Anyone who wants to send and receive Bitcoins, a digital currency, needs a cryptocurrency wallet. Every wallet has a private key in the form of a numeric code that automatically signs transactions. Every transaction is recorded by every computer in the network in an encrypted data block and added to the existing blockchain. The recipient sees in their wallet that the bitcoins have been transferred. Author: 3sat/nano/Volker Wasmuth/Partrick Zeilhofer/Marcel Schmitz/Daniel Zanetti/Johannes Noack/Jochen Schmidt Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX
In ancient Egypt, the ancestor of the domestic cat was revered and became the companion of people. From the realm of the pharaohs, the first tame specimens probably reached today's Europe with Roman soldiers. Author: ZDF/Terra X/Spiegel TV/ Nanje de Jong-Teuscher, Kirsten Hoehne/Anja Schütze, Uli W
Stromatolites are calcareous deposits. The stones can be up to 3.5 billion years old. For a long time they were known only as fossils, until 1956, when a "living" colony of stromatolites was discovered off the west coast of Australia. Author: ZDF/Terra X/Viking Film/Iris Gesang/Andreas Kieling, Fra
How do we see? The structure of the eye: from the transparent cornea to the retina. Author: 3sat/nano, Bluemoon Media, Volker Wasmuth+Patrick Zeilhofer, M. Herrmann+T. Külgen+D. Zanetti, Tobias Adams, 3D Maxi Translation and dubbing: alugha Click here to see more videos: https://alugha.com/Terra
