The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A ball of glass will bounce higher than a ball made of rubber.
73
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Iron weighs more after it rusts.
16
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3