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Oklo, the Two Billion Year Old Nuclear Reactor

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SciShow takes you to a uranium deposit in Africa where, eons ago, a unique set of conditions came together to form the world’s only known natural nuclear reactor. Check it out! No radiation suit required! Hosted by: Hank Green ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Thanks Tank Tumblr: http://thankstank.tumblr.com Sources:
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Текстовые комментарии (2588)
Greg Hawkins (25 минут назад)
This America, not England. State weight measurements in pounds, not kilograms.
Oliver Hoeltzle (4 часа назад)
instantly assumes aliens...
Nickie Combs (9 часов назад)
You are out of your damn mind if you think if that occurred naturally! There has been life on this planet for Millions if not billions of years. Life ends and it starts over over and over and over and it's been doing that for millions of. And I just had a shoe God nasty come out of my assy
Leif Harmsen (4 дня назад)
The planet's core is an older reactor than that. The sun is yet older and it's a sustainable fusion reactor, something we have yet to create.
Alper Bilgin (23 дня назад)
Is there a bunch of barium and krypton as byproducts here or what?
Lickorish Allsorts (1 месяц назад)
The worls’s second oldest known natural nuclear reactor, not counting the even older fusion reactor we get to look up at every day.
Coretta Hattereaux (1 месяц назад)
I loved hank during this era
Jarl Wikberg (1 месяц назад)
Calm down
multiplexed (1 месяц назад)
now there's only 63 years till Japan gets their disaster cleaned up. YaY nuclear fish for everyone!
On Your Face (1 месяц назад)
The sun!
Sam's Channel531 (1 месяц назад)
Are there any other natural nuclear reactors that are currently reacting?
Valters Plūme (1 месяц назад)
This is the closest thing that we'll ever have to a real Godzilla.
RedFlag (1 месяц назад)
Wow, pretty interesting. Great job.
Clulesskid (1 месяц назад)
Fuel. Rods..
Richard Nicholson (1 месяц назад)
Where was the geysers or the exits for the steam
Raul M. (1 месяц назад)
Way too bonkers for my brain😯😯😯
Ken Bell (1 месяц назад)
Shared with my Antinuclear friends.
Robert Bennett (1 месяц назад)
Lost technology
Staminist (2 месяца назад)
I understand we need an 'Occam's razor' when introducing a hypothesis, but WHAT IF there is more to this story?
citizenschallengeYT (2 месяца назад)
Raymond Szczepanik (3 месяца назад)
By the way the only reason I knew about Oklo. Was from a video I just watched from like the 1950s that some nuclear scientist stated that there were eight of these naturally occurring reactors kind of f up that I can only find one.
Raymond Szczepanik (3 месяца назад)
The primordial soup
Dray Wilks (3 месяца назад)
They refuse to give Africans credit.
MrSkinnyblk (3 месяца назад)
Yall want to know something ?? Yall are the only ones in history that talks about orther civilizations cultures. How can someone trust what yall be saying i mean literally yall tell everything. But not so much about the bible yall take and add mythicle things that most of the. Time there False ?? Well lets talk about jacob and eseau then you will know where we are in history then you people will know how obleak you are to other cultures. Yall are clearly described. In the bible and that spells trouble in my book according to the scriptures. I dont think yall know yalls own history 😒😒😒😒
Shiboline M'Ress (3 месяца назад)
What was the average level of radioactivity produced by the mine? Would it have posed a danger to animals?
Shiboline M'Ress (3 месяца назад)
+Rishi Behal Yeeeeup... that's what I get for hearing "million" instead of "billion". Oops... 😊
Rishi Behal (3 месяца назад)
Well animals didn't exist back then
Voldymyr Gordiienko (3 месяца назад)
However, don't neutrons hold an atom together and protons try to rip it apart?
Voldymyr Gordiienko (3 месяца назад)
Voldymyr Gordiienko (3 месяца назад)
This video provides lots of great information and really helped me with my research task.
Adam Dennis (4 месяца назад)
With that being said what are the chances the Egyptians. used it some how . Or others throughout time
Jim Woodard (4 месяца назад)
stoutdog (4 месяца назад)
What the f*ck is he talking about that my little brain can't wrap itself around, and why is it relevant?
Marek Marek (4 месяца назад)
calm down, breath, and now start to talk....slowly....
CamycaR700 (4 месяца назад)
Really interesting video, can you also do one regarding the thorium reactor please. Thanks
Ron Romejko (4 месяца назад)
Doesn't the water that you would need have to be incredibly pure to support this reaction ?. Like way more pure than is found naturally?.
Samson Sliteye (4 месяца назад)
could there be a natural nuclear explosion? is that a possibility as well? or is it simply impossible for enough uranium or other elements to collect to a high enough concentration naturally? you would still need some neutron deflectors i suppose? but this too could maybe form naturally?
