Research indicates that plants grow healthier when they are stroked.
173
For every gallon of sea water, you get more than a quarter pound of salt.
45
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The average home creates more pollution than does the average car.
33
One 75-watt bulb gives more light than three 25-watt bulbs.
57
A ball of glass will bounce higher than a ball made of rubber.
73
One ragweed plant can release as many as one billion grains of pollen!
51