tag:blogger.com,1999:blog-19109033.post6243983556566839485..comments2024-03-24T08:26:00.732+00:00Comments on photopol: BREWSTER & HIS MARTELLOSPólóhttp://www.blogger.com/profile/08661092894104384856noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-19109033.post-58274823724288890822016-11-16T10:30:10.093+00:002016-11-16T10:30:10.093+00:00Your own comment is perhaps more relevant than you...Your own comment is perhaps more relevant than you think.<br /><br />By that time (1918), and assuming the illustration reflects Tower No. 2 on Howth Head, this tower had already been used by Marconi in 1905 in the course of his experiments with wireless telegraphy.<br /><br /><i>"In 1905, a Marconi station was installed at the Martello Tower in Howth and a series of signal tests were carried out between the station and the H. M. telegraph ship Monarch as it travelled between Howth and Holyhead. The importance of these trials was there was at last available an accurate instrument (the thermogalcanometer – designed by W. Duddell) that was sensitive enough to measure the small currents in the receiving antenna." </i><br /><br /><a href="https://hurdygurdyradiomuseum.wordpress.com/marconi-the-tower/" rel="nofollow">Link</a><br />. Pólóhttps://www.blogger.com/profile/08661092894104384856noreply@blogger.comtag:blogger.com,1999:blog-19109033.post-85219621769536310642016-11-16T10:13:41.852+00:002016-11-16T10:13:41.852+00:00Wasn’t Brewster very prescient in the first illust...Wasn’t Brewster very prescient in the first illustration above...He foresaw the arrival of the mobile phone!Aodhnoreply@blogger.com