When glass breaks, the cracks move faster than 3,000 miles per hour.
47
It takes the same amount of time to age a cigar as wine.
25
More than 10% of the world's salt is used to de-ice American roads.
54
The Band-Aid was originally made for the inventor's wife, who often cut and burned herself while cooking.
6
Passengers on the Beijing subway can pay with plastic bottles.
29
Paper money is not made from wood pulp but from cotton. This means that it will not disintegrate as fast if it is put in the laundry.
37
Tsunamis ( tidal waves ) travel as fast as jet planes.
97