Kokare Vatten (4 месяца назад)
Thats all cool and all, but what impact will this have on us? Will we start to build our reactors similarly? Or can we take any new information from this that can be applied to other parts of the nuclear science field?
Half House (4 месяца назад)
This explanation assumes that there was plenty of groundwater to control the nuclear reaction. What kind of evidence was found to support that contention about the presence of flowing groundwater?
Crusty Cobs (4 месяца назад)
Classic nerd clickbait
Trevor Reilly (4 месяца назад)
wow this is fantastic....I have to see more about this natural reaction....make another video 😀
A Singh (5 месяцев назад)
Einstein can sleep peacefully now! Poor man thought he was the first to invent Nukes! Ha! Mother Nature beat him to it !!
Siggi Pedersen (5 месяцев назад)
And the moon is made by cheese
Engineering8 (5 месяцев назад)
There's another natural nuclear reactor out there. It's called the Sun.
Rishi Behal (3 месяца назад)
They probably mean a fission reactor but the sun undergoes fusion
Jason Ware (5 месяцев назад)
that was cool. I had no idea there could be natural nuclear reactors.I wonder how all of the radiation from it affected any life that was near it.
Jess Allen (5 месяцев назад)
Why does this make me think of old faithful
Flinders Stokes (5 месяцев назад)
na dog not natural. ancient cilivisation
Controlled Strength (5 месяцев назад)
Because science and math is just created by humans to study and imitate the patterns of the universe. Therefore, patterns existed long before we even do and things like this is possible without us because we’re the one who need these patterns to exist not nature ;)
tandem compound (5 месяцев назад)
can someone handcuff this over active man
William Hutchinson (5 месяцев назад)
i thought it was the annunaki.
shyvha beauregard (5 месяцев назад)
ecologists be like "u wot negga"
Larry Blanchard (5 месяцев назад)
Serendipity IS REAL ! ! ! ! ! don't we all love it Thank you!.
Wellington Gomes dos Santos (5 месяцев назад)
Who does nature think it is to use nuclear energy without US permission? We must bring democracy to nature and overthrow this dictator whatever he may be.
News Now Baytown (5 месяцев назад)
Anyone dumb enough to believe this idioacricy
Kelvin Broder (5 месяцев назад)
But the Tinfoil Hat people... I mean the people at the website Gaia.com said it was extra-testicles... I mean extraterrestrials.
David Kelley (5 месяцев назад)
Way cool!
superferrariman (5 месяцев назад)
Life in our planet came later.... Does that mean our planet was inhabited by destroyers before that?
Zeyde8 (5 месяцев назад)
SciShow should be totally embarrassed by it's otherwise pathetic anti-nuclear stance... when will they wake up and recognize that 30% solar plus 70% nuclear is the only currently viable alternative to fossil fuels. As long as they keep hyping the solar solution as "more than a 30%" solution, they are firmly in the pockets of the fossil fuel solution.
LA without a car (5 месяцев назад)
Spread the word Boycott Americans good!
Mini Nuke81 (5 месяцев назад)
GG Next (5 месяцев назад)
It's pretty cool that nature figured out how to build a nuclear reactor before we did, and it's called the Sun.
Valters Plūme (6 месяцев назад)
Nature has a completely unlimited amount of surprises.
E (6 месяцев назад)
So just need some plutonium for a diy eh!
TrophPlayz (6 месяцев назад)
knock knock it's the united states
Itzzben (6 месяцев назад)
What the use of that thing
Third time Lucky (6 месяцев назад)
The nuclear waste from Oklo is inside Justin Bieber’s brain. He is toxic.
Abdega (6 месяцев назад)
so If I were to hypothetically perform a uranium heist, people won’t look too far into it if I make it look natural? *INTERESTING!*
Elu Fullard (6 месяцев назад)
Two billion years...that's some straight up BS
Bat Fink (6 месяцев назад)
What is magma contained by?
Cortez Hollister (6 месяцев назад)
God is amazing
trigger rydir (6 месяцев назад)
Dump Trump (6 месяцев назад)
Interesting subject, but highly annoying presentation.
AG AG (6 месяцев назад)
Yasith Disanayaka (6 месяцев назад)
Why was there a MINECRAFT advert?
Ichael Gaming (6 месяцев назад)
Actually, it turns out that the dinosaurs mined the uranium and built nuclear bombs and committed war against each other. This is why the dinosaurs died.
Braeden Tiemann (6 месяцев назад)
Pip Squek (6 месяцев назад)
2billionYr semen..
