Money Tips. Counterfeit notes are common in Peru, so always hold bills up to a light source and look for a watermark to ensure their authenticity. ATMs are found throughout the country, and offer some of the best exchange rates, though they may not accept all types of debit and credit cards.
The fermentation lock or airlock is a device used in beer brewing and wine making that allows carbon dioxide released by the beer to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation. There are two main designs for the fermentation lock, or airlock.
The lock on something such as a door or a drawer is the device which is used to keep it shut and prevent other people from opening it. Locks are opened with a key. At that moment he heard Gill's key turning in the lock of the door. An intruder forced open a lock on French windows at the house.