Dark Matter (extra footage)

  Рет қаралды 67,341

nottinghamscience

nottinghamscience

Күн бұрын

Пікірлер: 109
@nottinghamscience
@nottinghamscience 14 жыл бұрын
@P00P0STER0US: I sometimes find changing the framing (often by zooming) is useful when editing the final video... Gives a variety of shots and makes things less boring. Unfortunately, when you watch unedited "extra footage" like this one, it is less effective in some respects. But I still like sharing the raw stuff... No secrets with us! (as @jnthnbush explained, I just noticed!)
@BGenerous
@BGenerous 14 жыл бұрын
Dr. Gray's description of science starting at 10:37 is superb--practically worth of a video itself.
@BespokeGroupUK
@BespokeGroupUK 14 жыл бұрын
Wouldn't it make some kind of hypothetical sense that there is some kind of interconnectedness between all the gravitational fields that are in a galaxy having some kind of effect similar to that of a viscous liquid maintining the speed of rotation?
@jakkbomb
@jakkbomb 14 жыл бұрын
I think this may be my favorite Sixty Symbols so far. The first 3 minutes of the vid are such a perfect illumination of one of the fundamental attitudes of science. As Meghan continues at 10:47, the layman's skepticism "wait, did you just make that up?" actually leads to a great illustration of the scientific method. No, they didn't just "make it up", but expressing such skepticism is an integral part of learning. Top stuff.
@Nebulosation
@Nebulosation 13 жыл бұрын
Astronomy is something absolutely amazing. The more we learn, the more we're aware of how little we know of our very own home. Dark matter is an excellent example of just that. Thanks for sharing this very inspirational and incredibly informational video!
@P00P0STER0US
@P00P0STER0US 11 жыл бұрын
Why thank you! And your X is of the finest quality. Truly worthy of praise.
@DamianReloaded
@DamianReloaded 13 жыл бұрын
I'm 33 and I never finished university. This series is really making me reconsider going back to study.
@Jesusisyhwh
@Jesusisyhwh 12 жыл бұрын
10:44 I love it when a scientist will actually admit that he/she might be wrong. Too often egos get in the way of good scientific research. My respect for Dr. Gray has gone up.
@fz6734
@fz6734 10 жыл бұрын
We saw that there was a dichotomy between dark matter theory and general relativity. I have wishfully hypothesized that astronomical distances might not be as large as indicated by red shifts and that distance itself is a function of gravitational field strength. I'm not enough of a physicist to do the maths, but wouldn't it be nice to discover that the stars are indeed much closer than we thought.
@Ana_crusis
@Ana_crusis 7 жыл бұрын
they aren't though. So that's an end of that.
@pbezunartea
@pbezunartea 12 жыл бұрын
Thank you so much for your videos! I actually find MOND very interesting... my point of view is this: if all known forces have a scope in which they're valid in terms of distances (for astronomical distances, gravity is the most important; for atomic distances, the electromagnetic force; etc) why not for very long distances?
@P00P0STER0US
@P00P0STER0US 14 жыл бұрын
Thank you for the extra footage, I like the fuller version. That camera operator sure loves to zoom. Zoom in. Zoom in further zoom out. Zoom in zoom out staaaaaaaaay. Zoom in. Zoom in zoom out zoom in. Zoom out...
@pestlett
@pestlett 13 жыл бұрын
Ed Copeland needs to upload more videos, perhaps some classes like Stanford University, via Leonard Susskind, do. That would be amazing.
@HotblackDesiat042
@HotblackDesiat042 13 жыл бұрын
@AkashicViewer Look for Lawrence Krauss's lecture "Life, the Universe, and Nothing". I feel he does a pretty good job bringing astrophysics to the layman's perspective, and he answers those questions in that speech. Cheers!
@StereoSpace
@StereoSpace 14 жыл бұрын
I find it more persuasive that our or theories of gravity are wrong than most of the matter in the universe is invisible and non interacting.
@ultimaIXultima
@ultimaIXultima 11 жыл бұрын
They do maintain their velocity - the problem is that the stars on the outside of the galaxies move at the same rate as the stars on the inside. So they should be flying off away from the galaxy, yet they don't. In our solar system, Mercury moves at about 48 km/s, while Neptune only moves at about 5 1/2 km/s. On a galactic scale, they do not see the same reduction in speed with an increase in distance, so the outer stars should be "flying off" into deep space. Hence dark matter is needed.
