No matter how cold it gets, gasoline will not freeze.
107
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound at the right vibration can bore holes through a solid object.
134
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
One 75-watt bulb gives more light than three 25-watt bulbs.
57