Introduction. Mining is the process of adding transaction records to Bitcoinâs public ledger of past transactions. This ledger of past transactions is called the block chain as it is a chain of blocks. The block chain serves to confirm transactions to the rest of the network as having taken place.itcoin uses the hashcash proof-of-work function. The primary purpose of mining is to allow Bitcoin nodes to reach a secure, tamper-resistant consensus. Mining is also the mechanism used to introduce Bitcoins into the system: Miners are paid any transaction fees as well as a âsubsidyâ of newly created coins.
Hail stones are much bigger than ice pellets that one sees in a sleet. Hail has been known to cause damage to crops and occasionally to drivers as they can break windshields of cars. You can understand how big and heavy a hail must be if it can break a windshield of a car.
Sleet is ice in small pellet form, very near the melting point and often mixed or coated with liquid water, Snow forms in a cold â¦ air (below freezing) and falls to ground in cold air. Sleet may be snow that has fallen through a warm layer of air, melted, then through a colder layer where it freezes again. It can also be rain that falls from a warm layer of air (above freezing) and passes through cold air (below freezing) on the way down, freezing into small ice pellets.