Pigeon postal system

Pigeons were regularly used for official and military communications, Continue reading

Cooling system for buildings

Leonardo da Vinci apparently designed cooling system for buildings. In fact it started with a noblewoman Isabella d’Este, whose home was in Mantua, Italy, where Leonardo da Vinci was a guest in 1500. The cool air, was created by a paddlewheel in an enclosed water-filled chamber, which was blown into the room by a bellows.

Additional Information:

Date:
      1500

Name(s):
      Leonardo da Vinci

Occupation:
      Artist,
      Inventor,
      Visionairy

Location:
      Mantua, Italy

Canada starts Digital Wireless Cable TV

This cable TV is digital and totally wireless, employing no ground wires, but instead uses a satellite network. Continue reading

Undersea cable network between Japan and USA

The first undersea fiberoptic cable network began operation in August 2001, between Japan and USA, this was a joint venture between American and Japanese telecommunications companies, connecting Japan to the U.S. mainland via Hawaii.
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Switzerland electrifies rail system

In 2000, Switzerland became the first country to have a fully electrified rail system, with less than 0.4 percent powered by other energy sources. Continue reading