One barrel of petroleum holds 42 gallons.
20
Research indicates that plants grow healthier when they are stroked.
173
Out of all the senses, smell is most closely linked to memory.
146
German chemists made a replica of a trophy the size of one molecule.
68
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Pumice is the only rock that floats on water.
14
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21