Why do the blades of a rotating ceiling fan gather more dust than the blades of a stationary fan
[From: ] [author: ] [Date: 11-04-24] [Hit: ]
A far better explanation than the one where we waste the ice cream, yes? That is because it is the right one.So what about stationary table fans (because we find ceiling fans sufficiently mind-blowing, literally.) What happens is that,......
Remember what you used to do with your comb as a kid? Run it first through your hair and then through paper for the sheer enthusiasm you obtained when you saw the paper pieces eagerly sticking to the teeth on the comb? Your fan is no different. Only, it derives its enthusiasm in attracting particles of dust towards itself, and in turn in making you work all day, cleaning it.
A far better explanation than the one where we waste the ice cream, yes? That is because it is the right one.
So what about stationary table fans (because we find ceiling fans sufficiently mind-blowing, literally.) What happens is that, given that these are stationary, they experience no friction, no static electrical energy and hence cannot catalyse the dust particles attaching themselves to it. There is little else to be said.
-
Yes, logically, a rotating fan blade should disperse the dust. But dispersal of dust by fan blades does not preclude the latter from gathering some of the dust. Dispersal and gathering of dust by the fan blades are due to different independent mechanisms. In the present case, they act concurrently and each one has its own success.
Take a small amount of ice cream and throw it gently unto a wall. It would slip down by its weight leaving a little only on the wall on a small area. Next, take the same amount of ice cream again and throw it, this time, with a faster throw. You can see most of the ice cream stuck to the wall and widely spread.
A little amount only would slip. Larger the area of contact, larger is the amount a sticky matter adheres on another surface.
When fan blades rotate, the fan blades make a ‘hit' on the dust matter they come in contact. It implies a relative ‘throw' of the dust unto the fan blades. By this impact, the otherwise-granular each sticky dust speck spreads out like a mat over the fan blades holding a larger contact area and thus each particle has enough grip on the fan blade to overcome the gravitational pull down and areal wipe off. In addition, this extra momentum allows the sticky matter to sink into the fine groves on the surface of the blades.
keywords: of,than,blades,ceiling,more,rotating,Why,do,dust,fan,stationary,gather,the,Why do the blades of a rotating ceiling fan gather more dust than the blades of a stationary fan
