Science Worship : 無料・フリー素材/写真
Science Worship / jurvetson
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | what if… It’s quite remarkable how many of Tesla's inventions have proven to be the most efficient technologies of the day, from AC power systems and polyphase transmission lines, to RF lighting, to the AC induction motor in the Tesla car. He is now recognized as the inventor of radio, not Marconi, one of his many competitors.Edison was so competitive with Tesla (partnered with Westinghouse at the time) that he arranged for the electric chair to use AC power for electrocutions, conveying the marketing message that AC is lethal (versus the DC power systems that Edison sold). Edison’s lab “Westinghoused” 24 dogs purchased from local children for 25 cents apiece before moving to a human criminal.On his deathbed, Edison volunteered that his biggest mistake was trying to develop DC instead of the vastly superior AC system that his former employee, Nikola Tesla, had put within his grasp.---------Image: Stained glass display in Prague (more) |
| 撮影日 | 2008-06-27 14:52:30 |
| 撮影者 | jurvetson , Los Altos, USA |
| タグ | |
| 撮影地 | |
| カメラ | Canon PowerShot SD790 IS , Canon |
| 露出 | 0.004 sec (1/250) |
| 開放F値 | f/2.8 |
| 焦点距離 | 15136.92941 dpi |