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Day in Engineering History Archive - November 18

| Jan | Feb | Mar | Apr | May | Jun |
| Jul | Aug | Sep | Oct | Nov | Dec |

Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified.
Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-)
A couple years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred.

November 18

Happy Birthday Alan Shepard.  Please click here to visit RF Cafe.

1883: The U.S. and Canada adopted a system of standard time zones due a decision of the American Railway Association. 1903: The U.S. and Panama signed a treaty that granted the U.S. rights to build the Panama Canal. 1913: The first airplane in the U.S. to perform a loop-the-loop was piloted by Lincoln Beachey in San Diego, CA. 1923: Alan Shepard, America's first man in space and one of only 12 humans who have walked on the Moon, was born. 1949: Frank Jewett, the first president of Bell Telephone Labs, died. 1962: Nobel Prize winner Niels Bohr, developer of the planetary Bohr atomic model, died. 1963: The first telephone in the U.S. with push buttons instead of a rotary dial was placed in commercial service. 1999: 12 Aggies were killed when a ritual bonfire at Texas A&M collapsed on them during construction.


RF Cafe Software

RF Cascade Workbook
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.
RF system analysis including
frequency conversion & filters

Smith Chart™ for Excel
Smith Chart™ for Visio
RF & EE Symbols Word
RF Stencils for Visio

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