weak

Crazy way to “weak”

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Crazy way to "weak"

There are 64 genetic combinations (43), because there are four bases arranged in threes. Each of the three codons code for one amino acid, of which there are 20 commonly used in proteins. This difference of 64 versus 20 is called degeneracy, and it has always been a mystery. Some amino acids have a single … Read more

‘This sounds weak’: how the satellite hit chain can get out of control

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'This sounds weak': how the satellite hit chain can get out of control

For hundreds of thousands of years, Earth’s orbit has been a vast and empty space – free from the impact of busy humans below, scurrying around on the surface of the planet. But in 1957, Soviet Union scientists achieved a historic breakthrough, sending a metal ball with four radio antennae – called Sputnik – so … Read more