@jnthnbush
@jnthnbush 14 жыл бұрын
@P00P0STER0US its more or less done for editing. The camera operator needs to sense the more important points and high lite them with a closer frame. When the final video is made, it is important to have these options to work with the various arguments being made. You don't see this in Live TV because, as you noticed it would be distracting, however is recorded programs, each scene has many takes with various angles and compositions for the editor to choose from.
@JeremyTaylor
@JeremyTaylor 9 жыл бұрын
I've been wonder about this a lot recently. It seemed odd that scientists were so sure about something for which there is no real direct evidence while simultaneously continuing to champion General Relativity despite the evidence against it, but this video pointed out some things that cleared it up for me a lot. Thanks!
@boboften9952
@boboften9952 4 жыл бұрын
Dark Matter Holder , Puller , Gatherer , Changer , Modifier , Of Energy State . A Stage That Allows A Form Change .
@heroncortizo1993
@heroncortizo1993 9 жыл бұрын
It's interesting that dark Matter doesn't became flat by the rotation of galaxy.
@okuma0kuma
@okuma0kuma 14 жыл бұрын
maybe galaxy shape is bunch of torus ripples and not a cylindrical disk ,were ripples move like waves pushing mass as the central core attracts mass keeping a metaphorical ! merry go round or cobweb formation
@Hewpie
@Hewpie 14 жыл бұрын
@jo7414 Nor do I, but I think it's really interesting stuff. I think the Pioneer anomaly isn't conclusive at the moment. I know what - let's ask the experts: Hey you lot at Nottingham Science - what's the verdict on the Pioneer Anomaly? Does it explain Dark Matter or anything else? And are you going to make a video on it? :-D
@P00P0STER0US
@P00P0STER0US 14 жыл бұрын
@nottinghamscience I did a facepalm once I read the comment from jnthnbush indicating it was to create a more dynamic look in the post-edit version. I should have clued in when I saw the title and the time counter in the frame, those were pretty big clues for me to miss! Thanks for the explanation :)
@wolfy9005
@wolfy9005 12 жыл бұрын
The outer stars don't really slow down because as they lose energy they fall in, and then gain energy which spits them back to their proper orbits. It happens with all the planets in the solar system, plus the moon, and (theoretically) to electrons orbiting a nucleus. The moon comes closer and goes further away and never really gets much closer to the earth, and has done for a very long time already. No orbit is perfectly spherical, not even an electrons at the speed of light(or close to).
@Methylenedream
@Methylenedream 11 жыл бұрын
Yes you are correct, I was mistaken and wrote the wrong term. I was confusing the term Hadron, which is above Baryons in particle nomenclature hierarchy because Hadron's are Baryons (3 quark composite particles) AND Mesons (2 quark composite particles). My bad. What I meant to say is that FERMIONs are all the matter particles in the standard model. Aka everywhere I said Baryon I meant to say Fermion and vice versa. I was pretty fucking high on BHO and some DANK Kush when I wrote that.
@Hewpie
@Hewpie 14 жыл бұрын
@jo7414 From what I've read the Pioneer Anomaly doesn't fit in with Modified Newtonian Mechanics model. Milgrom himself has rejected the Pioneer Anomaly as evidence for MOND. Although I'm unsure as to whether it explains Dark Matter. What's your view on it?
@StereoSpace
@StereoSpace 13 жыл бұрын
I like the longer versions.
@nottinghamscience
@nottinghamscience 14 жыл бұрын
@P00P0STER0US It's fine... I'm still pretty heavy-handed with the zooms and camera moves anyway... It's just a personal style.
@TheIdealGasLaw
@TheIdealGasLaw 13 жыл бұрын
@nottinghamscience You should do a video about what would happen if you were standing a the center of a planet!!! If you weren't burned alive or thrown around by the rotation.
@Ana_crusis
@Ana_crusis 7 жыл бұрын
Apart from the outright loonies in the comments, who are in the wrong place, there is still a huge misunderstanding going on, even among the (slightly) more rational. Don't go around discussing daft things like how it became dark " _is it possible that the electrical charge between the nucleus and electron fizzles out, which causes the particles to go dark_ " this sort of thing. 'Dark matter' is just a name given because they can't see it and haven't detected it yet ( if it exists) not because it *_really_* is dark! They could have called it anything, you need some name when referring to a concept.
@uusijani
@uusijani 11 жыл бұрын
I was left wondering how come the models we have of the birth of the Universe don't tell us about dark matter and energy being formed (and thus what it is and how to look for it). I guess it works the other way round, we need to know the properties of something before we start working out explanations of how it came to be. But then again, if something so pervasive as dark matter is real and yet missing from the current origin models, I'd expect them to make all kinds of false predictions.
