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**Thread of little facts & things**....3

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Found this on twitter! Difference between breathing apparatus of mammals, birds and insects.

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22 minutes ago, mullethunter said:

Well done NASA, SPACE-X, Bob and Doug - safety home ๐Ÿš€

Awesome - I struggle to use the sat nav so find this totally amazing!!!!!!!!

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Why is it that the application of suncream on a beach immediately results in the almost magnetic attraction of every grain of sand within 2 yards to the applied areas thus turning one into a human emery board? Just asking!ย 

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On 8/11/2020 at 5:06 PM, soapdragon said:

Why is it that the application of suncream on a beach immediately results in the almost magnetic attraction of every grain of sand within 2 yards to the applied areas thus turning one into a human emery board? Just asking!ย 

Whilst we may refer to clay soil, sandy soil, peaty soil and so on, the fact remains that any sod of earth will contain larger grains as well as smaller ones. Those larger grains - the sandy bits if you will - tend to be less susceptible to binding together, so tend to remain as loose particles that can therefore stick to any nearby adhesive surface. This phenomenon is well known through the work of Professor Murphy and, given both his name and his research into soil dynamics, is commonly referred to either as Sod's Law or Murphy's Law.

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