Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Research indicates that plants grow healthier when they are stroked.
173
The force of a suction cup is calculated using F=AP.
15
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
One cubic foot of gold weighs more than 1,200 pounds!
78
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3