Formulas & Data:
- Electronics
- Mathematics
- Physics
- RF & Microwaves

Parts Vendors:
- all hand-selected

- Amateur Radio
- Vintage Articles:
- Electronics World
- Popular Electronics
- QST
- Radio & TV News
- Radio Craft
- Short Wave Craft
- Wireless World

- Events Calendar
RF Cafe Homepage
Copyright 1999-2015   •−•  ••−•    −•−•  •−  ••−•  •   "RF Cafe" in Morse Code  >> Listen to It <<
- EW & Radar Handbook
- Quizzes       - Software
- App Notes
- Calculators
- Advertise on RF Cafe
- About RF Cafe™
- RF Cafe Shirts & Mugs
- RF Cafe Archives
RF Cafe Book Contest
- RF Cafe on Visit RF Cafe on Facebook Visit RF Cafe on Twitter Visit RF Cafe on LinkedIn
- Tech Humor
- Forums Archive
- Job Board
- Donate to RF Cafe
- Kirt's Cogitations
Custom Search
More than 10,000 searchable pages indexed.
Greetings: There is so much good stuff on RF Cafe that there is no way to list or link to all of it here. Please use the Search box or the Site Map to find what you want - there is a good chance I have it here. Thanks!

Day in Engineering History Archive - May 30

| 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.

May 30

Alexei Leonov logo


1868: Memorial Day (originally Decoration Day) was observed for the first time in the U.S. 1883: A rumor that the recently opened Brooklyn Bridge was in danger of collapsing triggered a stampede that led to the trampling deaths of 12 people. 1911: The first Indy 500 race was run. 1912: Wilbur Wright, of airplane fame, died. 1925: John Cocke, who invented the Reduced Instruction Set Computer (RISC), was born. 1934: Russian Alexey Leonov, the first man to walk in space, was born. 1959: The first experimental hovercraft, the SR.N1 "flew" at Cowes on the Isle of Wight. 1987: North American Philips Company introduced the compact disc video (CD-V), designed to store full motion video and CD-Audio tracks. 1989: Student demonstrators at Tiananmen Square in Beijing erected a 33-foot statue they called the ''Goddess of Democracy'' -- they would later be mowed down by Red Army tanks. 1994: Baron Marcel Bich, who built his business empire by creating throwaway Bic pens, razors and lighters, died. 2003: The final flight of the Air France Concorde SST took place.


Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger… single-handedly redefining what an engineering website should be.

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

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website