Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
Diamonds mined in Brazil are harder than those found in Africa.
40
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
It takes 492 seconds for sunlight to reach the Earth!
44
American car horns beep in the tone of F.
66