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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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...?
4:07 Nature found out how to build a nuclear reactor that cannot meltdown and which keeps the waste already trapped in rocks. Maybe we ought to follow it's example. It doesn't even require control rods and it stops as soon as it runs out of coolant. Boy, do we suck in comparison.
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!
The earth is roughly 4 billion years old, the evidence for this is the radiometric age-dating of meteorite. Using another example, the radiometric method and the measurement of lead found in uranium-rich mineral, found that Zircon, the oldest of these minerals, is 4.404 billion years old.
Worlds first fission reactor will open in France in 2025. Planned in the 1980s. So with technology to build fission plants why did we keep building fusion plants?
And narrator wear a white shirt and open a couple buttons, it will help so you dont look like you are on big bang theory
The waste products are ridiculously short-lived by comparison to how long ago the reaction took place.
The Strontium-90 and Cesium-137 waste has a half life around 30 years, and Plutonium-239 has a half-life around 24'000.
The Oklo reactor is 2 *billion* years old. There would be so little waste left by that point you'd barely be able to detect anything, other than the stable left-overs from the radioactive decay.
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