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RF Cafe Science & Engineering Crossword Puzzle
March 8, 2020

As with my hundreds of previous science and engineering-themed crossword puzzles, this one for March 8, 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 March 8, 2020 - RF Cafe 

<click for full size to print>

1. 'Shooting star'
4. Channel used for satellite-to-earth communications
8. Facsimile
10. Ovenized crystal oscillator (abbr.)
11. Determines proper functionality
13. Greek letter
15. UMTS terrestrial radio access (abbr.)
17. Scheduling chart type (pl.)
18. Unit of inductance (abbr.)
19. Set of poles
21. Read-only (abbr.)
22. Modern battlefield technique (abbr.)
23. Color #5
25. PCB metal area where component leads attach (pl.)
27. Chemical symbol for tantalum
28. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
29. Electro-mechanical switching device
32. Type of flip-flop
33. Schema for computer or device presentation to the operator (abbr.)
34. Chemical symbol for lead
35. 12 inches (pl.)
37. Stock symbol for Linear Technologies
38. Chemical symbol for einsteinium
40. Unit of length (abbr.)
41. Chemical symbol for tin
42. _____ rule, a 1950s engineer's tool
43. Permeability-tuned oscillator (abbr.)
44. Chemical symbol for neodymium
45. Joins end-to-end
47. Hedy _____, Hollywood actress with first patent for spread spectrum communications
49. Greek letter used for frequency
50. Chemical symbol for helium
51. Switch configuration (abbr.)
53. Chemical symbol for palladium
54. Have a chemically induced effect
56. Circuit path with very high or infinite impedance
59. ELI the ICE ___
61. Fuses metals together using heat
62. Electromotive force (abbr.)
64. World's largest yearly convention of gadget and device manufacturers (abbr.)
66. Negative terminals
67. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
1. Software function selection mechanism
2. ______ velocity - speed necessary to become free of the Earth's gravitational force
3. Part of 67 Across
4. One who DXs
5. Robert ______-Watt, "Father of Radar"
6. Chemical symbol for lithium
7. Gun safety and education organization (abbr.)
9. Automatic Testing, Evaluation & Reporting (abbr.)
10. Type of logic gate
12. A type of capacitance or inductance
13. Code for a type of electrical wire insulation (abbr.)
14. Constellation : The little bear (2 wds.)
16. Min______ and Max_____, in a Karnaugh map
17. Ratio of circumference to diameter
18. Akin to EEs, CEs, AEs, etc. (abbr., pl.)
20. Test equipment vendor
23. The "Ge" in SiGe
24. BS__ - the degree held by many RF Cafe visitors
25. Software object reference names
26. Small motored tool for model drilling, grinding, shaping, etc. (pl.)
30. Filter type that blocks upper frequencies (abbr.)
31. Radio signals from the cosmos (abbr.)
33. Electrical safety organization (abbr.)
36. Electromagnetic (abbr.)
37. Chemical symbol for lawrencium
39. Chemical symbol for silicon
41. A "0" or a "1," for instance
42. Alloy of iron and low percentages of carbon, manganese, chromium, etc.
43. Related to FM by a differential
45. Manufacturer of project boxes
46. Screw feature that gives it holding power
48. Referring to atoms
49. Silicon transistor type (abbr.)
51. Society of Civil and Structural Engineers (abbr.)
52. Chemical symbol for platinum
55. Type of data conversion device (abbr., pl.)
57. Unit of capacitance (abbr.)
58. Current summing point
60. A common battery cell size
63. Chemical symbol for rhodium
65. Chemical symbol for strontium 

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 | Sudoku

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November 15

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August 30

August 23

August 16

August 9

August 2

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July 12

July 5

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Engineering & Science Crossword Solution March , 2020 - RF Cafe

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