At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The storage capacity of human brain exceeds 4 Terrabytes.
140
4.5 pounds of sunlight strike the Earth each day.
27
German chemists made a replica of a trophy the size of one molecule.
68
Sound travels fifteen times faster through steel than through air.
134