Ditemukan 2 dokumen yang sesuai dengan query
Herrmann, Norbert
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Imagine that you’ve finally found a parking space after a long and harrowing search, but are now encountering some difficulty in trying to enter this space. Wouldn’t it be great if you knew a formula that allowed you to enter the space without difficulty? Are you annoyed because your soda can doesn’t remain upright during a picnic? Would you like to know why a mirror swaps right and left, but not top and bottom? Are ...
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Berlin: Springer, 2012
e20420584
eBooks Universitas Indonesia Library
Adam, Mike
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The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading sound using light patterns. While he received many patents for his process, he was initially ignored by the film industry. In order to promote and demonstrate his process he made several hundred sound short ...
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New York : Springer, 2012
e20425849
eBooks Universitas Indonesia Library
