24 AUG 2014 by ideonexus

 How Metric Measurements Relate

In metric, one millilier of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to ehat up by one degree centigrade--which is 1 percent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. Whereas in the American system, the answer to "How much energy does it take to boil a room-temperature gallon of water?" is "Go fuck yourself," because you can't directly ...
Folksonomies: measurement metric standard
Folksonomies: measurement metric standard
  1  notes
 
08 FEB 2012 by ideonexus

 The Earliest Account of Newton and the Apple

In the year 1666 he retired again from Cambridge... to his mother in Lincolnshire & whilst he was musing in a garden it came into his thought that the power of gravity (wch brought an apple from the tree to the ground) was not limited to a certain distance from the earth but that this power must extend much farther than was usually thought. Why not as high as the moon said he to himself & if so that must influence her motion & perhaps retain her in her orbit, whereupon he fell a c...
Folksonomies: gravity newton moon apple
Folksonomies: gravity newton moon apple
  1  notes

Includes the fact that he extended the force pulling the apple to the ground up to the moon.