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RF Cafe Engineering & Science Crossword Puzzle

February 17, 2019

Beginning in 2000, I have created hundreds of 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

RF Cafe Engineering & Science Crossword Puzzle February 17, 2019

ACROSS DOWN
1. Substance that removes electrons from another reactant

8. Mathematical relationship of voltage, resistance, and current in a circuit (2 wds.)

14. In physics, what is it that is required to causes a change in the motion of a body

15. International Microwave Symposium (abbr.)

17. World's 1st fully electronic digital computer (abbr.)

19. One cutoff frequency specification for a bandpass filter

22. Resistive component of a capacitor's lumped element model (abbr.)

24. Unit of admittance (pl.)

25. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.)

26. Colorado Springs military school (abbr.)

28. Cyanide (abbr.)

29. European equivalent to the U.L.

30. Lubricant

31. Chemical symbol for radium

33. Chemical symbol for cadmium

34. Spiral-shaped casing surrounding a pump impeller that collects the liquid discharged by the impeller

37. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)

39. Unit of time (abbr.)

41. A sudden and temporary increase in voltage, current, or power

42. Galilean moon

43. Range of servo movement

44. Similar to a laser, but at lower frequencies (pl.)

45. An angle that has less than 90 degrees

46. "Calling any amateur radio station"

48. Indium Gallium Phosphor semiconductor (abbr.)

50. Ringed doughnut shape of many inductor cores

53. Army-Navy specification prefix

54. Chemical symbol for lawrencium

55. The design component of total product cost (abbr.)

56. 1.602E-19 Joules

58. JavaScript (abbr.)

59. File name extension for an ASCII file

60. Chemical symbol for gadolinium

61. BlackBerry or Palm for example (abbr.)

63. Electronics components & batteries supplier based in Japan

66. A common battery cell size

68. Chemical symbol for lithium

69. One of the Ws in WWW

71. Type of chart

73. Front edge of a wing (abbr.)

74. Between-series connectors

75. E=mc^2 guy

2. Transformer, abbr.

3. Satellite of Jupiter discovered by Galileo

4. Small motored tool for model drilling, grinding, shaping, etc.

5. Type of current flow (abbr.)

6. Chemical symbol for neon

7. Capable of operating from land or water

9. Chemical symbol for helium

10. Chemical symbol for manganese

11. International phonetic alphabet letter "S"

12. Chemical symbol for lanthanum

13. Asynchronous Communication Interface Adapter (abbr.)

15. Internet protocol (abbr.)

16. Chemical symbol for selenium

18. Mate to a plug

19. Unit of time (abbr.)

20. Type of flip-flop

21. Method of transmitting meteorological instrument readings from a weather balloon

23. Chemical symbol for tin

27. A BPF specification (abbr.)

29. Chemical symbol for cobalt

32. Sound frequency in the human hearing range (abbr.)

35. Empty space left in rocket fuel tank to allow for fuel expansion

36. ______ velocity - speed necessary to become free of the Earth's gravitational force

37. Flip-flop control input (pl.)

38. CB slang for police speed radar

40. Chemical symbol for strontium

42. Infrared (abbr.)

47. Type of matrix barcode used with laser scanning(abbr.)

48. International phonetic alphabet letter "I"

49. Gun safety and education organization (abbr.)

51. Country of RF Cafe's residency

52. Ratio of a mechanical drawing

53. Chemical symbol for silver

57. 300 Hz to 3 kHz in audio (abbr.)

58. Type of flip flop

61. Programmable Logic Device (abbr.)

62. Mr. de Forest's first name

64. Type of current

65. Deutsche Industrie Normenausschuss

67. Anatech Electronics Inc., (abbr.)

69. Weight (abbr.)

70. Filter type that blocks frequencies in a specified band (abbr.)

71. Ratio of circumference to diameter

72. Chemical symbol for einsteinium


See solution below

 

2019 Crossword Puzzle Archive

Visit the Crossword Express website - RF CafeTake a well-deserved break and try 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.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku

Cruciverbalist:

A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 29

December 22

December 15

December 8

December 1

November 24

November 17

November 10

November 3

October 27

October 20

October 13

October 6

September 29

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September 15

September 8

September 1

August 25

August 18

August 11

August 4

July 28

July 21

July 14

July 7

June 30

June 23

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June 9

June 2

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April 28

April 21

April 14

April 7

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March 24

March 17

March 10

March 3

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February 10

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RF Cafe Engineering & Science Crossword Solution February 17, 2019

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