How cosmic rays help us understand the universe - Veronica Bindi

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TED-Ed

TED-Ed

9 жыл бұрын

View full lesson: ed.ted.com/lessons/how-cosmic-...
We only know 4% of what the universe is made up of. Can we also know what lies beyond our galaxy ... and if there are undiscovered forms of matter? Luckily, we have space messengers - cosmic rays - that bring us physical data from parts of the cosmos beyond our reach. Veronica Bindi explains what cosmic rays are, and how they transmit information about our universe from the great beyond.
Lesson by Veronica Bindi, animation by TED-Ed.

Пікірлер: 61
@sooooooooDark
@sooooooooDark 9 жыл бұрын
:O the animations get better everytime whose behind them :O
@BeCurieUs
@BeCurieUs 9 жыл бұрын
Interesting fact, many cosmic rays travel so fast, that time dilation becomes very important. Certain particles decay very rapidly, more rapidly than would be allowed to reach us. However, time dilation allows things like solar muons to reach much lower in earths atmosphere than would be predicted by their half live (or more accurately, their mean lifetime), speed and distance from the earth. Just once more interesting confirmation to the laws of relatively and their interaction with things you don't normally thing of, like radioactive decay!
@ankitdubey9310
@ankitdubey9310 7 жыл бұрын
our galaxy in universe is as difficult to detect as my comment on the internet
@BestFitSquareChannel
@BestFitSquareChannel 9 жыл бұрын
dumb-founded… revel in your wonderful lessons… eager to view them, which I do upon receipt of your notice… this is among those which inspire me… homo sapiens are creative, problem solving organism par excellence… delighted to hear a women's voice… being a dad of a extraordinary daughter (bias acknowledged), long time advocate of women's rights, et al, this pleases me to no end… keep up your superb work… it contributes to humankind positively… best wishes… Manuel
@seishi9860
@seishi9860 7 жыл бұрын
I wish they talked about how the cosmic rays can be dangerous
@giantdwarf5018
@giantdwarf5018 4 жыл бұрын
Luckily, if you don't fly on airplanes much they don't pose any real danger. I think we should be worried more about UV radiation rather than cosmic rays :)
@Owlzz_
@Owlzz_ Жыл бұрын
It depends of how much energy it carry
@StermaPerma
@StermaPerma 7 жыл бұрын
GREAT video.
@pablocarlos.budassi
@pablocarlos.budassi 9 жыл бұрын
great animation!
@ShmankyTube
@ShmankyTube 9 жыл бұрын
0:13 _”The Hubble telescope has enabled us to see objects 13 billion light years away.”_ - Is this correct? Not 46 billion light years away due to the expansion of the Universe faster than the speed of light?
@ShmankyTube
@ShmankyTube 9 жыл бұрын
Minh Phúc Trịnh All I've heard indicates that the Universe has been expanding faster than the speed of light for its entire lifetime.
@sohamgurav7713
@sohamgurav7713 2 жыл бұрын
These Rays can also flip a bit in a processor, which can cause a life changing event or even sys crash for windows
@hd_gaming1325
@hd_gaming1325 4 ай бұрын
Are cosmic rays and cosmic dust the same thing? From my current understanding, cosmic rays are radiation from stars, like our sun. Even the big bang left a lot of cosmic radiation. But cosmic dust consists of the particles mentioned in the video above that gravity pulled together to form stars, planets, etc. Am I right or wrong? Or if my understanding just needs a few adjustments, let me know. I'm very curious.
@i-ate-bread
@i-ate-bread 2 жыл бұрын
veritasium
@mariyasheikh2133
@mariyasheikh2133 8 жыл бұрын
I'm confused, I thought magnetic fields could only alter the direction a charged particle is moving rather than accelerate it.
@afz902k
@afz902k 7 жыл бұрын
The acceleration happens when the charged particles pass through the expansion zone of a supernovae blast in the same direction as the blast. The magnetic fields can continue changing the particle's direction so that it crosses this threshold several times, each time accelerating it a little until it can escape completely at a very high speed.
@silkthyme
@silkthyme 9 жыл бұрын
What is the difference between anti-matter and dark matter?
@Coppertunes
@Coppertunes 9 жыл бұрын
csep10.phys.utk.edu/astr162/lect/cosmology/antimatter.html
@duckiebee2831
@duckiebee2831 9 жыл бұрын
Great lesson but, I wonder why we humans want to know how the universe will start and will end, when really we have no clear idea of how our civilisations were only thousands of years ago. We have no idea how /what our 'end' will be either, so why look past ' human heritage ' (ancient civilisations) ' Personally I'd like to know old traditions.
@snes09
@snes09 9 жыл бұрын
***** Someone has been on the dark side of youtube.
@duckiebee2831
@duckiebee2831 9 жыл бұрын
