paper capacitor
61History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …
62Keyboard technology — Keyboard construction, in four layers, of a typical notebook computer keyboard There are many types of keyboards, usually differentiated by the switch technology employed in their operation. Keyboards are defined by the number (usually about… …
63Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
64Flash (photography) — The furious wing action of a Hummingbird Hawk moth is frozen by flash. The flash has given the foreground more illumination than the background. See Inverse square law A flash is a device used in photography producing a flash of artificial light… …
65Wardenclyffe Tower — (1901 ndash; 1917) also known as the Tesla Tower, was an early wireless telecommunications aerial tower designed by Nikola Tesla and intended for commercial trans Atlantic wireless telephony, broadcasting, and to demonstrate the transmission of… …
66Butterworth filter — The Butterworth filter is one type of electronic filter design. It is designed to have a frequency response which is as flat as mathematically possible in the passband. Another name for them is maximally flat magnitude filters.The Butterworth… …
67History of special relativity — The History of special relativity consists of many theoretical and empirical results of physicists like Hendrik Lorentz and Henri Poincaré, which culminated in the theory of special relativity proposed by Albert Einstein, and subsequent work of… …
681T-SRAM — is a memory technology introduced by MoSys, Inc., which offers a high density alternative to traditional SRAM in embedded memory applications. Mosys uses a single transistor storage cell (bit cell) like DRAM, but surrounds the bit cell with… …
69Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes …
70Google's hoaxes — TISP redirects here. For the space program, see Teacher in Space Project. Google has a tradition of perpetrating April Fools Day hoaxes. Contents 1 April Fool s hoaxes 1.1 2000 1.2 2002 …
