Iron weighs more after it rusts.
68
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
4.5 pounds of sunlight strike the Earth each day.
27
Research indicates that plants grow healthier when they are stroked.
173
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Most dust particles in your house are made from dead skin!
67
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108