@CosmicBarrilet
@CosmicBarrilet 12 жыл бұрын
thanks for up loading this kind of videos.... ! people from all around the world can get access to brilliant minds as prof coleman...tnx...:) !
@DaMav
@DaMav 11 жыл бұрын
This whole series is so outstanding. How about somebody spring for some video equipment that will do high res? This is 2013, not 2005, eh? :-)
@albertgerard4639
@albertgerard4639 5 жыл бұрын
Oh Brady
@Postghost
@Postghost 11 жыл бұрын
It's good, don't change...
@P00P0STER0US
@P00P0STER0US 14 жыл бұрын
@jnthnbush Thanks for the explanation, that makes sense.
@loserofnothing
@loserofnothing 14 жыл бұрын
if you manage to make an area to 0 kelvin where the atoms become solids, if you feel around, would you be able to feel dark matter?
@himaya6449
@himaya6449 9 жыл бұрын
Happy New Year...
@BIT1FFY
@BIT1FFY 11 жыл бұрын
Yes, Mr Brady didnt use any compression when joining the video n audio
@davidwilkie9551
@davidwilkie9551 7 жыл бұрын
Astronomers look at the Cosmological question "out there" of how the universe fits together, and Physicists are at the reciprocal end of scale. In between, chemistry and mathematics deal with functionality of the connection. So if the Cosmological structures, Periodic table of elements plus the Particle zoo demonstrate the mathematical distribution of the kind of reciprocal relationships that Dirc was interested in, would that be the Dark Matter research Dr Gray mentioned?
@MrSpinteractive
@MrSpinteractive 13 жыл бұрын
@P00P0STER0US Great camera work
@harpy83
@harpy83 13 жыл бұрын
why is it is true in the sense of stars in a galaxy that the ones towards the center of the galaxy moves as fast as the ones at the edge but in case of planetry systems the planets the farthest out from their star is moving slow compared to the ones towards the centre?
@TheUltamatium
@TheUltamatium 11 жыл бұрын
Dont zoom in on peoples faces so close.
@rhoadess
@rhoadess 12 жыл бұрын
What about the idea that gravity is entropic, what does it have to say about dark matter? see wiki on Theodore A. "Ted" Jacobson & Erik Verlinde.
@Methylenedream
@Methylenedream 11 жыл бұрын
And yes since I fucked up my reply i'll keep this one simple. You're right and he misspoke. Baryon's do not include electrons (leptons), they are only tri-quark composite particles as Jong Fuu has corrected me on. Dunno why he misspoke, that guy's pretty smart, i've listened to him in many video's. Maybe he was ripped on BHO and awesome weed like I was haha.
@regpollock313
@regpollock313 11 жыл бұрын
Is there any chance that the LHC may give us information about Dark Matter?
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
Detection of dark matter is one of the design parameters of the LHC, it's now up to full energy, let it run for a while then maybe they will make some dark matter
@chrisbryan8520
@chrisbryan8520 8 жыл бұрын
If you remove space and time calculations, would the Universe move together?
@jona5820
@jona5820 11 жыл бұрын
Hmm... no, a baryon is a particle made up of three quarks, like a proton (uud) or neutron (udd). It doesn't include leptons. So no, it is not all matter.
@ramansb1213
@ramansb1213 11 жыл бұрын
Did he say electrons are baryons, he meant leptons right? or was he just naming particles and categories?
@Neueregel
@Neueregel 14 жыл бұрын
yeah but MOND is just speculations right now. No more than String/M theory.
@PelegTsadok
@PelegTsadok 11 жыл бұрын
The newer videos are in hi-res.
@tsgillespiejr
@tsgillespiejr 11 жыл бұрын
NOTE: This is a serious question, not an excuse to have a debate about religion (like 80% of KZbin). Has anyone yet considered the possibility that the anomalies discussed herein happen to be pretty congruous with the descriptions of angels given in Islamic sources? I mean they ARE a non-volitional creation that interact in SOME way with the rest of the universe, just like the other various particles we've discovered so far. I'd love one of the professors (at least) to consider and comment!
@appelelle
@appelelle 13 жыл бұрын
@nottinghamscience actually, i like this. it makes the video more special, fun and "non-scientific" (in a good sence). more of it, brady! more!
@rThorWenzel
@rThorWenzel 11 жыл бұрын
Precisely how much dark matter is it estimated to be around the Earth? Does it contribute to Earth's gravitational field?
