...or as Sir Humphrey Appleby may say, A multiplicity of scientific visualization devices implement a form of junction rectification whereby heat is discharged, or absorbed, when an electric current passes across a junction between two materials as opposed to the more vernacular process whereby the liquefaction of oxygen and nitrogen is used for noise diminution through a reduction in absolute temperature.
:-) Simon -----Original Message----- From: Doug Franklin [mailto:[EMAIL PROTECTED]] Sent: Friday, 10 January 2003 1:38 PM To: [EMAIL PROTECTED] Subject: Re: Speak Amurricun! Hi Mike, On Thu, 09 Jan 2003 23:26:32 -0600, Mike Johnston wrote: > > A lot of scientific imaging devices seem to utilize semiconductor > > Peltier effect devices rather than gas cryogenics for noise > > reduction through cooling. > > Whud he say? You ever seen one of those cigarette/cigar lighters that goes "click" instead of the long drawn-out "swish" of one with flint? Well, that was a piezoelectric lighter. Strangely enough, deforming quartz generates a voltage across the quartz crystal. Even stranger, applying a voltage (current?) across the crystal of quartz will make it change shape. Peltier devices are similar, except instead of the electricity changing their shape, it makes one side cold and the other warm. TTYL, DougF KG4LMZ
