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222 results
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Hot temperature
When Anders Celsius first put his temperature scale together he had it in reverse: 0?C was the boiling point of water and 100?C the freezing point. The scale wasn’t changed to how we know it today until after he died.
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Statistics
As a student, George Dantzig solved two famously unsolved statistical problems by accident. He copied them from a blackboard thinking they were homework, and solved them in a few days.
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Don't eat your greens
Green potatoes are poisonous. When they are exposed to light, potatoes start to produce both chlorophyll and solanine, and although the chlorophyll is harmless, the solanine can cause stomach pains and sometimes hallucinations.
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Bamboo
Bamboo is the fastest growing woody plant in the world: you can almost see it grow at around a metre in a day.
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Cow emissions
Methane emissions from livestock - burping and farting cows, sheep and pigs - contributes significantly to climate change. If you include the impacts of feeding and transporting them they account for 18% of CO2 emissions - more than transport.
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Very crude oil
Scientists have genetically modified bacteria so they excrete carbon-negative crude oil - more carbon dioxide goes in than comes out. The bacteria feed on wood chips and ferment it, like yeast fermenting sugar into alcohol.
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The human zoo
Around a million bacteria live on each square centimetre of human skin. Bacteria cells - both inside and out - outnumber our body cells by ten to one.
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Do I nose you?
Smells bring back stronger memories than either sight or sound. The part of the brain which processes smells is closely linked to the parts used for memories and emotions.
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Achooo!
About a third of people sneeze when they look at bright sunshine. Signals from the optic nerve may get crossed with signals from the trigeminal nerve - which tells the brain that something is irritating the nose - and so fooling the body into sneezing.
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Deafening
As well as damaging your hearing, very loud music can cause your lungs to collapse. The vibrations from the music can cause air to leak into the space between the lung and the membrane covering it, making the lung deflate.