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
Because it doesn't emit light it doesn't collide with normal matter or itself, so the dark matter is spread out over a very large volume. The density of it in the solar system is so low it's practically not there.
@Cuthofa
@Cuthofa 14 жыл бұрын
@mcjhn Because there is a big black ball of matter there.
@wolfy9005
@wolfy9005 12 жыл бұрын
09:22 Then you have stars which are like "FUCK THIS I'M OUTTA HERE" and fly away into outer (galaxy) space. I wonder what would happen if 2 stars travelling at 1 million kph crashed into each other
@willemvandebeek
@willemvandebeek 12 жыл бұрын
Isn't time going slower in the centre of the galaxy and for that reason the stars close to the centre aren't spinning around the central black hole like crazy? Hopefully someone from the university can answer me this. *fingers crossed*
@bonanzaguy04
@bonanzaguy04 11 жыл бұрын
"A Universe From Nothing" - Lawrence Krauss /watch?v=EjaGktVQdNg A great watch if you're interested in Dark matter.
@Sophiedorian0535
@Sophiedorian0535 8 жыл бұрын
Neutrino aggregates?
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
Dark matter is very much like a neutrino, except it's a lot heavier
@Sophiedorian0535
@Sophiedorian0535 8 жыл бұрын
Hjembrent Kent :thanks :)
@dalunjohn
@dalunjohn 8 жыл бұрын
So a halo of dark matter in galaxies causes the stars to speed up. But there must also be a halo of dark matter around the solar system - there's 10 times as much of it as ordinary matter. Why does it not affect the outer planets. Why isn't Neptune going as fast as Mercury?
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
It doesn't affect the orbits of planet much because the density of dark matter is very low compared to the matter in the solar system, it's spread out over a much larger volume than the matter in the galaxy. Because it doesn't emit light it doesn't have friction, so the particles stayed in very large orbits while the normal matter compacted together
@MrSladeCintron1
@MrSladeCintron1 11 жыл бұрын
7:04 scared the shit out of me. lol
@Typho0n86
@Typho0n86 13 жыл бұрын
What if time slows down the closer you get to the center of the galaxy, the supermasive black hole in the middle
@slonamu
@slonamu 14 жыл бұрын
The time code is distracting to me...
@dit-zy
@dit-zy 11 жыл бұрын
I love your name.
@chrisofnottingham
@chrisofnottingham 14 жыл бұрын
Is there a layman's explanation for why dark matter doesn't affect smaller systems, like our solar system?
@soulvibe2007
@soulvibe2007 14 жыл бұрын
I don't have the knowledge to say if the MOND theory is right but it feel more intuitive and right but that means nothing in physics though :) I'm sure one of these clever people will get the answer soon.
@bruinflight
@bruinflight 4 жыл бұрын
BEES?!?!?!? yes bees.
@helloofthebeach
@helloofthebeach 12 жыл бұрын
What I want to know is who ate that pie.
@DavidutzAlmy
@DavidutzAlmy 11 жыл бұрын
0:44 I thought electrons were leptons
@Oneffunes
@Oneffunes 8 жыл бұрын
Dark matter is made of spiritual Adams I call it dark matter Adams I have seen it in the spirit world and I have touched it and it is solid.
@almorik
@almorik 6 жыл бұрын
oh that clears it up thanks
@iftikharanwar7159
@iftikharanwar7159 4 жыл бұрын
does it dark matter is another dimension of universe that we can not observe? 😴
@amedeofilippi6336
@amedeofilippi6336 5 жыл бұрын
When cosmologists are confronted with something “ strange “ that doesn’t fit into current mainstream , they prefer to invent something like DM instead of revisiting their previous assumptions. To compare the behaviour of external stars in galaxies to planets motion in the solar system seems to me really absurd .
@TheMessiersAndromeda
@TheMessiersAndromeda 3 жыл бұрын
You have literally no idea what you're talking about do you 😂😂😂😂
@Derederi
@Derederi 9 жыл бұрын
nottinghamscience What if dark matter is a particle with absolute zero temperature? It does not react with other particles nor emit light because it cannot, but it still has gravity. You should measure dark matter at your laser cooler experiment. ^(Do I get a Nobels prize for this idea) :-)
@SKNK5050
@SKNK5050 9 жыл бұрын
Derederi, simple temperature difference issues , an ice cube wont stay an ice cube in a desert. u might be onto something though . i don't know
@Muck006
@Muck006 9 жыл бұрын
+Derederi WHY doesnt it react with other particles? The universe is pumping lots of radiaton through the stuff, so it should be "getting some energy" from that IF it was a "simple" particle. Also: "absolute zero" only really applies to "matter particles" [=atoms] and "energy particles" do not care about irrelevant stuff like temperature. Oh and "temperature = movement" is a thing AND the universe is constantly expanding, so "absolute zero" can't really be a thing, because dark matter expands with the universe and has a speed.
