Iron weighs more after it rusts.
68
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Cold water weighs more than hot water.
93
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Nearly 50% of the world's scientists are assigned to military projects.
71
According to studies, men change their minds two to three times more often than women.
72
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39