Edward Troughton

<html> <head> <title>Edward Troughton</title> <meta name="googlebot" content="noodp"> <meta name="robots" content="noodp"> <link rel="apple-touch-icon-precomposed" href="/silly-nndb-icon.png" /><style type="text/css">  </style></head> <body bgcolor=#ffffff> <center> <table cellpadding=0 cellspacing=0 border=0><tr><td valign=top><table width=550 cellpadding=0 cellspacing=0><tr><td bgcolor=white><table width="100%" cellpadding="4" cellspacing="0" background="/nndb.gif"> <tr> <td rowspan="2" align="left" valign="top"><a href="http://www.nndb.com/"><img src="/title.gif" width="260" height="50" border=0 alt="NNDB"></a></td> <td><table width="100%" cellspacing="0" cellpadding="6"> <tr align="center"> <td width="25%" nowrap><b><font size="-1" face="Verdana, Arial, Helvetica, sans-serif">This is a beta version of NNDB</font></b></td> </tr> </table></td> </tr> <tr> <td align="right" valign="middle"><b><font size="-1" face="Verdana, Arial, Helvetica, sans-serif"> <form action="http://search.nndb.com/search/nndb.cgi" method="get"> <input type="hidden" name="nndb" value="1"></input> <nobr>Search: <select name="omenu"> <option value="unspecified" selected>All Names</option> <option value="living">Living people</option> <option value="dead">Dead people</option> <option value="bands">Band Names</option> <option value="books">Book Titles</option> <option value="movies">Movie Titles</option> <option value="fulltext">Full Text</option> </select> for <input name="query" value="" size=24 maxlength=96> <input type=submit value="Search"> </font></b></nobr></form></td> </tr> </table>        </td></tr><tr><td bgcolor=red height=2></td></tr><map name=fool><area coords="102,0,240,14" href="/people/670/000174148/bibliography/" alt="bibliography"></map><tr bgcolor=F0F0F0><td bgcolor=F0F0F0 style="padding: 0px 15px 15px 15px;"><img src="/red-profile-2.gif" align="right" height=15 width=240 border=0 usemap=#fool><br clear="all"><table cellpadding=0 cellspacing=0 width=100%><tr><td bgcolor=F0F0F0><font size=+3 face="Verdana, Arial, Helvetica, sans-serif"><b>Edward Troughton</b></font><p><b>Born:</b> Oct-<a href="/lists/752/000105437/" class=proflink>1753</a><br><b>Birthplace:</b> Corney, Cumberland, England<br><b>Died:</b> <a href="/lists/050/000106729/" class=proflink>12-Jun</a>-<a href="/lists/345/000106027/" class=proflink>1835</a><br><b>Location of death:</b> <a href="/geo/881/000069674/" class=proflink>London, England</a><br><b>Cause of death:</b> unspecified<br><b>Remains:</b> Buried, <a href="/cemetery/690/000208066/" class="proflink">Kensal Green Cemetery, London, England</a><br><p><b>Gender:</b> Male<br><b>Race or Ethnicity:</b> White<br><b>Occupation:</b> <a href="/lists/231/000069024/" class=proflink>Inventor</a>, <a href="/lists/179/000068972/" class=proflink>Scientist</a><p><b>Nationality:</b> England<br><b>Executive summary:</b> Early scientific instruments<p>Edward Troughton was an early maker of astronomical, navigational, and surveying instruments. He designed and made the first modern transit circle (allowing an object's two coordinates to be determined simultaneously) for <a href="/people/036/000169526/">Stephen Groombridge</a>, invented the Troughton reflecting circle and the dip sector. He first gained scientific respect in 1809, when he published a paper explaining the methodology behind his device for dividing a circle -- knowledge not devised by Troughton, but previously held in secrecy by instrument-makers. He made substantial improvements in accuracy to the balance, compensated mercurial pendulum, portable astronomical quadrants, marine and mountain barometers, and large-diameter theodolites used for the American coast survey of 1815. He also supplied all the scientific instruments used by <a href="/people/583/000195995/">George Everest</a> to conduct his survey of India. He was color-blind, and never married.<p><b>Father:</b> Francis Troughton (farmer)<br><b>Mother:</b> Mary Stable Troughton (instrument maker)<br><b>Brother:</b> John Troughton (instrument maker, b. 1739)<br><p>    <a href="/honors/763/000072547/">Copley Medal</a> 1809<br>    <a href="/org/793/000055628/">Royal Society</a> 1810<br>    <a href="/org/052/000086791/">Royal Astronomical Society</a> Founding Member<br>    <a href="/org/107/000099807/">Royal Society of Edinburgh</a> 1826<br>    Risk Factors: <a href="/lists/784/000064592/">Color Blindness</a><br> <p> <b>Author of books:</b><br> <i>Method of Dividing Astronomical and Other Instruments</i> (<tt>1809</tt>)<br><p> <br> <p> <table> <tr> <td align=right valign=middle style="padding-right: 5px;"><span style="font-family: Georgia, serif; font-size: 22px; font-style: italic; color: #ff3333;">New!</span><br> <a href="http://mapper.nndb.com/" class="fotmlink" style="font-family: Tahoma, sans-serif; font-size: 10px; font-weight: bold; text-decoration: none; color: #dd0000;">NNDB MAPPER</a></td> <td valign=middle align=right style="border-left: 1px solid #bbb; padding-left: 5px;">Create a map starting with</td> <td valign=middle align=right><a href="http://mapper.nndb.com/start/?id=174148"><img src="/man.gif" border=0 style="padding: 2px;"></a></td> <td align=left valign=middle> <a href="http://mapper.nndb.com/start/?id=174148">Edward Troughton</a></td> </tr> </table> <font face="Trebuchet MS, arial, helvetica, sans-serif" size="-2">Requires Flash 7+ and Javascript.</font> <br><br><p> <font size=-1>Do you know something we don't?</font><br> <font size=-1><a href="http://commentary.nndb.com/submit/feedback/?id=174148" rel="nofollow">Submit a correction or make a comment about this profile</a></font><br> <p> <br><br><p><font size=-1>Copyright ©2019 Soylent Communications</font><p> </td></tr></table> </td></tr> </table> </td> <td width=180 align="center" valign="top" style="padding: 0px 0px 8px 25px;"></td></tr> </table> </center> </body> </html>

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Edward Troughton