomaskvapil 1 month ago
im tinking of become a physist so I can tag along the gongshow which looks like a hell of a lot of fun and good times, and I can BS with the best of em put me on camera, just give me a few moments to make some shit up, and discuss with my colleagues so were all on the same page, wink;)
ricktbdgc 2 months ago
you guys dont worry if you cant understand, this is complete BS theese guys get paid to pull shit out their ass, sure some of it has been observed and exists but when they cant figure shit out, instead of having their funding cut they fabricate these crazy theories to validate their right to continue the research, which I might add a lot of which is screwing around in the lab and drinking off campus, how much actual work gets done?
ricktbdgc 2 months ago
@ricktbdgc You are mistaken.
qed100 2 weeks ago in playlist Uploaded videos
WTF
That is all
SuitablePlanet 2 months ago
if you were able to essentially fire "a stream of ghost particles" at a substance and the ghost particles are constantly taking energy from that substance, would you be able to get it eventually down to 0 K since it would eventually take away all energy from the molecules?
12co3dy21 2 months ago
this ghost particles arent similar to antimatters? they are both "opposite" and sometimes are created from nothing.
Thinking about every particle as wave, it can have negative energy (Schrödinger equation allows it, but we ignored that because nobody ever see it). only question last why we dont see free "negative" particles? maybe this is again similar to problem like with antimatters. we live in "positive" world and because of that every ghost particles that get here, dies then hit some thing.
vonnic 2 months ago
These people are the true heroes :D
blahblah0715 2 months ago
If you could fire a beam of high-speed negative-kinetic-energy particles at something, does that mean that they would transfer negative momentum, thus creating a reaction that pulled the object towards you? If so... yay! Star Trek tractor beam :)
macronencer 3 months ago
haha iam greek and when i saw the logo of this channel i spelled it :sixtps sgmblfs
grarosting 3 months ago
how can negative kinetic energy exist? it's like negative distance or time, please, can some1 pm me any page, book, vid explaining this
eugen9611 3 months ago
I remember this video from 2 weeks ago ...only a few comments ...at that time I sooo failed at understanding ...now that I've just read all of the 231 comments I'm feeling oddly reassured again inthat I'm in plenty of company
thanks for sharing ...cute editing guys
gaiagale 3 months ago
Outstanding work, Brady. I loved the ghostly fade-in and fade-out effect with our two profs. Very nice touch. So quick question: with bonfire night coming up fairly quickly, are our friends over at PToV going to do something fireworks-like? Like describing how they work, and just how badly you'll be injured if you monkey about with them? Just a suggestion. Love your stuff, Brady. Keep up the wonderful work.
rogerdotlee 3 months ago
because the infinite is equal to nothing, every force has an equal and opposite force, you just havent reached the neutron string level, what you describe is like the wake off a boat and trying to determine the path of the boat by creating a relation between the surface resistance distortion, divided by the waters current direction and then a few times by chance getting a match to prove your theory when boat is traveling with the current :D but dont listen to me im a fool..
tyga42 3 months ago
ouch! - my brain has turned to Jelly and it is dribbling out my ear's
tartandaddy 3 months ago
@tartandaddy bwah hahahaI ....sooooo resemble this remark ...I thinking what?!?!?!?
gaiagale 3 months ago
I didn't really understand this :(
Chirigami 3 months ago
@Chirigami same here
34Diana1 3 months ago
very transparent
Czeckie 3 months ago
Interesting (in a bad way)... I read a very enlightening paper not too long ago on Dirac's FULL equation and his theory of a sea of negative energy, which made a lot more sense than this explanation that sounds more like a cop-out on not being able without doing Heisenberg's 'math trick'. Could you please give us your opinion on Dirac's theory and his complete equation, which seemed to work out perfectly without all the magic hocus pocus'ghost particles?
Uminchuu 3 months ago
Wait this is a BS theory to explain a problem with your theory.
rabbitsib 3 months ago
First time ever i can't understand ANYTHING they explained.
xeel224109 3 months ago 31
@xeel224109 He's talking about an invented type of particle that doesn't actually exist, but in mathematical terms it does. The trick is that you place this "ghost particle" as a factor in a open part of an ecuation making it a valid or invalid depending on where you need to go. As they said, there isn't only one path to getting a result there are numerous ways of getting the same result, what the ghost particles do is they clear the other ways and so you get the real, physical way of doing it.
tommapar88 1 month ago
Damn. I love science and Scientists.
keymared77 3 months ago
if he had used grapefruit i would understood all this perfectleee
SuperKinevil 3 months ago
Quantum physics as a whole seems kind of spooky.
