How cosmic rays help us understand the universe - Veronica Bindi
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View full lesson: http://ed.ted.com/lessons/how-cosmic-rays-help-us-understand-the-universe-veronica-bindi 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.
Comments
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our galaxy in universe is as difficult to detect as my comment on the internet
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darkness is made up of particles. which is antimatter of light
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I wish they talked about how the cosmic rays can be dangerous
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GREAT video.
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Hey hey wait a second..... 2:23.....then it may even trigger nuclear fusion....Right?
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I'm confused, I thought magnetic fields could only alter the direction a charged particle is moving rather than accelerate it.
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Could we use cosmic rays as a source of energy?
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How could Cosmic Rays have been discovered in 1912 by Victor Hess if Nikola Tesla PATENTED the "Apparatus for the Utilization of Radiant Energy" in 1901 stating that it produces energy by being impinged upon by "ultra violet, cathodic, & Roentgen Rays" from the sun as well as other sources in the galaxy. This patent was filed long after Nikola Tesla's discovery of cosmic rays, he has made numerous references to that exact terminology prior to 1912. Just another case of misinformation about inventions and discoveries that are rightfully Nikola Tesla's. Let me guess, you think Marconi invented the radio too, huh?
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1K like = me:-)
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great animation!
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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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Hello, i am currently reading a book about the greatest physicians.
The cosmic background radiation, so the book says, was found by an american engineer called Karl Janksy.
Apparently he acted in a mission of Bell Telephone Laboratories to find the disturbance for their transmitted signals. this was 1932. What do you think about this? (source: Eine kleine Nachtphysik, by Wolfgang Rößler [i´m from Germany])
With best regards -
0:11 "The hubble telescope has enabled us to see objects in space as far as 13 billion light years away"
Wait just one second. That is very wrong. Literally pre edwin hubble wrong. The edge of the observable universe is about 46 billion light years away, not 13 billion! You comepletely forget about the expansion of space, the very discovery hubble is famed for!!
All credibility lost almost instantly.
For shame...! Thumbs down. -
:O
the animations get better everytime
whose behind them :O -
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!
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What is the difference between anti-matter and dark matter?
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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
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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? -
I always thought that extraterresterials get their flying ships because they have access to undiscovered matter that is abundent on their planet or moon(s).
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