Long-time Slashdot reader fahrbot-bot quotes Live Science: When you touch a hot surface, you’re feeling movement. If you press your hand against a mug of tea, warmth spreads through your fingers. That’s the sensation of billions of atoms banging together. Tiny vibrations carry thermal energy from the water to the mug and then into your skin as one molecule knocks into…
Tag: vacuums
Dusty vacuums may be astronauts’ biggest health risk
Human lungs have proven to be remarkably adaptable to life in space, but dust may their biggest challenge, even greater than the lack of gravity, according to a leading aerospace medicine expert, writing in the Medical Journal of Australia. Source: https://phys.org/news/2019-09-dusty-vacuums-astronauts-biggest-health.html…