SheBlindedMeWScience 3 months ago
i felt like i almost got this.... and then he lost me at apples and ghosts :/
Gear244 3 months ago
I feel the explanation of the ghost particle was weak in that I don't know if it is an actual particle or a math construct. Fibonacci's Series is a beautiful concept that explains nature very well; but, at no point, would I ever say that nature itself is based off Fibonacci or that they are directly correlated. Something truly real might be Helium which is a definition of a particle that we know exists in Nature. We can call Helium real, but not Fibonacci's Series. Is the ghost particle real?
flybyproxy 3 months ago
This comment has received too many negative votes show
halloween gets special episodes? really?? will you be making special episodes about jesus or the prophet mohammad and their resurrection? no you won't and you fucking shouldn't. fuck halloween and fuck you for flirting with this or any other pagan tradition.
kmica2008 3 months ago
@kmica2008 Calm down.
ThaKang0f713 3 months ago
WTF
JoelT23 3 months ago
I'm learning so much its spooooooooky.
tapelegs 3 months ago
nicely explained... and I still don't understand...
but I don't understand a little bit more than before :))
dblitroot 3 months ago
Love it Brady that you plays devil's advocate and ask questions, that as a viewer, I had watching the video. Continue the wonderful work.
FortOrdDirt 4 months ago
Another question: Would it be possible to produce a ton of particles with both positive and negative energy from nowhere, then get rid of the particles with negative energy by, lets say sending them to space, and then be left with particles with normal energy? You take nothing, zero, and make a plus one and a minus one from it, but you only salvage the plus one. Could something like that be used as a source of "free energy"?
AudioJustG 4 months ago
@AudioJustG You will have to spend a lot of energy on producing these particles. And then you will spend energy on separating those particles, since they will be attracted to each other. Beside, a load of charged particles isn't really that useful.
KornSarum 4 months ago
@AudioJustG No.
bullitz78 4 months ago
Particles with negative energy, huh? I remember in the sixtysymbols video on wormholes, prof. Copeland explained that to have a stable wormhole, you'd need particles with negative energy, so could the "bad ghosts" be the possible solution to this? Or am I completely missing something?
AudioJustG 4 months ago
Great job, Brady! You all are a fine group of people.
Barnekkid 4 months ago
@itsMinuteMaid unless your measuring it as a Vector
Ashda8 4 months ago
So these ghost particles, are like imaginary numbers in Maths, they exist as, for example the square root of negative one so you can't give them a solid value, but you can still use them to get to your final conclusion.
Ashda8 4 months ago
Negative kinetic energy is not possible. That's like saying something is traveling at "negative 1 MPH". Kinetic energy is motion (movement). Potential energy is no motion. Negative kinetic energy would be less than zero movement. That's just not possible. Well... Unless that's a 4th dimensional "movement".
itsMinuteMaid 4 months ago
I'm more confused than ever.
AtheistKharm 4 months ago
Ghost Particles burn cold, sink up, float down, explode slowly and exist in non-reality
carloldelpizzo 4 months ago
Comment removed
carloldelpizzo 4 months ago
halloween, really?
dovlaBass 4 months ago
This has been flagged as spam show
the dislike bar is ninja! its there but u cant see it :)
CISCOTREE 4 months ago
I love the editing, great job :)
mione3690 4 months ago
Wait. I'm having a problem understanding how a theory only holds up with actual "not real" particles required. I don't have the physics background, but I do have math and chemistry, and I just don't get how to make something that you say doesn't actually exist.
hevyAccel 4 months ago
@hevyAccel In a very simplified way, something like this is a way of saying "we know something is happening, we know its effects, we know what properties it displays and we know how it would have to happen in order to get the observable results we get, but we can't actually see this process occurring". This is actually somewhat common in physics.
DistendedPerinium 4 months ago
@hevyAccel Think of it like imaginary numbers. It may not represent an actual physical thing, but it can be used to get the right answer. (And imaginary number do have uses in describing physical phenomena, such as circuits)
cyphern 4 months ago
@cyphern I can square "-i" and try to rationalize "d(x, y) = |x − y|" but I still don't "get" the existence of the ghost particle. Using something that is defined as not existing SHOULD NOT BE NEEDED! Fake mumbers make sense for a defined reason - things that don't actually exist don't have a reason. I can't wrap my head around intentionally invented things.
hevyAccel 4 months ago
Weird, with this particular vid I don't get sound :s
Kense3 4 months ago
I am absolutely certain I don't understand this. I will make it my mission to at least be able to pretend I do. :P
Any good sources for this sort of stuff, anyone?
