It's a small(er) world


	It's a small(er) world

Lembit

7-7-2007 9:36 AM

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tags:

earth, science, measurement, satellite, sea levels

1 Comment |

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7-7-2007 9:38 AM

Lembit

Somehow this clip came out a little disorganised, Sorry

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/9dd907cf-d3bf-45b8-90c4-f4fa6b9e450b/BBC571E0-C506-4A2A-A823-921C5C67C9CC/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://environment.newscientist.com/article.ns?id=dn12214&feedId=online-news_rss20" href="http://environment.newscientist.com/article.ns?id=dn12214&feedId=online-news_rss20" style="font-size: 11px;">environment.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/article.ns?id=dn12214&feedId=online-news_rss20"><H1 class="inline">Honey, we shrunk the Earth</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/article.ns?id=dn12214&feedId=online-news_rss20"><P>"It is essential for the positioning of the satellites that measure rises in sea level – they must be accurate to the millimetre," says Nothnagel, who led the German team. "If the positions of the ground stations tracking the satellites are not accurate to the millimetre, then the satellites cannot be accurate either."</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/article.ns?id=dn12214&feedId=online-news_rss20"><P>The scientists round the number up to 12,756.274 kilometres (7,926.3812 miles) for the general use.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://environment.newscientist.com/article.ns?id=dn12214&feedId=online-news_rss20"><P>The world is smaller than we thought – by five millimetres. That is the conclusion of an international project to measure the diameter of the Earth. The last such measurement was made in 2000.</p> <P>However, the new data does not mean the Earth has shrunk. The new figure is simply more accurate, thanks to more accurate measurements, more data and better geophysical models.</p> <P>The reduction makes no tangible difference to everyday life – it will not noticeably shorten your journey to work.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/BBC571E0-C506-4A2A-A823-921C5C67C9CC/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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