Loli4lyf (6 месяцев назад)
Ancient tech ! not even today scientist can do it
Johnny Sunday (6 месяцев назад)
Sol has that beat.
muklis alisyahab (6 месяцев назад)
LOL_amazing34v2 (6 месяцев назад)
There was no nuclear reactors 2 billion years ago Words wasnt invented yet 2 billion years ago
venbrou (5 месяцев назад)
Technically, the Earth is 4.5 billion years old. Unless you believe that the Earth is only 4000 years old, and that all undeniable evidence against that was placed by the devil to lead good Christians astray.... If you want to believe in a book full of fairy tales, then I can't help you.
trucker dan (6 месяцев назад)
Nope, it was aliens, they needed fuel to get back home.
PokiYin (6 месяцев назад)
So mother nature just wasted alot of energy . Smh stupid earth
Truong Lam Lo (6 месяцев назад)
Turns out god already wanted to nuke us all long ago
Spencer Cook (6 месяцев назад)
According to chemistry lessons, the binding of atoms together releases a ton of energy so how is this possible that splitting atoms releases energy
Tyler Amon (6 месяцев назад)
What?, Man, Nature figured out people before we have.
adamsauto89 (6 месяцев назад)
where there steam turbines that naturally sprung up to convert the heat from the reaction into electricity? if not then nature was just wasting its time ...
Jan Hanchen Michelsen (6 месяцев назад)
Radioactive decay in the earth’s crust is very common and of course natural. Of the seven mountains surrounding my hometown of Bergen, Norway contains enough uranium to maintain a core temperature far higher than the other mountains and the possibility of extracting geothermal energy from the mountain has been studied. The downside is radon intrusion into basements etc. This is a known health hazard and must be monitored.
Alan D1 (6 месяцев назад)
What happened to all the radiation left behind as from a spent fuel rod. Surely this would have killed off all life and caused poisoned groundwater., which then would have left a decimated landscape for hundreds of miles and cell deformation in all plants and animals resulting in giant lizards. Oh wait, It did. Dinosaurs!
Michelle Koh (6 месяцев назад)
woloabel (6 месяцев назад)
The Curies developed the isotopic hypothesis having measured places more energized than others across Europe mainly in the northern mountainous region of modern day Germany where there are still significant Uranium deposits. ...
mubashar qadeer (6 месяцев назад)
Dude you need to chain down your arms!!
Viper [Waffelträger] (6 месяцев назад)
Depleted Uranium? Biggest Depleted Uranium stockpile in the world?
_SECRET SQUIRREL_ (6 месяцев назад)
So what your saying is there were uranium deposits"supposedly" SUPPOSEDLY, In a mine that's actually just a hill and we're all, literally all of us are just guessing if a set of random events happened in a set of random ways Millions upon millions of years ago there was a possibility that a nuclear reaction to begin to take place possibly maybe we're about 3% sure about that definitely
Rup Ganguly (6 месяцев назад)
So nature was the first nuclear state , I guess so?
Jonathan Hughes (6 месяцев назад)
This guy is a 2 billion year old nuclear reactor my ass.
Your Local Meme Dealer (6 месяцев назад)
God dammit Aliens you dun goofed this time.
Romuland Meier (6 месяцев назад)
Actually without the natural nuclear reactions inside the earth, our favorite planet would look like mars today.
Terrae (6 месяцев назад)
There are no nuclear reactions inside our planet. There is radioactive decay yes, but no sustained reactions like fission or fusion. Also, part of why Mars is dead and cold today is also relative to its smaller size.
Steve Nichols (6 месяцев назад)
So, in theory, a natural reactor should form somewhere where the perfectly safe conditions are not present and there should be a nuclear explosion (or at least a major release of nuclear material.) Has this occurred?
Terrae (6 месяцев назад)
For the good conditions to enable a self-sustained fission reaction, you need water and oxygen to oxydate the uranium and allow it to get concentrated. No water, not enough concentration and no slow neutrons. So no fission and no chain reaction. A natural nuclear explosion or uncontrolled chain reaction cannot occur.
c0ldw1nd (6 месяцев назад)
The reaction stopping when the water starts to boil is basically a safety feature in almost all modern reactors. It's called negative void coefficient.
Mike Bready (6 месяцев назад)
Well if people believe that randomness and “nature” took particles and magically made life which randomly populated the earth and developed from fungi into humans, I guess this is slightly easier to believe.
venbrou (5 месяцев назад)
Better than believing a magical sky wizard plucked us from the dust, and then an evil magical ground wizard filled the world with fake clues to make us believe that something else happened.
Mike Bready (6 месяцев назад)
Terrae nope.
Terrae (6 месяцев назад)
You're underestimating the power of time and randomness.
Peter Diggler (6 месяцев назад)
Should be labeled "Watch an ugly geek talk about Oklo, the Two Billion Year Old Nuclear Reactor". There's nothing here worth watching. There's other vids that actually tell you how it works without the ugly asf geek boi freaking you out.
Delkor (6 месяцев назад)

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