<div><div dir="auto">Na india só fazem phonia???</div><br><div class="gmail_quote"><div>João Costa > CT1FBF <<a href="mailto:ct1fbf@gmail.com">ct1fbf@gmail.com</a>> escreveu em seg, 13/11/2017 às 18:22 :<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><h1><font size="2">Acharya Jagadish Chandra Bose ou Sir Jagadish Chandra Bose, nasceu a 30 de novembro de 1858 e faleceu a 23 de novembro de 1937 e foi um importante físico, biólogo, biofísico, botânico e arqueólogo, além de escrever ficção científica. Vivendo na Índia britânica, foi pioneiro na investigação sobre rádio e micro-ondas ópticas, tendo feito contribuições muito importantes nesta área e nos estudos das plantas, formando as bases da ciência experimental no subcontinente indiano. O Instituto de Engenheiros Eletricistas e Eletrónicos (IEEE) nomeou-o um dos pais da ciência do rádio a nível mundial<span style="color:rgb(34,34,34);font-family:sans-serif;font-weight:400">.</span></font><br></h1><h1 style="font-size:16pt;color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif">AU2JCB special event call-sign from India</h1><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium"><strong>AU2JCB</strong> is a special event call-sign to commemorate the birth date (30 NOV) and to pay homage and to to tell about the great Indian scientist <strong>Acharya JAGADISH CHANDRA BOSE</strong>.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">VU2DSI- Datta Deogaonkar will operate with this <strong>AU2JCB</strong> special event call-sign.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">The Details of operation----<br>Period----23 NOV 2017 to 11 DEC 2017<br>Frequencies------- <br>10 M-- 28545, 28510,28490. 21 M—21235, 21310, 21350.<br>20M—14210, 14250, 14310. 40 M---7040, 7150.<br>80 M --- 3710.<br>IN FM MODE----- 6M –50800, 51500. 10 M---29700.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Preferably the operation will be on higher bands according to propagation conditions.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">QSL--- Direct to VU2DSI,"SURABHI" MEHERABAD. AHMEDNAGAR.414006. INDIA.</p><hr width="60%" style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium"><br style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium"><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Aacharya J.C.Bose ---</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">The “Father of Wireless Communication”.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Acharya Bose's demonstration in 1895 & 1897 predates all.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Bose transmitted wireless signals to distant of a mile.Popove in Russia was still trying remote signaling at this time & the first wireless experiment by Marconi was not successful until May 1897.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Bose is the pioneer in microwave optics technology.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Bose's invention of 1 centimeter to 5 millimeters radio waves is being used in radars, satellite communication& remote sensing.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Bose's concepts from his original 1897 papers are now incorporated into a new 1.3 mm multi-beam receivers on the NRAO (National Radio Observatory) 12 Meter Telescope.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">Bose anticipated the use of P-type& N-types semiconductors & hence 60 years ahead of his time. Bose developed the use of GALENA crystals for making receivers.</p><p style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica,sans-serif;font-size:medium">In Bose presentation to the Royal Institution in London in January 1897, he speculated on the existence of electromagnetic radiation from the sun. This radiation from the sun was not detected till 1942.</p></div>
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</blockquote></div></div><div dir="ltr">-- <br></div><div class="gmail_signature" data-smartmail="gmail_signature">73's de Carlos Fonseca, CT1GFQ <br>SKCC #466T<br>REP #1406</div>