I recommend this video by Sixty Symbols, the same production of Numberphile and Computerphile in case you’ve heard of them.
But basically, when atoms are close enough to each other they attract each other (van der Waals force), which can cause things to stick to each other even without chemical bonds.
I recommend this video by Sixty Symbols, the same production of Numberphile and Computerphile in case you’ve heard of them.
But basically, when atoms are close enough to each other they attract each other (van der Waals force), which can cause things to stick to each other even without chemical bonds.