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RF Cafe Engineering & Science Crossword Puzzle
May 5, 2019

Since 2000, I have been creating custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. A database of thousands of words has been built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. You will never find a word taxing your knowledge of a numbnut soap opera star or the name of some obscure village in the Andes mountains. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you.

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs or works crosswords.


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Engineering & Science Crossword Puzzle May 5, 2019 - RF Cafe

<click for full size to print>

ACROSS DOWN
1. Degrees of incidence at which a radio signal is refracted in the ionosphere (2 wds.)
10. Chemical symbol for scandium
12. Output intercept point (abbr.)
13. Part of a FOR loop
14. Type of chart
15. Type of distribution, squared
16. Front edge of a wing (abbr.)
18. An ellipse has two of them
20. BASIC looping keyword
22. Chemical symbol for francium
23. Stock symbol for Lockheed Martin
24. Constellation : The twins
26. Official Space Shuttle designation (abbr.)
27. Type of current
28. A common battery cell size
29. Coefficient of temperature (abbr.)
30. Greek letter (micro)
31. Unit of heat
32. Chemical symbol for gold
34. Digital voltmeter (abbr.)
35. Chemical symbol for selenium
37. Chemical symbol for cesium
38. Chemical symbol for gadolinium
39. Opposite of O.D.
41. Sound frequency in the human hearing range (abbr.)
42. Unit of weight
43. Last stage in a transmitter (abbr.)
44. One system's phonetic letter "z"
45. Type of flip-flop
47. Filter type that blocks frequencies in a specified band (abbr.)
48. 10 decibels
49. Filter type that blocks frequencies in a specified band (abbr.)
50. IC killer (abbr.)
52. A false signal produced in a superheterodyne receiver’s circuitry (pl.)
56. Gary Breed's fine magazine on RF & microwaves topics (abbr.)
57. Centimeter (abbr.)
59. Constellation : The lion
61. Network configuration type
63. Switch position
64. Transformer interwinding connection
65. Curly-Q type light bulb (abbr.)
67. Radio signals from the cosmos (abbr.)
68. Parts per million (abbr.)
70. Chemical symbol for tin
71. Perform a calculus function
1. The ten administrative areas established by the FCC for Amateur Radio (2 wds., pl.)
2. Galilean moon
3. Chemical element abbreviated Sn
4. Internet protocol (abbr.)
5. Basic element
6. Plural of locus
7. Chemical symbol for neptunium
8. Image file format name extension
9. Low altitude earth orbit
10. 3 GHz to 30 GHz
11. Distance around the boundary of a circle
17. Science of assuring operation amid dense EM background noise (abbr.)
18. Finite Element Analysis (abbr.)
19. One port of an amplifier
21. Stock symbol for Raytheon
24. Karl Friedrich _____, after whom the unit of magnetic field strength is named
25. International Telecommunications Union
28. System for guiding aircraft (abbr.)
30. Very large unit of apparent power (abbr.)
32. Analog-to-Digital (abbr.)
33. Dimension, with units (pl.)
36. Electrical overstress (abbr.)
38. Chemical symbol for gallium
40. Keyboard key
43. Greek letter
46. Ham's code for "Can you acknowledge receipt?"
48. Digital transmission figure of merit (abbr.)
49. Beat frequency oscillator (abbr.)
51. 10E-1 numerical prefix
53. 1E6 nanoseconds
54. Automatic Testing, Evaluation & Reporting (abbr.)
55. One port on a FET
58. ELI the ICE ___
60. Switch position
62. Computer monitor resolution measure (abbr.)
66. 30 kHz to 300 kHz
68. Chemical symbol for platinum
69. 1/000 of an amp (abbr.)

See solution below

 

2019 Crosswords Archive
Visit the Crossword Express website - RF CafeTake a break from the drudgery by trying your hand at some of these goodies. Every word in the RF Cafe crossword puzzles is specifically related to engineering, mathematics, and science. There are no generic backfill words like many other puzzles give you, so you'll never see a clue asking for the name of a movie star or a mountain on the Russia-China border.

All of these crossword puzzles were created using the fabulous Crossword Express (now called "Magnum Opus") software.

2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | Sudoku

 

June 9

June 2

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May 19

May 12

May 5

April 28

April 21

April 14

April 7

March 31

March 24

March 17

March 10

March 3

February 24

February 17

February 10

February 3

January 27

January 20

January 13

January 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engineering & Science Crossword Solution May 5, 2019 - RF Cafe 

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    BSEE - KB3UON

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