Crystal Clear: The Struggle for Reliable Communications Technology in World War II
Quartz crystal— a technology that changed the tide of World War II
Some of the defining leaps in technology in the twentieth century occurred during the Second World War, from radar to nuclear energy. Often left out of historical discussions are quartz crystals, which proved to be just as pivotal to the Allied victory— and to post-war development— as other technologies. Quartz crystals provided the U.S. military, for the first time, with reliable communication on the front lines, and then went on to become the core of some of the most basic devices of the post-war era, from watches, clocks, and color televisions, to cell phones and computers.
In Crystal Clear, Richard Thompson relates the story of the quartz crystal in World War II, from its early days as a curiosity for amateur radio enthusiasts, to its use by the United States Armed Forces. It follows the intrepid group of scientists and engineers from the Office of the Chief Signal Officer of the U.S. Army as they raced to create an effective quartz crystal unit. They had to find a reliable supply of radio-quality quartz; devise methods to reach, mine, and transport the quartz; find a way to manufacture quartz crystal oscillators rapidly; and then solve the puzzling "aging problem" that plagued the early units. Ultimately, the development of quartz oscillators became the second largest scientific undertaking in World War II after the Manhattan Project.
Bringing to light a little-known aspect of World War II, Crystal Clear offers a glimpse inside one of the most significant efforts in the annals of engineering.
Jumble Grab Bag by Tribune Media Services, ISBN 157243273X
Everyone who has read a newspaper recognizes Jumble "RM", the clever and humorous scrambled word game. Featuring a series of scrambled words coupled with a cartoon and riddle, these puzzles are a national tradition.
- Carried daily in nearly 500 major newspapers around the world
- Enjoyed by millions of readers
- Mentioned in hit televisions shows Friends, Seinfeld, and The Simpsons
Check out this new eclectic collection of Jumbles "RM", pulled straight from our puzzle files.
Jumble Grab Bag by Tribune Media Services, ISBN 157243273X
DLP > Jumble Grab Bag by Tribune Media Services, ISBN 157243273X
The Purpose and Power of Love and Marriage
Probably no other dimension of human experience has been pondered, discussed, debated, analyzed, and dreamed about more than the nature of true love. Love is everywhere -- in songs and in books, on televisions and on movie screens.
The Purpose and Power of Love and Marriage
DLP > The Purpose and Power of Love and Marriage
Acer XD1170D Multipurpose Projector
Features:
- DLP (Digital Light Processing) technology from Texas Instruments
- Aspect Ratio: 4:3 native, 16:9 wide
- Projection Mode: Front, rear, front ceiling, rear ceiling
- Horizontal Scan Rate: 31.5kHz - 100kHz
- Vertical Refresh Rate: 56Hz - 85Hz
- 16.7 million displayable colors
- Keystone Correction: +/- 16
- Video Compatibility: NTSC (3.58/4.43), PAL (B/D/G/H/I/M/N), SECAM (B/D/G/K/K1/L), HDTV (720p, 1080i), EDTV (480p, 576p), SDTV (480i, 576i)
- Native Resolution: SVGA (800 x 600)
- Maximum Resolution: SXGA (1280 x 1024)
- 2200:1 Contrast Ratio
- Brightness - ANSI Lumens: 2300 standard mode, 1840 economy mode
- Digital Zoom
- Integrated Speaker: 1 x 2.0W
- I/O Connectors Computer/AV Input: HDB 15-pin D-sub (VGA/component/HDTV), 3.5mm audio mini
DLP > Acer XD1170D Multipurpose Projector
InFocus LP120 DLP 1000 Lumen Business Projector
- The InFocus LP120 DLP 1000 lumen business projector is a compact, powerful business tool
- 1000 ANSI lumens of power
- 400:1 contrast ratio
- 1024 x 768 DLP XGA resolution
- Cutting-edge DLP (Digital Light Processing) technology for sharp images and rich color
- 16.7 million colors
- 2 watt stereo speaker built in
- Zoom lens with manual focus and manual zoom adjust
- Wireless remote control
- Weighs only 2 lbs.<
DLP > InFocus LP120 DLP 1000 Lumen Business Projector
Crime Fiction
"Crime Fiction" provides a lively introduction to what is both a wide-ranging and hugely popular literary genre. Using examples from a variety of novels, short stories, films and televisions series, John Scaggs:
*presents a concise history of crime fiction - from biblical narratives to James Ellroy - broadening the genre to include revenge tragedy and the gothic novel
*explores the key sub-genres of crime fiction, such as "Rational Criminal Investigation," "The Hard-Boiled Mode," "The Police Procedural" and "Historical Crime Fiction"
*locates texts and their recurring themes and motifs in a wider social and historical context
*outlines the various critical concepts that are central to the study of crime fiction, including gender, narrative theory and film theory
*considers contemporary television series like "C.S.I.: Crime Scene Investigation" alongside the "classic" whodunnits of Agatha Christie.
Crime Fiction
DLP > Crime Fiction
Summer Fun Jumble: Lazy Day Word Play by Cheryl Leonhardt, ISBN 1572431148
Everyone who has read a newspaper recognizes Jumble "RM", the clever and humorous scrambled word game. Featuring a series of scrambled words coupled with a cartoon and riddle, these puzzles are a national tradition.
- Carried daily in nearly 500 major newspapers around the world
- Enjoyed by millions of readers
- Mentioned in hit televisions shows Friends, Seinfeld, and The Simpsons
Check out this new eclectic collection of Jumbles "RM", pulled straight from our puzzle files.
Summer Fun Jumble: Lazy Day Word Play by Cheryl Leonhardt, ISBN 1572431148
DLP > Summer Fun Jumble: Lazy Day Word Play by Cheryl Leonhardt, ISBN 1572431148