Newton's Equation of Gravity - Beautiful Equations - BBC Four

[deckypipes]

Can anyone tell me why Professor Ruth Gregory used r as the RADIUS of the earth (6,000km), but when Matt Collings explains it again later he uses r as the DISTANCE between to the two masses?

[TheisticThinker]

@deckypipes 'r' in Newton's equation for Gravity is taken to be the distance between the centers of the two masses, so for an object at the surface of the Earth, 'r' would equal the Earth's radius.

[AshyTaco]

Back Matter...... ???

[MrEmorfus]

To me, the most beautifull equation will be when mankind discover WHAT IS THE CAUSE OF THAT INVISIBLE AND MISTERIOUS FORCE OF GRAVITY. The Newton equation only explain the reproduction of the PHENOMENA but it does not say what is the cause of the phenomeno. but it does not say what is the cause of the ENERGY of the phenomena. When mankind could discover the cause and the energy, then mankind will know also what is ANTIGRAVITY and we will travel to other parts of the universe without any problem"

[OnlinePokerCowboy]

@MrEmorfus Even if we knew the causes, i would say that gravity is something that would not be able to be produced or nullified, yes people can go in anti gravity chambers, but this hasnt really nullified gravity it has simply put urself in a shell to seperate yourself from it.

Also traveling around the universe isnt a big agender anymore, it really only was for the publicity, we can see so far out now though that it is more important to find out whats there than actually visit it.

[US51351142]

You Brits are so cute. Why are so many of them are over here and wouldn't dream of going back, aluminum or not?

[US51351142]

We don't say aluminium because it's stupid.

[cracker420er]

believe it or not, we studied and derived the grativational force equation in year 8.

yes, pakistani education is difficult -_-

[ilikebeubz]

an electron dosent go around an atom encapsulates it in a circle because the electron has bent round onto itself because it used to be a bit of free radiation in space but now it met its other end and the strong nuclear force keeps it rippleing in a loop. if you disturb the loop it shoots out back into space hwere as a str8 line it will dissipate

[ilikebeubz]

if you were standing in the 4th dimension and wiggled stuff about you would cause radiation in this dimension

[ilikebeubz]

@ilikebeubz i mean the n+1 dimension becuase dimension is infinate i think, so if you can picture infinate dimension of calm what would cause somthign to radiate in our dimension which is probably somewhere in the middle of infinity (here is no other place in infinity except middle)

[ilikebeubz]

@ilikebeubz OK so my conclusion is that - Gravity is ---- ..... the IRONING out OR RADIATION which is basicaly space distorsion

[ilikebeubz]

@ilikebeubz the IRONING OUT of RADIATION, so everything is made of radiation and radiation is made from fabric of space, radiation near radiation should cause a force which has an effect on both bits of radiation

[ilikebeubz]

@ilikebeubz like an interference pattern

[ilikebeubz]

guy 4 in the boat says "ELECTRONS" are the most fundimental particles LOL

[ilikebeubz]

the guy chatting about time was good

[ilikebeubz]

WHAT A CROCK OF SHIT !!!!, the first guy in the line of interviews says "energy is teh capacity of doing things" - not too bad yeh maybe vagueley, and the SECOND women was compleetly dum as hell, she thinks ISAAC was the first person to invent equasions and she cant even use other typed of mesurment in weight, so far im half way throgh watching and im feeling that the guy is talking to amatures.

[bellebrett]

How does a video about numbers turn into a debate on language? Newton would be pissed that you aren't paying attention to his fucking equation. He would stand on the shoulders of giants...and then spit on all you pedants.

[Molo9000]

Newton's equations might be beautiful, but Einstein's equations are more accurate :)

[ilikebeubz]

@Molo9000 both are amazing, e=mc2 is abit more cool, gravity is a bit more usfull

[Molo9000]

@ilikebeubz

Newton's theory of gravity has been disproven by accurate observation of planet orbits in the 19th century and superseded by Einstein's theory of general relativity in 1915.

Newtons theory is "wrong" but it's a lot simpler than Einstein's and accurate enough for day-to-day non-relativistic calculations.

[ilikebeubz]

@Molo9000 wow thanks for sharing this with me i had no idea, i will have to reasearch, but hey, i thoght general relitivity was to do with time and matter ? not matter and force

[ilikebeubz]

@Molo9000 does it mean force is relitive to space time distortion caused by mass

[ilikebeubz]

@Molo9000 or does it mean everything is relitive to everything

[Molo9000]

@ilikebeubz

I'm no physicist and only know the basics of special and general relativity.