+Tyhunte You misinterpreted my comment, I was just saying how I'd like to know more about ancient civilisations. History isn't very clear, we are only taught the same things; 1066, Christopher Columbus, monarchy, things like that when really there is so much more. Yes I have heard of history, I go to school.
@duckiebee2831
@duckiebee2831 9 жыл бұрын
Sorry about the misunderstanding!
@the1andonlytitch
@the1andonlytitch 9 жыл бұрын
Duckie bee Human history is a bit more problematic in ways because it is impossible to study it subjectively, when ever people study history they will always bring in some presentism whether they want to or not and plus humans are totally unpredictable but in general we do know a fair bit about our history
@Markus9705
@Markus9705 9 жыл бұрын
You forgot that most of the radiation on the surface actually comes from the rock within it.
@adityavirendra7630
@adityavirendra7630 8 жыл бұрын
Hey hey wait a second..... 2:23.....then it may even trigger nuclear fusion....Right?
@AG-hs3yt
@AG-hs3yt 7 жыл бұрын
Aditya Virendra they do, in fact it's mainly through cosmis rays that radioactive elements appear on earth ( eg: radioactive isotope Carbon 14, the one used to date wooden objects in archeology, comes from collision of cosmic ray atoms )
@ghyeo.ng_
@ghyeo.ng_ 4 жыл бұрын
3:35 한국어 자막 유해여부가 아니라 물질-반물질 입니다
@dbakhalid176
@dbakhalid176 3 жыл бұрын
somethings happen in antarctic, protons was detected from ice not from sky
@AnimeshSharma1977
@AnimeshSharma1977 9 жыл бұрын
so we only know 4% of what we know ;)
@abc-dx3dd
@abc-dx3dd 3 жыл бұрын
The only ray I know is X-ray. Lol😂
@ankitdubey9310
@ankitdubey9310 7 жыл бұрын
darkness is made up of particles. which is antimatter of light
@giantdwarf5018
@giantdwarf5018 4 жыл бұрын
no? lol
@CaliforniaMISC
@CaliforniaMISC 9 жыл бұрын
617000000 mph what is that?
@downfall96
@downfall96 9 жыл бұрын
671,000,000 miles per hour, the speed of light.
@ABitOfTheUniverse
@ABitOfTheUniverse 9 жыл бұрын
670 616 629 miles per hour Miles are an archaic form of measure for distance, much like the Greek _stadia_ and the Roman _millarium_. They were phased out of use by all but the most primitive cultures many years ago.
@Markus9705
@Markus9705 9 жыл бұрын
The speed of light.
@Silverizael
@Silverizael 9 жыл бұрын
ABitOfTheUniverse I see what you did there. ;)
@askar_412
@askar_412 3 жыл бұрын
Privet
@askar_412
@askar_412 3 жыл бұрын
Poka
@asherstribe5695
@asherstribe5695 3 жыл бұрын
The lisp is ear PIERCING!!!!
@HigherPlanes
@HigherPlanes 9 жыл бұрын
DMT
@HigherPlanes
@HigherPlanes 9 жыл бұрын
carpo719 they need to legalize it
@HigherPlanes
@HigherPlanes 9 жыл бұрын
carpo719 Its illegality hasn't stopped me from doing it or sourcing it, but I was thinking that if more scientists tried DMT, they would discover that understanding the whole of reality is a pointless undertaking. It's like when you do DMT and when you're back you try to express your trip but it's difficult to put into words because sometimes there aren't any fucking words to describe what you experienced? Well, that's kind of how reality is. We can understand bits of it, but you can'd describe reality in humans words, it's for chaos and mathematics. And even the math is incomplete.
@HigherPlanes
@HigherPlanes 9 жыл бұрын
carpo719 Well it's pointless in so far as to think we can actually do it- that is, understand everything- but that's not to say that we shouldn't try. We're curious by nature so we'll do it regardless. I don't know, I think that if a scientists who's intelligent, open minded and not so full of himself tried it, he might be humbled by the experience, and if he's an influential and powerful kinda fella, maybe he can pull some strings, change some policy... but I digress, I'm too much of a dreamer. You are right though, some of us are explorers, some of us are not. BTW- how pure can you get with your recipie?
@HigherPlanes
@HigherPlanes 9 жыл бұрын
carpo719 Hmmm, I'm jealous :-). I can get almost 98% pure stuff, or so they claim, but it's risky business. I remember seeing a video about it on here, and I gave the book a quick scan, but never actually read it all the way through. I have quite a few books on the topic- not just DMT- but entheogens in general. I found out about DMT how many of us found out about it I think, through TM.
@HigherPlanes
@HigherPlanes 9 жыл бұрын
carpo719 I'm def gonna finish reading it. I'm curious, do you do DMT solo and do you break through every time?
@jarmengolalbanell
@jarmengolalbanell Жыл бұрын
Wien is the German language name for Vienna, the city and federal state in Austria... not Wein!
@algill333
@algill333 9 жыл бұрын
Not to be mean, but that emphasis on 'ssss' at the end of almost every word from the narrator was very annoying.
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