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Re: [Phys-L] [SPAM] Re: Physics, Errors and Different Teaching Styles


On 2012, Jun 27, , at 07:50, John Clement wrote:


Then of course there is air pressure which is related to buoyancy. Most
students think suction cups work by pulling up on the object, but are really
flummoxed when they realize there is a vacuum inside the suction cups so
there can be no interactions there.


Calling them vacuum cups might help.


bc curious that a vacuum cleaner is not called a suction cleaner.