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  1. Capacitor (29664 bytes)
    58: *Paper - common in antique radio equipment, paper dielectric and aluminum foil lay...
    108: ...shorter than one quarter of the wavelength of the radio signal. This makes them look capacitive to their...
    128: ...ation in particular frequency bands. For example, radio receivers rely on variable capacitors to tune the...
    203: ...andbook for Radio Amateurs, 68th ed", The Amateur Radio Relay League, Newington CT USA, 1991
    229: [[sv:Kondensator]]
  2. History of astronomy (13532 bytes)
    79: ...redshift|redshifts]] of very distant galaxies and radio sources, the [[cosmic microwave background radiat...
    83: ...e to the naked eye: [[X-Ray]]s, [[gamma ray]]s, [[radio wave]]s, [[microwave]]s, [[ultraviolet radiation]...
  3. Electricity (13894 bytes)
    31: ...lude lamps, [[computer]]s and the [[Internet]], [[radio]] and [[television]], [[refrigeration]], [[air co...
  4. Czech Republic (13856 bytes)
    65: ...s controversial in the Czech Republic [http://www.radio.cz/en/article/53850] and has not caught on in Eng...
    254: ...Prague] - website of the English service of Czech Radio
  5. San Francisco, California (55022 bytes)
    115: ...he site of [[Sutro Tower]], a large red and white radio transmission tower, that is a well known landmark...
  6. Bill Clinton (59225 bytes)
    97: ...ct]]: eliminated major ownership restrictions for radio and television groups.
    297: ...r in the phenomenal growth of conservative [[talk radio]] in the 1990s.
    304: ...rid accusations were leveled by conservative talk radio. Among these were rumors of involvement with drug...
  7. Ronald Reagan (52721 bytes)
    31: ...t for [[storytelling]] and [[acting]]. He was a [[radio]] [[announcer]] of [[Chicago Cubs]] [[baseball]] ...
    119: ...ned these skills as an actor, live television and radio host, and politician, and as president hired skil...
  8. John F. Kennedy (36524 bytes)
    68: ...d as orators. Interestingly, many who listened on radio thought Nixon more impressive in the debate.[http...
    91: Troubled by the long-term dangers of radioactive contamination and nuclear weapons prolifera...
    245: ...ttp://ivan_corea.tripod.com/radioceylon_jfkennedy Radio Ceylon mourns the death of President John F.Kenne...
  9. Lyndon B. Johnson (32801 bytes)
    41: ...tion against the sitting [[governor of Texas]], [[radio]] personality [[W. Lee O'Daniel |W. Lee "Pappy" O...
  10. Richard Nixon (32863 bytes)
    55: ...h, that those who had listened to the debate on [[radio]] thought Nixon had won, but that the television ...
  11. Herbert Hoover (27123 bytes)
    56: ...r.jpg|thumb|right|200px|Hoover listening to the [[radio]].]]
    66: ...der was in the public good - such as regulating [[radio]] broadcasting and aviation, he preferred that a ...
  12. Franklin D. Roosevelt (74009 bytes)
    86: ...nt runs and bank failures. Roosevelt's series of radio speeches known as [[Fireside Chats]] presented hi...
  13. Calvin Coolidge (18374 bytes)
    41: ...p till that time. Making use of the new medium of radio, he delivered an address about once a month. He a...
    43: ...he United States to deliver a political speech on radio and on [[February 22]] he also became the first t...
    131: *Signed [[Radio Act of 1927]]
  14. National Football League (30340 bytes)
    137: ...rest of the game. The fog is so thick that TV and radio announcers had trouble seeing what was happening ...
  15. Ionosphere (19365 bytes)
    1: ...ces [[high-frequency]] (HF) (3–30[[MHz]]) [[radio propagation]] to distant places on the Earth.
    6: ...of these free electrons is sufficient to affect [[radio propagation]]. This portion of the atmosphere is ...
    19: ... layer is mainly responsible for absorption of HF radio waves, particularly at 10 MHz and below, with pro...
    22: ... away, thereby greatly increasing the range which radio waves can travel by reflection.
    25: ...l clouds of intense ionization, which can support radio wave reflections from 25 – 225 MHz. Sporad...
  16. Charles Kingsford Smith (4894 bytes)
    6: ...rner]] and [[Captain Harry Lyon]] (who were the [[radio operator]], [[navigator]] and [[engineer]] for th...
  17. Adolf Hitler (51456 bytes)
    152: ...ed to surrender. Hitler heard this on the Swedish radio.
    197: The archives of the Finnish [[Yleisradio]] broadcasting company contain an audio tape segm...
  18. Richard E. Byrd (4114 bytes)
    12: ...rd, along with pilot [[Bernt Balchen]] co-pilot / radioman Harold June and photographer Ashley McKinley ...
  19. Roald Amundsen (8034 bytes)
    26: ...ong with [[Olav Bjaaland]], [[Helmer Hanssen]], [[Sverre Hassel]], and [[Oscar Wisting]], arrived at t...
    36: ...he planes landed a few kilometers apart without a radio contact, yet the crews managed to reunite. One of...
  20. March 18 (10594 bytes)
    16: ...mitter becoming the first to broadcast as a [[ham radio]] operator.
    123: *[[2003]] - [[Alan Keith]], radio show host

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