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
Only humans shed emotional tears.
331
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
Coins usually survive in circulation for about 30 years.
66
The Band-Aid was originally made for the inventor's wife, who often cut and burned herself while cooking.
6
The largest diamond ever found was an astounding 3,106 carats!
99
People spend about two weeks of their lives at traffic lights!
159
160 cars can drive side by side on the Monumental Axis in Brazil, the world's widest road.
39