Basically, fog forms when warm air meets colder air. When this happens, water vapor in the air â a gas â is cooled enough for the gas to turn to a liquid in the form of tiny water droplets. This process is called condensation.. We see those groups of tiny droplets as clouds or, when they're close to the ground, as fog.
What is a 'Cryptocurrency'. A cryptocurrency is a digital or virtual currency that uses cryptography for security. A cryptocurrency is difficult to counterfeit because of this security feature. A defining feature of a cryptocurrency, and arguably its most endearing allure, is its organic nature; it is not issued by any central authority, rendering it theoretically immune to government interference or manipulation.
Bitcoin is widely regarded as the first modern cryptocurrency â the first publicly used means of exchange to combine decentralized control, user anonymity, record-keeping via a block chain, and built-in scarcity. It was first outlined in a 2008 white paper published by Satoshi Nakamoto, a pseudonymous person or group.