Free Ethereum faucets are a reward system, in the form of a web site or app, that dispenses prizes in the form of a gwei, that is a hundredth of a millionth ETH, for visitors to claim in exchange for completing a captcha or task as delineate by the web site. There are faucets that dispense different cryptocurrencies. Rewards are distributed at various preset intervals of time. faucets typically offer fractions of a ethereum, however the amount will usually fluctuate in line with the value of ethereum.
Free Ethereum faucets are an excellent way to help introduce new people to ethereum, or to your favourite altcoin. several faucets offer info to newbies as well as offering them some free coins so they can try before they purchase, experimenting with a test transaction or 2 before putting real money on the road. Since this whole space is so new and a small amount scary to some people, who maybe don't quite trust it with their hard-earned money yet, this can be an excellent way to promote digital currency and attract new users.
Ethereum is an open-source, public, blockchain-based distributed computing platform featuring smart contract: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third-party interference. These apps run on a custom built blockchain, an enormously powerful shared global infrastructure that can move value around and represent the ownership of property. This enables developers to create markets, store registries of debts or promises, move funds in accordance with instructions given long in the past (like a will or a futures contract) and many other things that have not been invented yet, all without a middleman or counterparty risk.
Ethereum provides a decentralized Turing-complete virtual machine, the Ethereum Virtual Machine (EVM), which can execute scripts using an international network of public nodes. Ethereum also provides a cryptocurrency token called "ether", which can be transferred between accounts and used to compensate participant nodes for computations performed."Gas", an internal transaction pricing mechanism, is used to mitigate spam and allocate resources on the network.