It was twenty years ago today: a celebration of two decades of optical sectioning

It was twenty years ago today: a celebration of two decades of optical sectioning.

It was twenty years ago today

To mark the 20 th anniversary of the commencement of [email protected] (now arXiv.org), I've adapted this article from one 1 that first appeared in Physics World and was later reprinted (with permission) in Learned Publishing. This version is closer to my original draft, with some updates for this occasion, plus an astounding 2 5 added footnotes. 2 [email protected] received its first email...

Twenty Five Years Ago

so rarely met witH that a description of the following case is not without interest. AEuropean, aged 38, was admitted on the 4th February, 1929, with paresis of the left arm and leg. His previous history showed that he contracted syphilis in 1915, for which he was treated with a full course of murcury and galvarsan. In 1919 his Wasserman reaction was still positive and he had a further course j...

Twenty Five Years Ago

A second individual next went down the shaft of the well with a rope to try and rescue the boy, but was suffocated and ropped into the water. A third then went down, dangled his legs in the water and tried to grasp the two still living bodies between his knees. He suddenly felt suffocated, however, and shouted to be drawn up. This man recovered; he states that he thinks the two were still livin...

Twenty Five Years Ago