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Deep Fission Plans to Sink Nuclear Reactors Deep Underground

By dropping a nuclear reactor 1.6 kilometers (1 mile) underground, Deep Fission aims to use the weight of a billion tons of ...

If You See a Stop Sign with Holes, This Is What It Means (No, They’re Not Bullet Holes!)

Sure enough, once I started really paying attention to road signs (um, yikes?), I did notice a few stop signs with perfectly ...