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New Video: Death From Space – Gamma-Ray Bursts Explained (Patreon)

Published:
2016-07-31 17:34:20
Imported:
2021-02

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Death From Space - Gamma-Ray Bursts Explained

Use the URL: http://www.squarespace.com/nutshell for 10% with a new website and support this channel. Also make your life easier. Thanks a lot to Squarespace for supporting the show! There are cosmic snipers firing at random into the unvierse. What are they and what happens if they hit us?

Comments

Anonymous

Anyone else love the new title sequence?

Anonymous

Nice work, great animations about gamma ray burst. :-)

Anonymous

Loving every new video! Keep up the good work!

Jesse Thompson

False Vacuum, anybody? :>

Alex Kyriacou

Amazing video guys, but one big inaccuracy. Gamma rays aren't absorbed by the Ozone Layer the way UV light is. Gamma rays are absorbed by the atmosphere primarily via a process called pair production. The gamma ray photon spontaneously turns into an electron-positron pair (positron is an anti-electron). The electron and positron interact with electric fields from the surrounding air molecules, get decelerated and emit photons (hence losing energy). These new photons then pair produce in turn, and this process continues anew, the number of 'daughter particles' doubling at each stage. From a single gamma-ray photon you get billions of high energy particles cascading down the atmosphere in an 'air shower'. They increase in number until the particles reach an energy threshold where they lose all their energy by ionising the surrounding air, and the shower dissipates. Astronomers actually observe the highest energy gamma rays by measuring the showers they cause in the atmosphere and trying to reconstruct the energy and direction of the original gamma-ray photon. Lowering energy gamma-rays are measured by satellites directly (i.e. the Fermi Space Telescope). Basically the gamma-ray absorption (aka attenuation or extinction) is proportional to the amount of atmosphere it passes through, it's not dependent on any specific layer. UV light is absorbed completely differently, the UV photons hit ozone molecules and their energy goes into breaking up the ozone (ozone is a molecule made of 3 oxygen molecules 03) into an oxygen molecule (O2) and a free oxygen ion (O+).You were correct through in saying that a gamma-ray burst could destroy the ozone layer and leave the Earth's surface exposed to life-killing UV radiation.

Alex Kyriacou

Would love to see a video about Quasars, or Gravitational Waves or Star Formation or Neutrino astronomy or just astro stuff in general. Sorry, I just love all this stuff

Anonymous

Gamma Rays are absorbed by Earth's atmosphere. The atmosphere filters out the high energy rays so the gamma rays never reach us and cause damage.

Thomas Boys

If you're looking for something slightly apocalyptic as an idea for your next video, I've been thinking a lot recently about electromagnetic pulses (having watched the utterly terrifying "Threads" and "The Day After". It occurs to me that the damage caused by an electromagnetic pulse would be far more devestating in the information age than even the fire and fallout.

Anonymous

i wanna invite a creator. Who wants to get invited?

Anonymous

Hey if you are looking for an idea for a new video explain neutrinos because there are no good videos explaining them

Anonymous

How about quantum mechanics as an idea?:-)

Anonymous

do you have any advice on how to grow a science channel?

Anonymous

becuase i could really use some tips from you

Anonymous

Beautiful film! I do Adult insult comedy CAt

MRLTAA

Hello guys I am too is a creator this is the link of my page <a href="https://www.patreon.com/MRLTAA.....support">https://www.patreon.com/MRLTAA.....support</a> me please :)

Anonymous

Real nice

Anonymous

Cool work!

Anonymous

Congratulations for your success See my page: <a href="https://www.patreon.com/user?u=3919533">https://www.patreon.com/user?u=3919533</a>

Anonymous

Kurzgesagt you are great! i'm new here, please visit my Patreon page and maybe give me some advise. <a href="https://www.patreon.com/AndreyGaiduk">https://www.patreon.com/AndreyGaiduk</a>

Anonymous

Awesome!!!!!

Anonymous

Maybe give my page a look? Im new!

Anonymous

Maybe give my page a look? Im new!

Anonymous

<a href="https://patreon.com/user?u=4208491">https://patreon.com/user?u=4208491</a>

Anonymous

Stop advertising your shit on other people's pages. Fucking asking for a handout like stupid Nikki here, go fuck off, you fucking drop kick

Anonymous

everyones looking for a fucking free handout for doing shit, at least have a talent at something like andrew. fucking pisses me off you fucking dropkick dole bludgers. i hope patreon deletes your page

Anonymous

Nice video.

Anonymous

good work!!

Anonymous

You're the animator(s) of these videos, I've seen so many of these and loved each an every one of them!

Anonymous

Great work on that.Hey Kurzgesagt and other patreon people. I am beginning on this site. I love taking pictures. I was hoping you guys could check out my account and maybe get me my first patron! Any amount helps. Thanks.

Anonymous

Love it

Anonymous

this is legit , high quality

Anonymous

very interesting

Anonymous

Interesting

Anonymous

That is so Awnsome laser beam like that actaully pretty cool.

Anonymous

Hi there! liked your Page. I'm also creating GAMES/MUSIC/TATTOOS/3D ART/COMICs/ANIME . check my page <a href="https://www.patreon.com/VigdaroV">https://www.patreon.com/VigdaroV</a>

Denise Fonseca

Just had to share...great animation...great info!

horace zheng

Kurzgesagt I subscribe to your youtube channel.

Anonymous

please see here movie : <a href="https://www.patreon.com/mamax">https://www.patreon.com/mamax</a> <a href="https://www.facebook.com/MOVIEamro/" rel="nofollow noopener" target="_blank">https://www.facebook.com/MOVIEamro/</a>

Anonymous

<a href="https://www.patreon.com/Ellina">https://www.patreon.com/Ellina</a>