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Now That's Cold!
Kirt's Cogitations™ #160

These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.

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   Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or
                                        reflection; meditation; contemplation.
   Kirt [kert] – proper noun: RF Cafe webmaster.


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Now That's Cold!

The coldest spot on Earth is at the Vostok Ice Station in Antartica, where in 1989 the temperature was measured to be -128.6 F (-89.2 C). At that temperature, water would freeze before hitting the ground when poured from table height. To the other extreme, a high temperature of +136 F (57.8 C) was recorded in El Azizia, Libya, in 1922. At an altitude of 50 miles above the two equators, temps of -220 F (-140 C) are common. In the Earth's inner core, temps can reach +13,000 F (7,200 C), which is hotter that the surface of the sun.
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RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
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