One 75-watt bulb gives more light than three 25-watt bulbs.
57
The sun is 330,330 times larger than the earth.
75
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Each day, up to 150 species of life become extinct.
-23
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0