My understanding is that Einstein explains gravity through the curvature of space time.

I suggest wikipedia if you want to know more.

[scienceupholder]

"Its a complicated Equation..." Really? are people this bad at mathematics that GMm/r^2 is complicated?

[Gunner3210]

@scienceupholder Unfortunately, people are that bad at maths.

[winnie412ii]

@entropicprinciple Was the name not changed at the suggestion of the original guy who discovered it and then chosen as the correct term at some science conference thing. Also don't most American scientists call it aluminium in contrast to most Americans?

[EntropicPrinciple]

@winnie412ii No, it was in Davy's book published on the subject 4 years after the fact and in his initial lab notes. A reader of a British journal wrote in and demanded that the name be changed, and enough people agreed that aluminium was superior that it caught on. BTW, Canadians call it aluminum too. Most American scientists refer to it as aluminum, which is why both IUPAC and the ACS accept both names.

[EntropicPrinciple]

@EntropicPrinciple Wikipedia brings up a good point, that Davy was following the recent trend with the names of platinum, tantalum, and molybdenum by dropping the "i".

[EntropicPrinciple]

@EntropicPrinciple Wikipedia also corrects me in saying that aluminum was in Davy's original lab notes. It was not. He used "alumium". It also corrects me in saying that it was a reader of the journal; it was actually a literary critic on the journal staff. My memory is foggy, it appears.

[ilikebeubz]

@EntropicPrinciple who gives a shit about the people ? its the marks they make, these people who rag on about the people who made teh marks so we can read them, those people are teh ones who would keep it to themselves, SELFISH

[mricha73]

@oljackson99  "only america say math" If we want to be precise, which apparently we do, America say nothing... Americans speak in our manner, which has clearly diverged from the origins of the language ... but America, as I know it, has no common voice.

[tobygaltress]

@SerPinkKnight Thats because a physic is a medicine, which is nothing to do with physics, the study of the physical forces which govern our universe. The reason we use physics is because it is the combination and contraction of the word physical and the suffix -ics meaning a body of knowledge

As far as I am aware the reason you say math is because at high school you can choose a particular discipline of mathematics thus making it a singular. That doesnt mean the entire field of study is singular

[MysticalFlyingMonkey]

If I had a good teacher, I would've taken Physics for A-levels...but the teachers are, well, shit. So, I was like "Nah, mate, i'll get my As in other sciences"

Oh, and it's mathS. This is just basic English, people.

[SerPinkKnight]

On the one hand you do say physics, not physic

On the other, you don't say chemistries

[gjozefi]

@SerPinkKnight exactly

[Paranomasia12]

Math(ematic)s...with a 's' at the end...because it's plural as there is more then one field of maths

[pcmacdoctor]

Math-not maths. Only the English continue with this pronunciation.

[Shanny123456789]

@pcmacdoctor Well it is our language...

[TheSlyRipper]

@pcmacdoctor That's because we're right. It's plural...

[highestsettings]

@pcmacdoctor I think you'll find only the Americans continue with Math. Considering that's wrong.

[oljackson99]

@pcmacdoctor only america say math. like the way america only say aluminum instead of aluminium. they dont like following the correct trends because they think it makes them look powerful and unique, when in fact it makes them look thick and uneducated...

[MrRodneyBewes]

@oljackson99 Or it could just be regional differences.

/Not an American or Brit.

[EntropicPrinciple]

@oljackson99 The original discoverer of aluminum named it aluminum. A British journal objected to the sound because it didn't sound classical enough and renamed it aluminium. It is actually Americans who refer to the metal as was intended by its discoverer and the British who changed the name to suit their preferences.

[oljackson99]

@EntropicPrinciple it was to suit the periodic table, which all the elements go into and therefore need to follow the correct trends. they should have just been happy with the discovery but as usual, have to be awkward about it and make damn sure it doesnt follow the correct trend of naming the elements

[EntropicPrinciple]

@oljackson99 It is unfortunate that the U.S. doesn't use the metric system because it is inherently superior (the transition costs would be prohibitive at this point), but other than that, I can't say I see a huge negative trend.

[billyhigdon]

@oljackson99

I agree, it's sort of like when Europeans rag on Americans cause they think it makes them look educated and more progressive... when in fact it makes them look ignorant and overly judgemental. It's fucking words dude, grow up and enjoy the video.

