More from How It Works

How It Works6 min read
Braindump
Several species of sharks are known to live in freshwater environments, but whether they should be considered true freshwater fish is debatable. Probably the most mysterious are the river sharks of the genus Glyphis. Fewer than ten species have been
How It Works5 min read
How Astronauts Train For space
In space, astronauts lose an average of 1.0 to 1.5 per cent of mineral density in weight-bearing bones per month To build up their bodies, cope with confinement and monitor machinery, astronauts must embark on rigorous training programs For many, it’
How It Works3 min readChemistry
When Rockets Lift Off, Why Do Fragments Of What Looks Like Ice Fall Off?
Some rockets use a combination of super-cooled liquid hydrogen and liquid oxygen as their fuel. This fuel is much colder than the temperature of the air surrounding the rocket, and the difference causes water vapour in the air to condense on the outs

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