unpractical
51Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
52David Dixon Porter — For the Marine officer, see David Dixon Porter (Medal of Honor), for other persons see David Porter (disambiguation) David Dixon Porter …
53Waveguide (acoustics) — This page is about waveguides for acoustics and sound, for other types of waveguide, see Waveguide An acoustic waveguide is a physical structure for guiding sound waves. Examples One example might be a speaking tube used aboard ships for… …
54James Grierson — Lieutenant General Sir James Moncrieff Grierson KCB, CMG, CVO, ADC (27 January 1859 – 17 August 1914) was a British soldier. Biography In the Army Manoeuvres of 1912, he decisively beat Douglas Haig, despite Haig having the odds in his favour.In… …
55Vyrlytsia (Kiev Metro) — Vyrlytsia ( uk. Вирлиця; ru. Вырлица, Vyrlitsa ) is a station on the Kiev Metro s Syretsko Pecherska Line. It was opened on March 4 2006 on the already functioning stretch, Kharkivska Boryspilska.The station is by far the most unusual in the… …
56Zuiikin' English — or officially nihongo| Eikaiwa Taisō Zuiikin English |英会話体操 Zuiikin English|Eikaiwa Taisō Zuiikin Ingurisshu is a Japanese television series originally aired in 1992 by Fuji Television. Eikaiwa, Taisō and Zuiikin mean English conversation,… …
57Planer (metalworking) — A planer is a type of metalworking machine tool that is analogous to a shaper, but larger, and with the entire workpiece moving beneath the cutter, instead of the cutter moving above a stationary workpiece. The work table is moved back and forth… …
58St. James Theatre, Wellington — The St. James Theatre, now the Westpac St. James Theatre, (shortened to St. James by locals) is a stage theatre located in the heart of New Zealand s capital city, Wellington. The present theatre was designed in 1912 by Australian theatre… …
59He Zuoxiu — (zh cp|c=何祚庥|p=Hé Zuòxiū; born 1927) is a controversial Chinese physicist and member of Chinese Academy of Sciences, and a crusader against supernatural and unscientific thinking, [International Religious Freedom Report,… …
60Acoustic transmission lines — An acoustic transmission line is the acoustic analog of the electrical transmission line, typically thought of as a rigid walled tube that is long and thin relative to the wavelength of sound present in it. Pipe organs, woodwinds, and the like… …