@Derederi
@Derederi 9 жыл бұрын
+Muck006 OK thanks for your answer :-) No Nobel prize though? :/
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
Temperature is just the speed of the particle, it doesn't affect the interactions at all. It will still have a mass and it will still collide through the weak interaction, which is probably the only interactions dark matter has
@toxicgraphix
@toxicgraphix 8 жыл бұрын
maybe we can't see it because, because we are blinded by the light? maybe dark matter in not dark, it's just very faint matter?
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
No it's dark because it hasn't contracted together like the normal matter has. Regular atoms emit light, they collide, so they have friction. Dark matter doesn't have that, it stays out beyond the visible galaxy in large orbits. It's transparent to normal matter, and more importantly it's transparent to itself. It only interacts through gravity and what's called the weak interaction probably, similar to a neutrino, only much heavier.
@curiousgeorge1940
@curiousgeorge1940 11 жыл бұрын
Three little words that you will hear from a scientist, but never from a 'religious scholar' are : "I don't know". That singular mindset separates the 2 disciplines into a true/false battle that's been going on since Galileo's trial. - I would no more use any 'sacred text' as a science reference as using "Curious George Goes to the Zoo" as a biology textbook.
@ДмитрийБурбовский-м8д
@ДмитрийБурбовский-м8д 9 жыл бұрын
#///Е синтез выхода мозга кода///-это характеристика доступа в кодированное пространство,где уже ЕНZ-это ключ звена///сравнить в том,что вы идете по улице,а вам все вдруг уступают дорогу!.Что-то в этом смысле,ибо связь перемещения и набора,возникает в этом ключе///.Весь процесс вы видете,т.е если объект горит в пространстве,он как зеркало,если на земле в здании...он перед вашим мозгом,если же вы видете сплошной огонь-это значит сила неимоверная,и следствия будут продолжаться...Вы все контролируете,магнитная связь мозга с объектом чудовищная!!!.Но молния мысли-это за...пределами,ибо разгон происходит в мозге,и вы до разряда все видете...Можно сравнить с городом!.Вы видели здания в городе ночью?Они имеют подсветку,две,три,т.е.одна главная,а две,три подсветки подсвечивают главную...,что-то точь в точь в мозге!!!.Система квант/математ.синтеза считывает мысли мозга...и это проблема в том плане,что я очень много сил отдал на то,чтобы ,,в чем мама родила стоять перед ней",а это было невыносимо трудно ломать привычки,привязки,ибо все происходит в мозге,мозг,мозг всему глава!!!.Чистый мозг-это мозг определяющий начало!!!.Представьте,система показывает вам вашу систему в действии,т.н.прибор действия вашего мозга,перед вашим видением счёта возникает чёрная завеса и вся искрится красно/Неретвы миров ками вспышек....Это исключительно опасная ситуация,в том плане,что любая мысль осознано предлагаемая пойдёт по ЦЕПИ КОДИРОВАННОГО ПРОСТРАНСТВА В РАЗГОНЕ!!!.ПОСЕМУ,КВАНТ/МАТЕМАТ.СИНТЕЗ -ЭТО НЕ РАЗГОВОР НА ДОСУГЕ,ИБО КОГДА МОЗГ СЧИТЫВАЕТ И СИНТЕЗ ВЫХОДА ЦЕПИ ПРИНИМАЕТ,НЕЛЬЗЯ ИСПОЛЬЗОВАТЬ ЧУВСТВА,ЭМОЦИИ...#zZz#.
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
Rush B cyka
@AtomFA
@AtomFA 12 жыл бұрын
blah blah blah
@vistasolutionsllc7869
@vistasolutionsllc7869 7 жыл бұрын
Black people black soil,black birth ,roots,fruit,blossoms,melanin,answer,
@EtzEchad
@EtzEchad 8 жыл бұрын
It's sad that these guys believe in things like dark matter and dark energy with absolutely no evidence that they exist but won't believe in God. There is far more evidence for God than these other things but they refuse to acknowledge it.
@hjembrentkent6181
@hjembrentkent6181 8 жыл бұрын
lol
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