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?
Thanks Tank Tumblr: http://thankstank.tumblr.com
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 ;)
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.
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.
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.
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!
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. ...
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
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.
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?
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.
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.
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.