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2/27/2007 Engineering & Science Crossword Puzzle

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.

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

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

RF Cafe: Engineering & science crossword puzzle


1. Chemical symbol for tin

2. Distance between successive sinewave positive peaks, pl.

11. Home state of Los Alamos lab

13. The largest asteroid

14. Image

15. Electromagnetic, abbr.

17. Form a resistor lead

18. Halves of DIPs

19. Greek letter

20. Electromagnetic compatibility, abbr.

22. PC follower

23. A logic gate type

25. Unit of time, abbr.

26. Bulletin Board System

27. Opposite of I.D.

28. Bipolar Field-Effect Transistor

30. Chemical symbol for cobalt

31. Chemical symbol for manganese

32. Digital ___, by Motorola

34. Automatic network analyzer, abbr.

37. Switch position

39. Core & shielding vendor in W. Conshohocken, PA

40. Chemical symbol for nobelium

41. Semiconductor lamp

42. Last statement in a program

43. Coefficient of temperature, abbr.

45. Chemical symbol for lanthanum

46. Sends junk e-mail

50. Chemical symbol for holmium

52. Software engineering tool, abbr.

54. Chemical symbol for calcium

56. The 1800 MHz band for cellphones, abbr.

57. Logarithmic ratio

59. Non-return to zero, abbr.

61. Chemical symbol for thallium

62. A capacitor dielectric

64. Type of simple antenna

66. Chemical symbol for holmium

67. Type of PCB substrate foundation

68. RF design tool vendor in Espoo, Finland

69. Chemical symbol for lithium

70. Overlapping "piconets"

71. Morse Code for "from"


1. Scalar version of velocity

2. One of the Ws in WWW

3. Length times width

4. Air exchange need

5. IC killer

6. RF/microwave software vendor, now Agilent

7. Global Positioning System

8. ____ film

9. Communication between stations by reflecting the radio waves off of the ionosphere, pl.

10. Official Space Shuttle designation, pl.

12. Pointing device

16. Millimeter, abbr.

19. Chemical symbol for niobium

21. Equipment control board

23. Greek letter

24. One component of a complex number, abbr.

26. Maker of power meters in Parsippany, NJ

28. VHF, UHF, ISM, for example

29. Records

31. ELI the ICE ___

32. Keyboard key

33. Component of product cost, abbr.

35. Negation prefix

36. Logic gate

38. Negative temperature coefficient, abbr.

44. Which number system uses only the digits 0 to 7

47. Chemical symbol for palladium

48. An angle that has less than 90 degrees

49. 1E6 ns

51. Layer of the atmosphere that blocks UV energy

53. Chemical symbol for aluminum

54. Complex Instruction Set Computer

55. Asynchronous Communication Interface Adapter

57. Add impurities to semiconductor during processing

58. Threaded fastener

60. Chemical symbol for rhodium

62. Akin to AE, EE, SE, etc., pl.

63. Antenna, abbr.

64. Computer communication scheme, abbr.

65. Last stages in transmitters, abbr.

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.


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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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