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.
The main difference between ales and lagers is the type of yeast used in the brewing process, which in turn dictates what ingredients and techniques can be used.