I’m not talking about like water or stuff like that, I mean like superglue or a glue stick or duct tape or so on.
In: Chemistry
Molecular bonds between the materials.
Some things get a little cozy together, and the edges of their molecules attract a bit. This gets you things that are a little sticky. Gecko feet on windows is an example, as are most weak tapes.
Others react with contact and become part of each other. This leads to very strong bonds, think industrial epoxies and superglue.
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