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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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RF Cafe Engineering & Science Crossword Puzzle
May 3, 2020

As with my hundreds of previous engineering and science-themed crossword puzzles, this one for May 3, 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 May 3, 2020 - RF Cafe

1. He united electricity and magnetism into the concept of the electro-magnetic field (3 wds.)
8. Optical cross-connect (abbr.)
9. Type of digital filter (abbr.)
10. First magnitude star in Auriga
15. A disk operation
17. Certificate of Successful Completion of Examination (abbr.)
19. Sets of poles
20. Basic PN junction component
22. Chemical symbol for neodymium
23. Wire diameter unit (abbr.)
24. Chemical symbol for chromium
25. Internet addresses
27. ____ earth elements
30. Very small aperture terminal
31. Official engineering change document (abbr., pl.)
32. Electromagnetic (abbr.)
34. ___-back transformer
35. Unit of volume (abbr.)
36. Use a squeezing tool for attaching a wire lug
39. One of the first commercial software spreadsheets, (w/123)
41. Volt, meter, pint, pound, eg.
42. Asynchronous Digital Subscriber Line (abbr.)
43. Referring to electrical supply cables
44. Computer monitor cable type (abbr.)
46. Amateur Radio Association (abbr.)
48. Inventor of the high voltage generator that powers the Jacob's Ladder (2 wds.)

2. Chemical symbol for molybdenum
3. The "E" in EHF
4. Chemical symbol for scandium
5. Greek letter
6. Sent a telegram
7. Chemical symbol for erbium
10. Plug-in for computer bus
11. Agilent's EE design software (abbr.)
12. Curve traced out by a point on the circumference of a circle rolling on the exterior of another circle
13. Display type
14. Application Specific Integrated Circuit (abbr.)
16. E=CM 2 guy
18. Makes an adjustment to misalignment
19. Astronomical distance of 3.26 light years
21. Type of reconfigurable memory (abbr., pl.)
25. PCB mask exposing ray (abbr.)
26. Chemical symbol for lanthanum
28. Type of current flow (abbr.)
29. Chemical symbol for einsteinium
33. Monolithic microwave integrated circuit (abbr.)
35. The "C" in CDMA
37. _____-Kutta method in differential equations
38. Permeability-tuned oscillator (abbr.)
39. Be behind in phase
40. The "U" in UHF
44. Chemical symbol for rubidium
45. Filter type that blocks frequencies in a specified band (abbr.)
46. Chemical symbol for argon
47. A common battery cell size

See solution below

2020 Crossword Puzzle Archive

Take 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.