The smell of freshly cut grass is actually a plant distress call.
31
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Diamonds can be shattered with a hammer.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
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