How would a piano sound on Mars?
23 December 2024
A few weeks ago the following came up as a brief discussion on a facebook group:
Articles tagged with "gravity"
Never Pay an Electric Bill Again!
1 February 2005
Next time you visit the US don't miss the Museum of Unworkable Devices, the brainchild of physics Professor Donald Simanek from the University of Pennsylvania.
The Future Isn't What it Used to Be
1 February 2003
For almost half a century, it's seemed like human destiny to go into Space. When we were kids, everyone wanted to be an astronaut when they grew up. The loss of the Columbia space shuttle hasn't extinguished that dream, but it firmly reminds us that leaving the Earth behind is a very difficult thing to do. If things were just a little bit different - if our species were as big as elephants, or aquatic, or if the Earth's gravity were much stronger, it may have been impossible. As it is, raising a human being into low Earth orbit, to say nothing of going further, is a hugely expensive proposition. And once up there, the lack of gravity leads to muscle wasting and other physiological problems. Food and air also need to be brought up from the planet below.
The physics of a dowsing pendulum
1 February 1991
Dowsing, the art of searching for water or minerals using a hand-held pendulum, may really work, according to an Australian engineer. Frank Irons of the University of New South Wales has analysed the chaotic swings of dowsing pendulums. His analysis shows that diviners might be able to detect ore deposits by the variations in the force of gravity they produce (European Journal of Physics, vol 11, p 107).