RF Cafe Engineering & Science Crossword Puzzle
March 3, 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 March 3, 2019

ACROSS DOWN
1. Type of star that emits periodic bursts of energy

6. Opposite of output

11. End of soldering iron

12. Chemical symbol for praseodymium

14. Added an overcurrent protection device

16. Chemical symbol for xenon

17. Plane geometric figure having three straight sides and three angles

20. Chemical symbol for lanthanum

21. The UK's largest defense electronics contractor (abbr.)

22. Wheel attachment point

24. Unit of length (abbr.)

25. Unit of resistance

28. Unit for expressing a ratio (pl.)

32. Type of e-mail address system (abbr.)

34. Infrared (abbr.)

35. Greek letter often used to represent an angle

38. Lowest power level capable of being demodulated (abbr.)

40. One port of an amplifier

41. Time between cyclically recurring events (pl.)

42. Mr. de Forest's first name

43. Unit of frequency (archaic, abbr.)

45. Study for a test just before taking it

47. Workplace safety group (abbr.)

49. 1.602E-19 Joules

51. Spurious RF products created by metal joints (abbr.)

53. Lifetime failure rate curve

56. Decimeter (abbr.)

57. Automated Test Equipment (abbr.)

59. Cable termination type

60. Opposite of a LO

62. Amateur Radio Association (abbr.)

65. Describes a component around which wire is wrapped to make an inductor

68. Miniature threaded RF connector

70. Centimeter (abbr.)

71. Battery cell chemistry type (abbr.)

72. Charged particle

74. Galilean moon

75. Course headings

78. Morse Code for "from"

79. Undesirable background information

82. Chemical symbol for argon

83. Powers pneumatic devices

84. The scalar component of velocity

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

1. Type of chart

2. One type of electron spin

3. ESD protective apparel

4. Government program to bring electricity to farms (abbr.)

5. Compressed image file format

7. A measure of receiver quality (abbr.)

8. Unintentionally change the oscillator frequency

9. Country of RF Cafe's residency

10. Test equipment (abbr.)

11. Temperature-compensated crystal oscillator

13. RF computer network

15. Digital intelligence

17. Chemical symbol for terbium

18. Institute of Electrical and Electronics Engineers

19. The "E" in ELF

23. Chemical symbol for einsteinium

26. Filter type that blocks lower frequencies (abbr.)

27. The result of multiplying the mass of an object by its velocity

29. Connector vendor

30. Chemical symbol for erbium

31. Types of amplfier, slang (pl.)

33. Chemical symbol for palladium

35. Ratio of circumference to diameter

36. Opposite of O.D.

37. Chemical symbol for chlorine

39. Type of component package (abbr.)

41. Last stage in a transmitter (abbr.)

44. Unit of electrical charge

46. Half of the diameter (pl.)

48. Chemical symbol for antimony

50. Unit of apparent power (abbr.)

52. Akin to an EE, CE, AE, etc.

54. Chemical symbol for aluminum

55. Chemical symbol for mercury

58. Chemical symbol for tantalum

60. Chemical symbol for holmium

61. Ratio of output to input power, voltage, current, light, etc.

63. Modulation type (abbr.)

64. Small representative graphic

65. Semiconductor and calculator company (abbr.)

66. Moon of Saturn discovered in 1672

67. A concern of Boolean equations

69. Automatic Testing, Evaluation & Reporting (abbr.)

71. Front end of a rocket

73. Unit of time (abbr.)

74. Input intercept point (abbr.)

76. Flash caused by an electric current ionizing a gas or vapor

77. Discipline for aircraft navigation in low visibility environments (abbr.)

78. Singulated piece of IC wafer

80. Unix, Linux or Windows (abbr.)

81. BS__ - the degree held by many RF Cafe visitors

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


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.

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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

September 22

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

June 16

June 9

June 2

May 26

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF Cafe Engineering & Science Crossword Puzzle Solution March 3, 2019