According to Science Daily, the most significant geological event that happens in ocean trenches is the gradual subduction of the Earth's crust down into its mantle. This process takes tens of...
A blockchain â originally block chain â is a continuously growing list of records, called blocks, which are linked and secured using cryptography. Each block contains typically a hash pointer as a link to a previous block, a timestamp and transaction data. By design, blockchains are inherently resistant to modification of the data.
1 Block (rural Australia), a small agricultural landholding. 2  Block (district subdivision), administrative region in some South Asian countries. 3  City block, the smallest area that is surrounded by streets.  License block, a geographically defined area for the purpose of the extraction of natural resources.