What do you even mean by a magnet having memory? And when you say the magnet switches its pole, does it just switch for a split second or can the 2 poles just switch and stay that way?
I don't know why anyone would think its not fair to talk about whats in a DVD. Talking about whats in it will create MORE SALES, unless whats in it is worthless.
I don't know why anyone would think its not fair to talk about whats in a DVD. Talking about whats in it will create MORE SALES, unless whats in it is worthless.
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