Balsa wood is classified as a hard wood!
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Iron weighs more after it rusts.
16
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Out of all the senses, smell is most closely linked to memory.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21