One 75-watt bulb gives more light than three 25-watt bulbs.
57
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The storage capacity of human brain exceeds 4 Terrabytes.
140
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
A ball of glass will bounce higher than a ball made of rubber.
73
German chemists made a replica of a trophy the size of one molecule.
68
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42