geography

Arctic Region and Arctic Council

The Arctic is a polar region located at the northernmost part of Earth.

8 Jul, 2020

BRAHMAPUTRA AND ITS TRIBUTARIES

About Brahmaputra River: The Brahmaputra called Yarlung

3 Jul, 2020
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    Current Affairs – 10th June 2021

    1.   DIHING PATKAI NATIONAL PARK

    • News: It is Assam’s 7th National Park.
    • Details:
      • The “last remaining stretches” of the Assam Valley tropical wet evergreen forests have become Assam’s seventh National Park.
      • The five older National Parks in the State are Kaziranga, Manas, Nameri, Orang and Dibru-Saikhowa.
      • Kaziranga and Manas are UNESCO World Heritage Sites. They are also tiger reserves along with Nameri and Orang.

    2.   EL SALVADOR APPROVES BITCOIN AS LEGAL TENDER

    • News: Bitcoin is to become legal tender in El Salvador, the country’s President said, making it the first nation to adopt a cryptocurrency for everyday use.
    • About Cryptocurrency:
      • A cryptocurrency, crypto-currency, or crypto is a digital asset designed to work as a medium of exchange wherein individual coin ownership records are stored in a ledger existing in a form of a computerized database using strong cryptography to secure transaction records, to control the creation of additional coins, and to verify the transfer of coin ownership.
      • It typically does not exist in physical form (like paper money) and is typically not issued by a central authority. Cryptocurrencies typically use decentralized control as opposed to centralized digital currency and central banking systems.
      • When a cryptocurrency is minted or created prior to issuance or issued by a single issuer, it is generally considered centralized.
      • When implemented with decentralized control, each cryptocurrency works through distributed ledger technology, typically a blockchain, that serves as a public financial transaction database.
    • About Blockchain Technology:
      • Blockchain is a specific type of database.
      • It differs from a typical database in the way it stores information; blockchains store data in blocks that are then chained together.
      • As new data comes in it is entered into a fresh block. Once the block is filled with data it is chained onto the previous block, which makes the data chained together in chronological order.
      • Different types of information can be stored on a blockchain but the most common use so far has been as a ledger for transactions.
      • In Bitcoin’s case, blockchain is used in a decentralized way so that no single person or group has control—rather, all users collectively retain control.
      • Decentralized blockchains are immutable, which means that the data entered is irreversible. For Bitcoin, this means that transactions are permanently recorded and viewable to anyone.