Misc Musings

You Can’t Smell Gas

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Natural Gas is odorless. It is comprised mainly of methane which does not smell, however when you turn on the gas on your stove it gives off a very strong stench!

This is because of a chemical known as Mercaptan (also known as Thiol). This is added to Natural gas in order to make it smell! It is a harmless gas which is a waste product of normal metabolism and is found naturally in living organisms.

The chemical features very few useful qualities, bar one, it gives off an incredibly pungent smell. Even in the smallest quantities the human nose can still detect it. It is the world’s smelliest substance and is unbearable in its concentrated form.

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Animals

Why are Flamingos Pink?

FlamingosFlamingos are one of the most iconic creatures in the animal kingdom, easily identified by their bright pink plumage. However when Flamingos were first brought to zoos from the wild, the keepers were dismayed to find they lost their bright pink colour and turned a grey/white shade.

It turns out the secret to the flamingo’s pink feathers comes from their diet. In the wild flamingos eat algae and invertebrates that contain things called carotenoids. Carotenoids contain pigments which dissolve in the flamingos fats and are then deposited in the growing feathers of the flamingo giving them their colour. If this is removed from the diet of the flamingo then the colour will be lost and feathers come through as their natural grey colour.

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