Iron weighs more after it rusts.
16
Iron weighs more after it rusts.
68
Aluminum used to be more valuable than gold!
84
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
One barrel of petroleum holds 42 gallons.
20
One 75-watt bulb gives more light than three 25-watt bulbs.
57
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Cold water weighs more than hot water.
93