Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
A ball of glass will bounce higher than a ball made of rubber.
73
According to studies, men change their minds two to three times more often than women.
72
One cubic foot of gold weighs more than 1,200 pounds!
78
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
The storage capacity of human brain exceeds 4 Terrabytes.
140
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5