[NJARC] Happy Birthday Vacuum Tube:
peter markavage
manualman at juno.com
Tue Nov 16 12:59:03 EST 2004
And we can't forget:
Oklahoma was formed from Oklahoma Territory and Indian Territory, this
day in 1907.
Wiccans celebrate November 16 as the Night of Hecate, Goddess of Witches.
Traditionally, offerings were left at crossroads where three roads met,
as Hecate rules the three passages of life.
In 1841 Napoleon Guerin of New York patents the cork life preserver.
In 1875 Dr. William G. Arlington Bonwill of Philadelphia, Pennsylvania
patents the dental mallet for impacting gold into cavities.
Pete, wa2cwa
On Tue, 16 Nov 2004 12:06:53 EST Yardleyite at aol.com writes:
> Hello All,
> On November 16, 1904 Fleming patented the Fleming
> valve. The
> vacuum tube is 100 years old today!
> Thermionically Yours,
> Joe Cro N3IBX
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