Tyler Csatari on MSN

How I built an oxygen mask to become superhuman

After a friend asked how to run faster, the solution wasn’t altitude training — it was the opposite. This custom-built oxygen ...
Morning Overview on MSN

Diesel subs run underwater without air: Here’s the wild trick

Modern diesel submarines seem to break a basic rule of engines: they keep moving underwater even though diesel power needs oxygen. The trick is that these boats are really two propulsion systems in ...