Out of all the senses, smell is most closely linked to memory.
146
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Most dust particles in your house come from dead skin.
48
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5