[ilikebeubz]

@billyhigdon everything is from north pakistan

[oljackson99]

@billyhigdon trust me if theres one thing europeans are not, its ignorant. i know not all americans are ignorant and narrow minded, but a worrying amount are

[billyhigdon]

@oljackson99

i can agree on that

[Doctorwhorage]

@oljackson99 wow i didn't know they say aluminum really?? They thought thats too many letters to learn and if we try to teach our kids the correct spelling it will blow their minds. I agree with you hey where are you from btw?

[oljackson99]

@Doctorwhorage England mate

[Doctorwhorage]

@oljackson99 Ok... but where in England?

[oljackson99]

@Doctorwhorage leeds

[rhomeister]

@oljackson99 It was actually called aluminum first by the (British) chemist working with it, It was later changed to conform with the trend for naming elements but Americans stuck with the original. Several words people consider to be Americanisms were actually used first in Britain. As for why they're different, I would imagine it has a lot more to do with the language developing on either side of the Atlantic than anything else!

[wyleehokie]

@oljackson99

Think again before you paint with such a broad brush

"The spelling aluminium is the international standard in the sciences according to the IUPAC recommendations, which however add The alternative spelling ‘aluminum’ is commonly used [by scientists].[10] Humphry Davy, the element's discoverer, first proposed the name alumium, and then later aluminum. ... Canada uses aluminum and Australia/New Zealand aluminium, according to their respective dictionaries.[12]" Wikipdedia

[oljackson99]

@wyleehokie think you missed the point a bit there

[wyleehokie]

@oljackson99

I was replying to your post "only america say math. like the way america only say aluminum instead of aluminium. they dont like following the correct trends because they think it makes them look powerful and unique, when in fact it makes them look thick and uneducated..."

Such differences are not an indication of a lack of education or sophistication, but are merely cultural differences

[oljackson99]

@wyleehokie it is fair to say that americans cannot see beyond their own self centred culture. they seem to think whatever they say is correct and everyone else is wrong. its because the US has an almighty chip on its shoulder cos its a country with very little history. Britain was revolutionising culture before america even existed

[wyleehokie]

@oljackson99

And the same can be said of the French, Japanese, Chinese, and even the Brits. And your readiness to paint with such a stereotypical brush proves my point as you fall into the same trap as you claim we "ignorant" Americans do. Especially when you claim that a mere spelling difference is evidence of "ignorance" or "self - centeredness".

[oljackson99]

@wyleehokie theres more to it than just the spelling of a few words. that was just an example of one of many things. the american government is the most hypocritical and ignorant government on earth, albeit not quite so bad under obama but his handling of the BP affair was simply awful

[wyleehokie]

@oljackson99

Awww, now we get to the driving factor here. Please give examples of this hypocrisy and discuss how it is worse than other historic examples from other countries (Japan, China, France & Germany, Russia, Saudi Arabia, and include the UK)

[oljackson99]

@wyleehokie ive got far better things to do with my time. il give u one word though. bopal

[wyleehokie]

@oljackson99

I take it you are referring to Bhopal, India.  And if you have better things to do with you time, why do you respond and cite Bhopal?

[oljackson99]

@wyleehokie just leaving you something to think about

[wyleehokie]

@oljackson99

Please elaborate. Alas, I'm not a mindreader.

[oljackson99]

@wyleehokie i shouldnt need to everyone knows about the americans involvement and disgraceful attitude they took towards their own mess in bhopal. if you dont know that then its because u must be an american. its a vicous circle

[wyleehokie]

@oljackson99

Ummm, it was not the US govt that caused the leak. It was a private company and a lack of properly working safety equipment and oversight by the employees. Just what did the US govt do? Are you referring to efforts by the Indian govt to have the Union Carbide Pres extradited to India?

Of course, let's not mention the release of the Pan Am 103 bomber from prison to return to Libya.

[oljackson99]

@wyleehokie well im not scottish for a start. obama spoke about making bp pay for every penny of damage caused straight away. this is coming from the same government is still dodging its responsibilities to pay for the lives in ruined in india. america gives out the impression it is fine if thousands of indians die, indian lives are worthless. but as soon as some oil turns up on american shores it becomes a different matter. its american naivity vs world logic. only the amercans cannot see this

[wyleehokie]

@oljackson99

Again...... Union Carbide is a company and they are the entity that caused the accident. Logically, how is the US Govt responsible for their actions. What power would the US Govt, or any democratic govt, have to force a specific company to pay for an accident that occured in another country?

