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April 25, 2010 Engineering & Science Crossword Puzzle


2010 Engineering & Science Crossword Puzzles

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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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.

- Dec 19, Dec 12, Dec 5

- Nov 28, Nov 21, Nov 14, Nov 7

- Oct 31, Oct 24, Oct 17, Oct 10, Oct 3

- Sep 26, Sep 12, Sep 5

- Aug 29, Aug 22

- Jul 25, Jul 18, Jul 11, Jul 4

- Jun 27, Jun 20, Jun 13, Jun 6

- May 30, May 23, May 16, May 9, May 2

- Apr 25, Apr 18, Apr 11, Apr 4

- Mar 28, Mar 21, Mar 14, Mar 7

- Feb 28, Feb 21, Feb 14, Feb 7

- Jan 31, Jan 24, Jan 17, Jan 10, Jan 3

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

RF Cafe - Engineering & Science Crossword Puzzle - 4/25/2010


1. Opposition to the flow of an electrical current (pl.)

9. Early predecessor to an online forum (abbr.)

10. U.S. Spectrum allocation agency

11. Below ELF

12. Pure carrier (abbr.)

13. Centimeter (abbr.)

17. Chemical symbol for polonium

19. 1.602E-19 Joules

21. Electromagnetic surveillance thwarting technology

23. Chemical symbol for niobium

24. 3G_________, RF shield vendor in Concord, Ontario

27. Chemical symbol for arsenic

29. Negation prefix

31. The constellation in which Canopus is located

32. Chemical symbol for nobelium

33. Chemical symbol for silicon

37. Engineering Change Order (abbr.)

38. Type of component package (abbr.)

39. That which has mass and occupies space

43. Describes when a synchronous motor loses phase lock

44. A number which divides another number without remainder

47. RF connector & cable connector manufacturer located in Taiwan

49. Moon of Saturn discovered in 1672

51. Answer to a mathematical problem (pl.)

56. European equivalent to the U.L.

57. Degree of IC sophistication (abbr.)

58. Chemical symbol for aluminum

59. Greek letter (micro)

60. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily

61. Ham's code for "Are my signals fading?"

66. Chemical symbol for tin

67. Electro-_________, RF components & design services company in Palm City, FL

71. PC follower

72. _______ Faraday, English chemist after whom the unit of capacitance is named

74. Chemical symbol for ruthenium

75. Type of current

76. Army-Navy specification prefix

78. Related to FM by a differential

79. Design for Manufacturability (abbr.)

82. 10 decibels

84. Computer monitor resolution measure (abbr.)

86. Audiovisual devices


1. Chemical symbol for rubidium

2. A keyboard key

3. Band between RF and BB

4. Threaded fastener

5. Coefficient of temperature (abbr.)

6. Chemical symbol for nickel

7. Chemical symbol for einsteinium

8. Describes when a synchronous motor loses phase lock (pl.)

9. Bandwidth (abbr.)

12. Chemical symbol for cobalt

14. Very large unit of apparent power (abbr.)

15. Chemical symbol for helium

16. Early instrument for measuring the positions of the heavenly bodies

17. Chemical symbol for lead

18. Front edge of a wing (abbr.)

20. Voice-operated transmit (abbr.)

21. Stock symbol for Texas Instruments

22. ELI the ICE ___

23. Unit of capacitance (pl.)

25. Chemical symbol for thallium

26. 30 kHz to 300 kHz

28. Vector multiplication that returns a vector value

30. Optical cross-connect (abbr.)

31. Applied Computational Sciences, in Escondido, CA (abbr.)

33. Surface Mount Technology

34. Chemical symbol for lutetium

35. Start frequency (abbr.)

36. Chemical symbol for lanthanum

38. Electrical circuit diagram

39. Chemical symbol for strontium

40. The "B" in BGA

41. The "T" in ATE

42. 10^-9 numerical prefix

45. Switch position

46. Next to

47. JavaScript (abbr.)

48. High-speed logic family

50. Amplifier Solutions Corporation, located in Colmar, PA (abbr.)

52. Method of connecting redundant power supplies (pl.)

53. Unit of time (abbr.)

54. One port of an amplifier

55. Unit of time (abbr.)

61. Ham's code for "Answer in prearranged order."

62. Method of sending high-speed digital signals on electric distribution wires (abbr.)

63. Aircraft navigation system (abbr.)

64. Galilean moon

65. Semiconductor and calculator company (abbr.)

66. Metal or plastic rod that connects a potentiometer wiper to a knob

68. Tweaks a filter for the correct response

69. Gun safety and education organization (abbr.)

70. "Calling any amateur radio station"

71. Type of current flow (abbr.)

73. Chemical symbol for europium

75. Decimeter (abbr.)

77. Silicon transistor type (abbr.)

78. Ratio of circumference to diameter

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

81. Electronics manufacturer with "meatball" logo

82. Chemical symbol for bismuth

83. Chemical symbol for lithium

85. Unit of time (abbr.)

See solution below

RF Cafe - Engineering & Science Crossword Puzzle - 4/25/2010

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Kirt Blattenberger - RF Cafe Webmaster

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    Kirt Blattenberger,


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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