All Questions
3
questions
3
votes
2
answers
132
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Why do wet napkins stick to mirrors or glass?
Take a dry piece of napkin & put it against a mirror ==> it falls down.
Dab it in water, oil, or alcohol ==> it now sticks / adheres to the mirror.
How can we explain this in physics terms? ...
- 196
1
vote
0
answers
153
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Avoiding snails around potted greenery
I am not sure how a snail "sticks" to surfaces e.g. plastic pot or stone. I suspect that it produces mucus, which then adheres with molecular forces.
I would like to know, how does the ...
- 1,815
1
vote
1
answer
118
views
Why can't I scotchtape ice?
I am thinking that the electrostatic force (Van der Waals force) should take effect when I try to tape an ice, but the tape slips. Why does this happen?
- 13k