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RF Cafe Science & Engineering Crossword Puzzle
February 9, 2020

As with my hundreds of previous science and engineering-themed crossword puzzles, this one for February 9, 2020, contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have built up over nearly two decades. Many new words and company names have been added that had not even been created when I started in the year 2002. 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 February 9, 2020 - RF Cafe 

<click for full size to print>

ACROSS DOWN
1. A type of jet fighter
8. Mathematical relationship of voltage, resistance, and current in a circuit (2 wds.)
15. Energy possessed by a body in motion
16. Digital transmission figure of merit (abbr.)
18. Measured
20. Largest broadcaster in the UK (abbr.)
21. Test point (abbr.)
22. Relating to the sun
24. Chemical symbol for gallium
25. World's largest yearly convention of gadget and device manufacturers (abbr.)
26. Chemical symbol for lead
27. Number is defined as a one followed by 100 zeros
28. Aircraft tracking system (pl.)
30. 1,000 seconds (abbr.)
31. Greek letter (micro)
32. Sent a file over a network (abbr.)
34. Unit of volume (abbr.)
36. Introduce unintended amplitude changes
39. Put a new program on a computer
43. Applies a lubricant
44. National Television System Committee (abbr.)
45. International Amateur Radio Union (abbr.)
46. Light
47. Helium, iron, silicon, or uranium, for example
49. Electromagnetic surveillance thwarting technology
51. Network department (abbr.)
52. Relating to sound
55. Unit of time (abbr.)
57. __ + 56 Down, this website's title
59. The ringed planet
62. Frequency band at high end of audio spectrum
65. 1/000 of an amp (abbr.)
66. Electrical overstress (abbr.)
68. Chemical symbol for polonium
69. The Brits call them valves
71. Chemical symbol for selenium
72. Electromotive force (abbr.)
73. Analog multimeter company
76. Stock symbol for National Semiconductor
77. Vacuum tube with five electrodes
79. Named a software object
80. Digital counter input line to set an initial value (pl.)
1. Service-Independent Building Blocks
2. RF connector type
3. BS__ - the degree held by many RF Cafe visitors
4. Prefix for 10E-18
5. High power density battery chemistry (abbr.)
6. Coefficient of temperature (abbr.)
7. 10 decibels
9. 1/100 meter (abbr.)
10. 1000000 prefix
11. Network configuration type
12. Front edge of a wing (abbr.)
13. Flash caused by an electric current ionizing a gas or vapor
14. 5 work days
15. 1E3 bits per second (abbr.)
16. Threaded fastener
17. ____ earth elements
19. Type of spread spectrum that does not use frequency hopping (abbr.)
22. Power-up with gradual application of current and/or voltage
23. Antenna driven element (pl.)
27. Triangular joint filler added for strength (pl.)
29. A triangle that has all three sides unequal in length
31. 1/1000 prefix
33. Unit of capacitance (abbr.)
35. Object orientated programming term
36. Singulated piece of IC wafer
37. Exponent that returns the original number
38. Stock symbol for Raytheon
40. The design component of total product cost (abbr.)
41. Add two or more inputs
42. Stock symbol for Lockheed Martin
48. Chemical symbol for cadmium
50. Amateur Radio Emergency Service (abbr.)
53. Balun with both ports unbalanced
54. Thing in a bill of material
56. 57 Across + ____, the world's best engineering website
58. Thin metallic shield material around coax cable
60. Nearest and furthest points to the center of gravitational attraction for a body in orbit
61. Device to assist in the performance of a chore
63. RF engineer's degree
64. Glass device is used for focusing light
65. Multichannel multipoint distribution service
67. Miniature threaded RF connector
70. Broadband Signal Intrusion (abbr.)
72. End of transmission (abbr.)
74. Chemical symbol for lead
75. Chemical symbol for neon
77. Chemical symbol for praseodymium
78. Test equipment (abbr.)

See solution below

 

2020 Crosswords 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.

2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | Sudoku

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October 4

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August 30

August 23

August 16

August 9

August 2

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Engineering & Science Crossword Solution February 9, 2020 - RF Cafe

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