Pollen can travel up to 500 miles in a day.
40
Passengers on the Beijing subway can pay with plastic bottles.
29
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
Babies are born without knee caps.
78
68 percent of a Hostess Twinkie is air!
37
If you counted 24 hours a day, it would take 31,688 years to reach one trillion!
44
30 years ago, you could buy a lifetime, unlimited first-class travel pass with American Airlines for $250,000.
14