Mercury is the only common metal which is liquid at ordinary temperatures. Mercury is sometimes called quicksilver. It is a heavy, silvery-white liquid metal. It is a rather poor conductor of heat if compared with other metals but it is a fair conductor of electricity. It alloys easily with many metals, such as gold, silver, and tin. These alloys are called amalgams.
describe big data, so that you can speak intelligently about it when asked. So probably the main thing to recognize is this notion of the three V's of big data, which are volume, velocity and variety.
Volume is the V most associated with big data because, well, volume can be big. What we're talking about here is quantities of data that reach almost incomprehensible proportions. Facebook, for example, stores photographs. That statement doesn't begin to boggle the mind until you start to realize that Facebook has more users than China has people.