Things that happen around us can be majorly separated into 2 forms. One – that take place without any rhyme or purpose, and – that do have a cause however we never really got down to think about it. One such issue is the number of blades of a fan.
Now you might have observed, fans come with 3 and 4 blades depending on the place where they’re getting used. In India, we generally have them with 3 blades. But the one’s with 4 blades, that are in most cases used in the US and colder areas, aren’t just designed that way to looks distinct. There’s a reason behind.
In US, the only aim of a ceiling fan is to supplement the air conditioner. That’s why the fan, which is slower than the one with 3 blades, serves the purpose of keeping air circulation within the room. The 4 blades move a huge mass of air.
However, In India, the fan is generally used as a stand-alone appliance creating a convective cooling effect. Being lighter, the fan operates at a higher speed and is additionally energy efficient.
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