How do humans breathe in space?

Humans can only live comfortably in a small variety of places. We can’t live underwater. Or higher than a certain altitude, where there is too little oxygen. We can only live in a very small slice of the atmosphere, from sea level up to 3-4000 m. If you think about it, the human habitable zone is really tiny, especially when compared to how big the universe is. Yet, we can fly on planes at much higher altitudes, survive underwater for months at a time in a submarine and at any moment there are one or more scientists aboard the International …

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Bell Rock Lighthouse – A stone tower in stormy seas

The oldest surviving sea-washed lighthouse, the Bell Rock Lighthouse is a triumph of engineering and persistence. There is a reef, off the coast of Scotland, called Bell Rock. Legend has it that an Abbot, in the 14th century, managed to install a giant bell on the reef, warning seafarers of the danger. However, a dutch pirate stole the valuable brass bell just one year after it was installed and ironically perished when his ship hit the then-unmarked rock some time later.