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They are done magnetically. The fabric has metallic properties that they where. Even though the uniforms are not actually metallic. They "resemble" it as far as teh physics of the com badges are concerned.

In the Star Fleet Technical Manual (1973), it was referred to as "magnatomic adhesion"

And in the DS9 episode where Worf appeared, a metal strip on the side of the collar is seen (on the inside of where the pips go on the outside). Presumably something similar for the combadges? Although I have no clue how they seem to be able to stick onto any clothing. Probably best not to think about it (after all, it's just velcro in real life)

Kitface 11:19, June 14, 2011 (UTC)

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