As to the Pan Am bomber, the issue is charges that the UK and Scottish govt gave in to Libyan efforts to have the man released for the benefit of oil or natural gas drilling rights.

[wyleehokie]

@oljackson99

You cite this action by a company. Please cite actual governmental actions. Now here I can read minds, even across the Atlantic. Don't just say Iraq. Give me examples going back 20-30 years, or even 100.

[oljackson99]

@wyleehokie trying to explain that sort of thing to an american is entirely pointless as your country has blinded you so effectively you are conditioned to disregard everything bad said about your country. if i had 10 A4 sheets i might be able to begin to explain to you

[wyleehokie]

@oljackson99

"pointless"

Interesting to make that claim. Being that I have a Bachelors Degree and two Masters Degrees (one of which is International Affairs), I would wager that I have more education than you do.

In my 40+ years on this planet, one thing I have often observed is that when someone (left or right wing) has nothing further to back their point, they resort to the classic bit of "well, I could explain it, but it would take too long and you wouldn't understand".

[wyleehokie]

@oljackson99

And.... I have seen plenty of close-minded people of all political leanings, and the argument that trying to explain your point to someone is "pointless" as the person could not possibly understand, is the sort of close-minded, intellectually superior attitude that I've encountered from many on the left over the years.

One of the hallmarks of a classically liberal society is the ability to hash out disagreements in a vigorous manner. Your statements fail that.

[oljackson99]

@wyleehokie none of that made any sence

[wyleehokie]

@oljackson99

I gather you were trying to spell "sense" and not "sence". And who exactly were you calling "thick and uneducated" earlier?

Oh - took a look at your profile and posted vids. Is the "Lowbridge Freestyle" you or a friend? Either way, don't hold your breath on hopes of a hip-hop career. What is really funny is you critique the USA and yet copy a musical style that is almost exclusively American and is not exactly known for being filled with the sharpest knives in the drawer

[oljackson99]

@wyleehokie that video was made 6 years ago and uploaded about 5 years ago when i was 16. it was a complete joke we bullied our mate into doing a stupid freestyle. i wouldnt read too much into that pal. glad you enjoyed it though anyway. check out me hitting my mate with a lightsaber as well and see if you can relate that to modern politics as well...

[wyleehokie]

@oljackson99

And if you took the time to look at my profile you would see that yes I am an American.

[tardskii]

@oljackson99 Actually, technically, "math" is correct. Americans get lots of words, idioms, and sayings from English, and do often mangle them in the process - but in this case, we are in the wrong with "maths".

[yatter1]

@tardskii According to the OED, the only source I would take notice of, "maths" is perfectly correct, I just checked.

[tardskii]

@yatter1 Shocker as Oxford English Dictionary prefers to use the English version of a word.

[MsMoneySterling]

@pcmacdoctor

Australians and New Zealanders use it too. It seems that only Americans and Canadians use the wrong term.

[gjozefi]

Science is great and everything but it's nothing amazing or spectacular. The equations don't really reveal anything about the nature of the universe. You're only converting the behavior of gravity between any object in the universe into numbers. The math doesn't explain what gravity actually is.

[highestsettings]

@gjozefi MathS, it's fucking plural. Do you say mathematic? No you say mathematics, so why say math? Also it doesn't explain what gravity is, it explains how gravity works.

[gjozefi]

@highestsettings Ok there grammar nazi. Go take a valium.

[highestsettings]

@gjozefi Well done you also completely disregarded my other comment. You thick fuck.

[IHAZZ3RI]

@gjozefi

Gravity is the nature of any two masses to attract eachother with a force proportional to the product of the masses and inversely proportional to the square of the distance. You can't define gravity any other way. Gravity IS this force. It's actually the weakest force there is if you can believe it. Everything else is stronger.

[ilikebeubz]

@gjozefi leme theorize this one

[ilikebeubz]

@gjozefi gravity is - ok so we know all things are made of waves and i think those waves are caused by another dimension apearing in our space and they flip in on each other to make atomic structures because of the strong nuclear force. When you break the atom or make it release parts the waves come out in strght lines. Ok so, gravity is somthing to do with LIGHT

[ilikebeubz]

@ilikebeubz this would mean that waves caused from another dimension are actualy just ripples in teh fabric of this dimension, so the waves and therfore the atoms and matter are made from teh fabric of the space spun in onitself into atoms

[ilikebeubz]

@ilikebeubz when a light wave dissipates it just means that the space is being ironed out again

[seekerDeLaSouth]

How fascinating, science.