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Familiar Quantities and Subjects Technical Challenge

Familiar Quantities and Subjects Technical Challenge - RF Cafe88 K on a P. 27 V of H K. 24 H in a D. Do you remember those kinds of puzzles where you have to figure out what is being referred to? The first one is 88 Keys on a Piano, the second 27 Varieties of Heinz Ketchup, and the last is 24 Hours in a Day. If you like tackling such challenges as associating familiar quantities with their corresponding subjects, then you'll want to check out the list I created below that all have science and engineering themes. If this proves to be popular, I'll do another - hopefully including suggestions from y'all. Good luck. The answers are at the bottom of the page.

  • 88 C in the S
  • 1 C G in a T V T
  • 5/8 C D per F D
  • 2 S J in an NPN T
  • 3 D per F of 2 (P)
  • 6 D per F of 2 (V)
  • 16 O in a P
  • 2 P C in a L L
  • 2080 M-H in a M-Y
  • 6 S M
  • 180 D around the S C
  • 4 Q in a C C G
  • 9 P in the S S (I P)
  • 17 E P in the S M
  • 98 E in the P T (N-O)
  • An O per F of 2
  • 2 P in a C
  • T D in 1948 by B, B and S
  • 3 R in a P or T A
  • 75 O C I of an F-T C C
  • 1 C per S in a H
  • 4 S on a Q A
  • 3 P on a C
  • 2 M L on a D-S P C B


Engineering Humor - RF CafeThese tech-centric jokes, song parodies, anecdotes and assorted humor have been collected from friends and websites across the Internet. This humor is light-hearted and sometimes slightly offensive to the easily-offended, so you are forewarned. It is all workplace-safe.

Humor #1, #2, #3














  • 88 Constellations in the Sky
  • 1 Control Grid in a Triode Vacuum Tube
  • 5/8 Centigrade Degree per Fahrenheit Degree
  • 2 Semiconductor Junctions in an NPN Transistor
  • 3 Decibels per Factor of 2 (Power)
  • 6 Decibels per Factor of 2 (Voltage)
  • 16 Ounces in a Pound
  • 2 Parallel Conductors in a Ladder Line
  • 2080 Man-Hours in a Man-Year
  • 6 Simple Machines
  • 180 Degrees around the Smith Chart
  • 4 Quadrants in a Cartesian Coordinate Graph
  • 9 Planets in the Solar System (Including Pluto)
  • 17 Elementary Particles in the Standard Model
  • 98 Elements in the Periodic Table (Naturally-Occurring)
  • An Octave per Factor of 2
  • 2 Plates in a Capacitor
  • Transistor Discovered in 1948 by Bardeen, Brattain and Shockley
  • 3 Resistors in a Pi or Tee Attenuator
  • 75 Ohm Characteristic Impedance of an F-Type Coaxial Connector
  • 1 Cycle per Second in a Hertz
  • 4 Sides on a Quad Antenna
  • 3 Ports on a Circulator
  • 2 Metal Layers on a Double-Sided Printed Circuit Board






Posted  February 8, 2015

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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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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