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Noisy Facts series 4

Noisy Facts series 4
December 15, 2017 Georgie Paul
Georgie Paul
In Uncategorized

 

The enormity of water never ceases to amaze humankind 💦

There are 8 times as many atoms in a teaspoonful of water as there are teaspoonfuls of water in the Atlantic ocean. A teaspoon of water (about 5 mL) contains 2^1023 water molecules, but each water molecule is comprised of 3 atoms: two hydrogen and one oxygen. Moreover, if you’d laid down end to end each water molecule from a teaspoon full you’d end up with a length of 50 billion km or 10 times the width of our solar system. That’s some Math 😮

 


 

“Michael Schumacher” of their world 🏎️

A flea can accelerate faster than a Space Shuttle. A jumping flea reaches dizzying heights of about eight centimetres in a millisecond. Acceleration is the change in speed of an object over time, often measured in ‘g’s, with one g equal to the acceleration caused by gravity on Earth (9.8 metres/32.2 feet per square second). Fleas experience 100 g, while the Space Shuttle peaks at around 5 g. The flea’s secret is a stretchy rubber-like protein which allows it to store and release energy like a spring. How cool are these miniature guys 🤘

 


 

Do they need protein supplements 😋?

The Eiffel Tower can be 15 cm taller during the summer. When a substance is heated up, its particles move more and it takes up a larger volume – this is known as thermal expansion. Conversely, a drop in temperature causes it to contract again. The mercury level inside a thermometer, for example, rises and falls as the mercury’s volume changes with the ambient temperature. This effect is most dramatic in gases but occurs in liquids and solids such as iron too. For this reason large structures such as bridges are built with expansion joints which allow them some leeway to expand and contract without causing any damage.


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