April 14, 1932: Zounds! We've Split the Atomic Nucleus


	April 14, 1932: Zounds! We've Split the Atomic Nucleus

Mohir

4-14-2008 6:17 AM

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tags:

science, discovery, atom

1 Comment |

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4-14-2008 8:46 AM

syncopath

like any birth, it is accompanied with pain, and carry a lot of unpredictable consequences ...... hope We will use it 4 the better !!?

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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/603606de-a13a-4d19-8d16-9ccb60cd60bf/84CCD132-9A3D-4437-9A85-BC28DA13AFA9/" 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://www.wired.com/science/discoveries/news/2008/04/dayintech_0414" href="http://www.wired.com/science/discoveries/news/2008/04/dayintech_0414" style="font-size: 11px;">www.wired.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/science/discoveries/news/2008/04/dayintech_0414"><STRONG>1932: </STRONG>John Cockcroft and Ernest Walton focus a proton beam on lithium and bust its nucleus. The era of accelerator-based experimental nuclear physics is born.</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://www.wired.com/science/discoveries/news/2008/04/dayintech_0414"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.wired.com/img/B2AC6ED1-C6EF-4609-ACFA-882C4A31BE10" alt="" /></div></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://www.wired.com/science/discoveries/news/2008/04/dayintech_0414">Ernest Rutherford, who first postulated the concept of atomic nucleus in 1910, had called for "<A href="http://www.tcd.ie/Physics/history/walton/walton_biography.php" linkindex="41" set="yes">a million volts in a soapbox</A>" to advance nuclear research. Working in a vacant room at Rutherford's Cavendish Laboratory at Cambridge University, Englishman Cockcroft and Irishman Walton used spare parts along with some wood and nails to build the world's first nuclear-particle accelerator in 1929. At the heart of the Cockcroft-Walton generator, a system of capacitors and thermionic rectifiers upped the voltages to 600,000 volts. It wasn't a million volts, but it proved sufficient.</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://www.wired.com/science/discoveries/news/2008/04/dayintech_0414"><P>Particle accelerators advanced rapidly in power and design -- like <A href="http://www.wired.com/science/discoveries/news/2008/02/dayintech_0220#">Ernest Lawrence's circular accelerator, or cyclotron</A>. (Earnest researchers, these chaps: Rutherford, Walton, Lawrence.)</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/84CCD132-9A3D-4437-9A85-BC28DA13AFA9/blog/" title="blog or email this clip"><img src="http://content8.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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