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    3D PRINTING

                      3D Printing or 3-Dimensional Printing is a process of making a physical object from a digital
                      three-dimensional model. The object can be made using a few printing materials, including plastics,
                      powders, filaments, paper or even human tissue.

                           3D Printed Objects

                      Look at some 3D printed objects around the world.

                         American artist, Ivan Owen, created the first 3D printed prosthetic limb in 2011.
                          Strati is claimed to be the world's first 3D printed electric car.
                         The world's first 3D printed bridge is a 40-feet pedestrian bridge in Amsterdam.
                         Tvasta is India’s first 3D printed house which was created in 2020, in Chennai.

                                         3D printed prosthetics limbs            3D printed electric car

                                              3D printed bridge               3D printed house in India

                             BLOCKCHAIN

                      Blockchain is a decentralised system of recording information that makes it nearly impossible to alter,
                      hack, or cheat the system. Blockchain can be used in businesses where data integrity, transparency,
                      and traceability are essential. It is a shared ledger that records transactions and tracks assets (tangible
                      or intangible) within a business network. Tangible assets include houses, cars, cash, land, etc., and
                      intangible assets involve intellectual property, patents, copyrights, branding, etc.

                      The blockchain duplicates and distributes a digital ledger of transactions across the entire network of
                      computers. Each block within a chain stores a cryptographic hash of the previous block, timestamp,
                      and transaction data, ensuring immutability. This record of every transaction is updated and added
                      to the participant’s ledger after consensus is reached. A blockchain network can record, track, and
                      trade anything that carries value.
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