Surtak 4 months ago
i love the symbol for this sixty symbols video XD
reubensugars 4 months ago
And obviously they dont cancel out because they exert a force.
murdakah 4 months ago
My point is, if they cancel out why do you need to calculate them? Is there any proof? Because how can something transmit negative kinetic energy like in magnet's photons?
murdakah 4 months ago
awkward moment when a scalar value is negative
nmuller789 4 months ago
304 views but 567 likes n 4 dislikes ,so 267 are GHOST viewers !!!
Sixty Symbols Plz make vdo abt ghost viewers
aki20947 4 months ago
@aki20947 thumbs up fail
emerybryant 4 months ago
Once again my brain hurts so good.
zebruh 4 months ago 48
@zebruh That was an awesome comment
11Agamemnon235 3 months ago
The apple and inflatable ghost were essential. :-)
heyandy889 4 months ago
This has been flagged as spam show
Then, there is a problem with the theory?
blade9z 4 months ago
This has been flagged as spam show
/watch?v=GItLo1EvEt8
A video on how i found a naked boy in my school :)
MrStupidCrackers 4 months ago
So there's a theory with a mathematical model that fits reality really well, but to do so you have to pretend that some extra particles are interacting (that do not exist at the start or finish)? Conversely, sometimes you find a *real* particle that gets in the way in the theory and screws up the model, which is bad?
texnician 4 months ago
Is it me, or is Ed looking a little see thru? :p
esperoni05 4 months ago 31
So are ghost particles same as dark matter in some sense?
frichikendz 4 months ago
aaaw.. my head :D
Mastertim2006 4 months ago 2
naa naa professor you're lying.... jk jk :P
ferrarixxz 4 months ago
well over 200 "ghost viewers"
TheKturner05 4 months ago
@mrwill711 well then I guess you have a problem. It's called... wait, you know what... I'm not in the mood for this. You were right all along. Peace my friend :)
xarepe1 4 months ago
Brady always asks the perfect questions. I was thinking: If they're not real why use them? Is it not like finding random words just to finish a crossword? Of course, I'm wrong. I really tried to follow this but like so much of particle physics I just have to accept that it is beyond me. Oh boy, but I do love to try!
DaithiDublin 4 months ago 2
=3= sounds made-up.
whothehellisthat 4 months ago
great job with the editing Brady !
LogInfinity 4 months ago
and this is my freind i want to become a chemist. i study particals that i can see with the naked eye like raw elements not as complex like a hax Bozon
miesrah12 4 months ago
Much appreciated.
Lewdeman 4 months ago
Ow my brain...
eprohtwagwerdna 4 months ago
I ain't afraid of no ghost.
culwin 4 months ago 2
So do they actually exist? I listened to it twice but it still makes no sense lol. It it just that they are undetectable but must be there for the maths of what we observe to work?
ben9345 4 months ago
Don't get it...
UKDiscoDave 4 months ago
Brady, I have a request.
A series of videos on the standard model, the different category of particles as well as the particles, how did we detect them, what do they mean for use on day to day life, and so on and so forth.
What do you say?
lugosky02 4 months ago
@lugosky02 great idea; I would enjoy watching a series like that.
294007 4 months ago
This whole thing makes no sense to me whatsoever.
CuriousMoth 4 months ago
Since pacman ghosts are shown occasionally, wouldnt cherries have been a more fitting positive particle? :D
passwordresetisbroke 4 months ago
@passwordresetisbroke Well no, they're stable :D
g00hz 4 months ago
so would the negative energy be based on heisenburgs uncertainty principle? since it is happening in a really small space?
TiganyZ 4 months ago
2:19 penis action
AH900112 4 months ago
Is dark matter ghost particles in a sense?
MrStillmans 4 months ago
When something is this complicated to explain you need some new theories. Sounds like an exercise in mental masturbation to me.
gamebent 4 months ago
please do a bose einstein condensate video :)
MultiCheeseGrater 4 months ago
i think i get it!
taconight2night 4 months ago
am i the only one who is extremely confused. so ghost particles are both virtual and physical? ok so their used to describe the path intergral model mathmatically but......
iv54 4 months ago
I like science. But I hate this. I'm more baffled now than before when I knew nothing of ghost particles.
