The only letter not appearing on the Periodic Table is the letter "J".
180
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Aluminum used to be more valuable than gold!
84
A ball of glass will bounce higher than a ball made of rubber.
73
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Iron weighs more after it rusts.
68