Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Stencils for Visio RF & EE Shapes for Word Advertising RF Cafe Homepage Sudoku puzzles Thank you for visiting RF Cafe!
everythingRF RF & Microwave Company Directory (h) - RF Cafe

The Pre-Plastic Era - Not So Long Ago
Kirt's Cogitations™ #136

The Pre-Plastic Era - Not So Long Ago

The next time you watch an old B&W movie, notice the absence of plastic items. Metal, wood, fabric and glass were the materials of the era. It wasn't until after WWII, in "The Synthetic 50s," that plastics began assuming what would become a ubiquitous presence in everyday life. The first man-made plastic -- called Parkesine -- was created by Alexander Parkes who first publicly demonstrated it at the 1862 Great International Exhibition in London. Cellophane was invented 1908, PVC was patented in 1913, Teflon in 1938 (kept secret by the military until the early 60s), nylon in 1939, and Styrofoam® in 1954.

< Previous                      Next >

A huge collection of my 'Factoids' can be accessed from my 'Kirt's Cogitations' table of contents.

Topical Smorgasbord, another manifestation of Factoids, are be found on these pages:

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |

All pertain to topics that are related to the general engineering and science theme of RF Cafe.

ERZIA (RF amplifiers, wireless, communications) - RF Cafe Rohde & Schwarz RTB2000 Digital Oscilloscope - RF Cafe
Res-Net Microwave - RF Cafe Antenna Test Lab - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2018
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com

spacer