Benjuthula 4 months ago
This has been flagged as spam show
First, you must realize, "The spoon does not exist."
toolshedjunky 4 months ago
This is very hard to understand when your mother's tongue isn't English... ;)
pabloenis 4 months ago
@pabloenis Sorry, i never heard that saying. What does it mean? XD
crewealexboy 4 months ago
@crewealexboy
Mother tongue refers to the first language that a person learns and the language used in that person's home country. (noun)
An example of mother tongue is English for someone born in America.
YourDictionary Definitions. Copyright © 2011 by LoveToKnow Corp.
pabloenis 4 months ago
awesome
MisterXenocideZero 4 months ago
love a good MindBlow in the AM :D
taydigidy 4 months ago
Quantum theory is actually scarier than any fiction ever written!
QuantumGh0st 4 months ago 79
@QuantumGh0st In what way is it scary? o_0¿
Typho0n86 4 months ago
This is the first clip where I don't understand the things being explained.
janeyanna 4 months ago 17
@janeyanna Hawking's The Grand Design explains path integral theory pretty well. It's actually a great book that is easily digestible.
ninjasownpirates 4 months ago
@ninjasownpirates Thanks for the tip :)
janeyanna 3 months ago
That's the best symbol so far!
japanesepoptart 4 months ago
@mrwill711 Ahaha that's a bit far fetched don't you think?
xarepe1 4 months ago
Very cool. But if you can combine the negative kinetic energy of ghost particles with the positive kinetic energy of say protons or electrons, could you in theory create perpetual motion? Or is it just too unstable to form such a system on a large scale?
sudokode420 4 months ago
DID HE GET HIS Ph.D???
19Tranc3r92 4 months ago
What? If they are not a real thing, how do they cause something real to be altered?
boldger13 4 months ago 2
Brady, you should have a warning at the beginning of the video for small children and those with delicate sensibilities. The spookiness may be too much for some.
bigdaddyaen 4 months ago 2
Nice video! Spooky stuff.
bamboo4tameshigiri 4 months ago
@mrwill711 yes I did. why is that?
xarepe1 4 months ago
hahah very awesome video!
mccdotedu 4 months ago
Brady - really going nuts on the editing tricks on this one. I think you've already got quite the reel, you didn't need this to show off your skills. But this is a nice, condensed orchestra of Brady and his editing. Good on you.
TheZamzow 4 months ago
I'm reminded of the Look Around You episode about the haunted laboratory.
skonkfactory 4 months ago
I love theories, in fact i have one now. If I should rub my girlfriends magic button then i theorize i will eventually spurt an ectoplasmic residue which i will then need to wash off in the shower.......That's my theory.........yeah i can feel the energy build up now.
EBOWARRIOR 4 months ago
failed theory
ghost particle
???
profit?
MrEightyGig 4 months ago 3
322 likes, 3 dislikes but just 304 people selected this video.
Neutrinos anyone?
Doenerwa 4 months ago 62
@Doenerwa Nope, it's called youtube math.
Giss43 4 months ago
@Doenerwa It is a Youtube thing - until someone at YouTube reviews the video the view count stays around 300.
RobertSeattle 4 months ago
@Doenerwa No, YouTube just doesn't update in real time and freezes the view count at ~300 to check for bots/view spam. I realise you were trying to make a joke, but it is annoying that the joke was from being misinformed.
WeaselWJ 4 months ago
@Doenerwa I vote that it was an error with the IPS (Internet positioning system) not taking into account the gravitational field of google warping space-ping-time near and around youtube.
hydrox24 4 months ago
"mind-mendind" Brady? Don't you mean "mind-bending"?
xarepe1 4 months ago
@xarepe1 I noticed that too, wondered if it might be some sort of deliberate physics in-joke, but then I remembered "never attribute to malice what can be easily explained by stupidity".
ShallowBeThyGames 4 months ago
this is all so counter-intuitive.... i love it
jaymayhoi 4 months ago
Ghost particle BOO!! haha. Or would that be an anti BOO? Which wouldn't be a BOO! at all :(
Malithion2001 4 months ago
Richard Feynmann wrote an excellent book entitled QED: The Strange Theory of Light and Matter, which explains the ghost particles and path integrals in a very thorough and understandable way.
