The average home creates more pollution than does the average car.
33
Nylon is made from coal and petroleum.
42
Cold water weighs more than hot water.
93
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Pumice is the only rock that floats on water.
14