Including why you shouldn’t pee in the pool.
There's an actual scientific reason you shouldn't pee in the pool.
Chemicals in urine interact with those in chlorinated water to make two toxic chemicals: trichloramine and cyanogen chloride. But they're made in such a tiny amount they've very very unlikely to do any damage.
pojoslaw
It's surprisingly easy to convince people their hands are made of rocks.
The researchers explain: "We repeatedly gently hit participants' hand with a small hammer, while progressively replacing the natural sound of the hammer against the skin with the sound of a hammer hitting a piece of marble."
After the experiment participants rated their hands as stiffer, heavier and less sensitive.
superpohn
It's possible to revive a 30,000 year-old giant virus hidden in Siberian permafrost.
OK, so "giant" is relative – the virus measure's just 1.5 microns in length and 0.5 microns in diameter. It's still active, but doesn't appear to be able to infect humans or animals.
Image courtesy of Julia Bartoli and Chantal Abergel, IGS and CNRS-AMU.
Sixty-six million years ago there was a dinosaur that was basically a "chicken from hell".
It had a body over 10ft long and huge, sharp claws. A typical human stood next to it would come up just above its hip.
Mark A. Klingler, Carnegie Museum of Natural History
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