Scientists in Germany have developed a candy that doesn't cause cavities.
11
In zero gravity, a candle's flame is round and blue.
16
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
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
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199