Envergure 4 months ago
This has been flagged as spam show
LittleBigWonda 4 months ago
I realize your not trying to teach a math class, however, it could be an opportune time to give people a simple introduction to some of the more complex mathematical ideas used in entry level physics (i.e. Lagrangian in this instance).
cswanson3 4 months ago
The fact you guys attempted too explain this subject shows you respect your audience’s intelligence, why then post the comment “Bit of... simpler Halloween video about astronomy soon!”? This is like saying; we can’t explain this in a way you will understand so here are some beautiful pictures of the eagle nebula.
cswanson3 4 months ago 2
I can't help but notice that this sounds exactly like Taoism.
You have yin and yang (ie good and bad ghost particles), canceling each other out and what's left is the "Tao"; the infinitesimally thin line between those two invisible forces which makes up our physical universe.
noxure 4 months ago
It was an admirable attempt. It seems to me the whole idea is to sweep the ugly bits under the rug (sacrificing any chance at a physical interpretation for an increase in your ability to make calculations). It may be that I am of a simple mind, but I believe this gives rise to the public perception that most theoretical physicists are just solipsistic scholars propping up (certainly false) abstract concepts with arcane mathematics, an opinion I do not hold.
cswanson3 4 months ago 2
Don't cross the beams of ghost particles or you'll get protonic reversal!
Harekiet 4 months ago
I thought virtual photons did exactly what you said the "bad" ghost particles did.
jakevikoren 4 months ago
this doesnt even sound interesting to me because i know that you cant find these particles even if you try... it realy does sound like you are making up bullshit... just like the "higgs particle" the "god particle" ect ect... FIND ONE! this is rediculouse
666alilthrowedoff666 4 months ago
@666alilthrowedoff666 did you mean that or 'ridiculous'
gaiagale 3 months ago
This has been flagged as spam show
ok... i think you guys are just making shit up....
666alilthrowedoff666 4 months ago
The renormalization of math turned it into the dogma you see here.
BrainChild666 4 months ago
It still sounds a bit wishy-washy to me... ;)
afhdfh 4 months ago
Fun video! :)
aMondia 4 months ago
hey brady would you mind telling me how much you get paid by youtube and does any of the money go to the sciencists you interview?
mcdaid12 4 months ago
I think this video could have been hours long, and I wish it was! Great video.
QJX 4 months ago
Yeah, Im confused and cannot grasp negative energy but, thats not the only reason why Im confused.
xXLegionX 4 months ago
no subtitles (cc) -rage-
Koroistro 4 months ago
Things can be.. un... physical... *bangs head*
sm0kingJay 4 months ago
Sixty Symbols im my subscription box!! im happy now!
PlutonGB 4 months ago
This is rather strange and hard to understand, but great video nonetheless!
razveck 4 months ago
Haha I really enjoyed this ghost effect, it was rather simple but the subject they were talking about was so complex that the idea in the end closed perfectly.
Good job Brady
Draxis32 4 months ago
DR. COPELAND! YOU DA MAN!
Higgs666 4 months ago
I can't help but think of complex numbers and imaginary parts. As if matter is complex, having a real and an imaginary/virtual part.
FHomeBrew 4 months ago
omg, why does writing sometimes appear on the white board when a "ghost" appears in front of it?
Now THAT is scary.
PBDPBD 4 months ago
@PBDPBD Ooohh, I know why. The writing is always there, except that in the normal video it is overexposed. By combining the footage of the interview with the background footage, it's like applying a filter that decreases the exposure of the background video, thus letting some of the writing come through.
Cool example of an interaction effect (and an emergent property).
PBDPBD 4 months ago
Interesting, but a particle of mathematical convenience. A discussion of how we would quantify and detect actual ghosts would have been great =)
F3ARL388 4 months ago
My brain is full of ghosts, this is seriously confusing
Neat editing though!
DeoMachina 4 months ago
This sounds a lot like virtual particles and particle pair creation.
I would be interested to know if this phenomena might account for things such as the Casimir effect, and much of the hidden mass of the universe.
Maybe the mass of Dark Matter is countless pair-created particles?
Maybe the force behind Dark energy is tied to their interaction with the rest of the universe?
If so, then 95% of the universe is virtual... *boggle*
L00NGB00W 4 months ago
I give up on this one xD
Demov12 4 months ago
1=0.9999...
hla27b 4 months ago
Sorry, I've been drinking tonight, if this comment is inappropriate I apologise on behalf of my sober self.
Lambda=0?
Zappyguy111 4 months ago
Have these so called ghost particles been observed or are they just theoretical waiting to be observed?
irtepmit 4 months ago