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 difference between beer and ale has to do with the way in which is it brewed, and how the yeast ferments. Before hops became widespread in Europe, ale was a beer created without the use of hops, while lager combined hops with the other ingredients.d. Ale is fermented at a higher temperature, and matures more quickly as a result. The yeast rises to the top as the beer ferments, creating a yeasty froth on the top of the beer cask. Lager is fermented at a lower temperature, and the yeast settles to the bottom as the beer matures.