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
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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?
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.
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.
nature didn't figure it out. If you've ever seen kudzu climb up a telephone pole and cross a road you might think it was smart, but if you have enough time and resources to try every possible combination then you don't need to be smart.
There is a difference between a diffuse reaction in one part of the globe <ith a loooong time passing by to diminish the byproducts of nuclear fission, and hundreds of nuclear reactor working on very concentrated fissile compounds and making wastes that we don't know what to do with.
I'm not so much of a greenpeace militant (not at all i would dare to say), but i like to put things straight. Every energy creation process is polluting, that is something that everyone has to aknowledge. Nuclear, oil, coal, windmills, solarpanels... Every single one has big issues regarding to our environment. Don't diminish it, don't ignore it.
Eh ......... I think your stretching a good bit on this one. Not saying it couldn't or wouldn't happen. But honestly I think someone just missed read it a little. And as a human always does it needs to explained and rationalize because it just does. Where did the irradiated water go? Please at least answer that for me. I know you read these. What happened to the radiated water? Will not thumbs up or down until answer/consensus has been obtained.
It's a bit hard to answer where exactly it went. Hydrothermal fluids are difficult to track if the don't leave something behind. And maybe that's what happenned with some of the radio-elements contained in the water. It has been deposited somewhere else, at depths we are unable to detect. Also, the process took a very long time, the water was not as irradiated as the one you may find in nuclear reactors. Which means that when it travels a bit, the "pollution" dilute. Even more when it is able to reach the sea.
There is another one of these in France and there is good evidence to suggest members of the fuger dynasty were shown this place and studied it , leading to some of the first understandings of synthesis and nuclear science . The history of Rennes should reveal these little know acts to any who are interested in substantiating it .
Well, unless you believe in the rediculous woo called "Water Memory", water hardly becomes radioative just because it's cooling a reactor.
Maybe you're asking about what happens to any radioactive materials that could possibly by carried away by water?
Actually, it was the preflood generation of people, way back in Noah's day, who were aided by the fallen angels and the nephilims,produced this nuclear reactor for producing preflood nuclear technology or even preflood nuclear weapons for nuclear wars. I totally believe advanced civilization existed before the great deluge. Of course the flood wiped out their advanced sciences and maths leaving nothing behind, but buried deep underneath tens of thousands of feet under the continental shelves.
A serious question for you. I know I could google this, but...
When Hahn and Meitner realized the splitting of the Uranium nucleus, why was Ba found? Ba is an excellent reflector of x-rays.
Another thing about U fission I want to know more about, are the seven transuranic elements. But Ba isn't one of them. Any answers or links to publicly released research(peer reviewed please), would be very helpful.
An aside, I am really enjoying learning and relearning all knowledge passed on within this medium.
Keep up the good work.
sooo if a nuk falls into the ocean it won't go off? just heat the water... and what about power stations why do that use all of that graphite? well side show this was interesting.. you do a good job of telling the story I do enjoy it.. despite my lack of understanding..
Does anyone know why all known Uranium ore has a concentration of about 0.72% u235? This would imply that all the uranium was made at the same time in the same Supernovea about 6-7 Billion Years ago. Since the Earth is only 4-5 Billion years old, that means that, potentially, the cloud of debris the Earth formed from was hanging around for at least one or two billion years. It strikes me as possible that other, newer Uranium created in other Supernovas should have got in on the act...?
Interestingly, the Oklo reactor provided evidence that the laws of nature do not change over time. See Maurette, Annu. Rev. Nucl. Sci. vol 26, pg 319 (1976), and Shlyakhter, Nature, vol 264, pg 340 (1976), who showed that the Sumerium ratio Sm149/Sm147 is 0.02 instead of the natural 0.9 which allows us to compute the thermal neutron capture crossection of Sm149 billion years ago. It turns out that the crossection (55 +/- 5 kb) was exactly the same as the current value (55 kb) meaning that the capture resonance hasn't shifted over the past two billion years. This means (via a bit of nuclear physics calculations of ground state binding energies) that the strengths of the nuclear and the coulomb forces have not changed more than a few parts in 10^18 per year. I.e. they are constant. See Dyson, Rev. Mod. Phys, vol 51, no. 3, July 1979, for a discussion of the implications of this for the long term future of the universe. Fun stuff!
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