Search RFCafe.com                           
      More Than 18,000 Unique Pages
Please support my efforts by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™
Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post
Please Support My Advertisers!
 
  Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
Software: RF Cascade Workbook | Espresso Engineering Workbook
RF Stencils for Visio | RF Symbols for Visio
RF Symbols for Office | Cafe Press
Aegis Power | Alliance Test | Centric RF | Empower RF | ISOTEC | Reactel | RFCT | San Fran Circuits
Innovative Power Products Cool Chip Thermal Dissipation - RF Cafe

PCB Directory (Manufacturers)

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Windfreak Technologies SynthHD PRO - RF Cafe

Mathematical Puzzles
1974 The Old Farmer's Almanac

1974 Old Farmer's Almanac
1974 Old Farmer's Almanac - RF Cafe[Index]

Reproduced here are various Mathematical Puzzles from The Old Farmer's Almanac, published continuously since 1792. All copyrights hereby acknowledged.

As mentioned in an earlier post, a while back I bought a box full of vintage Old Farmer's Almanacs (OFA) at a yard sale, figuring there would be a bunch of good items to post here on RF Cafe and on my Airplanes and Rockets hobby website. Chief amongst the postworthy features is the Mathematical Puzzles section. They are a fair challenge to an engineer's cerebration, contemplation, and deliberation. These particular mathematical posers appeared in the 1974 issue of OFA. #10, while rated a difficulty of 4 (where 5 is most difficult), is really not even a mathematical challenge when you think about it (hint - it's an old riddle you've probably seen before). Enjoy!

Old and New Mathematical Puzzles

Blanton C. Wiggin, Editor

Last year, a number of excellent answers made judging very difficult. So we are proud to announce the 1973 winner: Richard Stegner, Deerfield, Illinois. We made a special exception and awarded two ad hoc second prizes to: Richard L. Collier, Guilderland, New York; and Melzer Smith, Cutler, Maine.

For 1974, we have selected from a large number of fine entries the following fifteen puzzles, arranged in an easy-to-hard order. No calculus or "higher math" needed. We will award one prize of $15 for the best set of solutions to puzzles No. 12 through No. 15 received before April 1, 1974. The answers for these four puzzles are therefore omitted here. After April 1, 1974, however, we will send the answers to these four, together with a discussion of the other answers, to anyone sending a . stamped, self-addressed envelope to "Puzzle Answers." Yankee, Inc., Dublin, N .R. 03444. Our usual $5 offer holds for any original puzzle we use in The 1975 Old Farmer's Almanac. Closing date for these submissions is also April 1, 1974. Entries become the property of Yankee, Inc., and cannot be acknowledged or returned. Editor will choose among duplicates.

Mathematical Puzzles (page 118), 1974 Old Farmer's AlmanacMathematical Puzzles (page 119), 1974 Old Farmer's AlmanacMathematical Puzzles (page 120), 1974 Old Farmer's Almanac


 

 

Posted October 19, 2020

Windfreak Technologies SynthHD PRO - RF Cafe
Windfreak Technologies Frequency Synthesizers - RF Cafe

TotalTemp Technologies (Thermal Platforms) - RF Cafe

KR Electronics (RF Filters) - RF Cafe