See also. 1  Einstein protocol. 2  Light-second. 3  1 petameter (examples of distances on the order of one light-year) 4  Orders of magnitude (length) 5  Hubble length.
The bar is used also as a staging point for mixing drinks, interacting with customers, and storing various equipment such as cups, garnishes, and so forth. When people do distinguish between a bar and a tavern, they usually think of a bar as an establishment where only alcohol is available, while a tavern offers food as well as alcohol.
I'm a bartender and as far as I know a dive bar is one that is dirty and the people that patronize it are just as dirty as it is. Physically, mentally, etc. a dive bar is a grimy, dirty, non-pretentious bar, where tough guys with tattoos and mean drunks hang out and posers get the crap beat out of them.