Please Support My Advertisers

Newest Engineering Jobs
on the RF Cafe Forums
Newest Topics
on the RF Cafe Forums

RF Cafe Software

Hobby & Fun

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding business website - lots of info

Doggy Dynasty - My son-in-law's dog training business



Your Host

Kirt Blattenberger
... single-handedly
redefining what an engineering website should be.

View the YouTube RF Cafe Intro video Carpe Diem!
(Seize the Day!)

Day in Engineering History Archive - April 10

| 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. All will eventually be either verified or removed.
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.

April 10

U.S. Patent Systems Began - Please click here to visit RF Cafe.

1790: The U.S. patent system was established. 1849: Walter Hunt patented the safety pin. 1863: Paul-Louis-Toussaint Héroult, inventor of the electric arc furnace, was born. 1900: Arnold Beckman, founder of Beckman Instruments, was born. 1912: The luxury liner RMS Titanic set sail from Southampton, England, on its ill-fated maiden voyage. 1930: The first synthetic rubber was produced. 1936: The 200" mirror arrived in Pasadena, CA, for Palomar Observatory's Hale Telescope. 1984: The damaged Solar Max satellite was snared by the Challenger space shuttle.
RF Cafe's
Component
Directory
Personally Selected
RF Cafe's
Engineering
Forums
Join the Conversation
RF Cafe
(814) 833-1967
A Disruptive Web Presence
Read About RF Cafe

Webmaster: Kirt Blattenberger

Refresh browser for updated DOW chart
Click here for Yahoo! Finance website