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.
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Rides: The Complete Second Season
It's a new season of building and racing on "Rides," and without a doubt, this is the top crop yet. Stars like Jay Leno, Christopher Titus and Jack Osbourne make the scene, along with makes such as Lamborghini, Deusenberg, and a couple names that are far too undercover to mention. It's "Rides" as never before ? All new, all fast and of course ? all incredibly cool. The most comprehensive and definitive televisions series on hot rod cars ever produced. Hosted by movie star and car enthusiast Dylan Bruno. Five-Disc Set contains the complete second season of "Rides." Episodes include: Episode 1 - "Drifters" - The biggest rage today. Episode 2 - "Soccer Mom" - A comic and his search for cool in suburbia. Episode 3 - "Eleanor" - Build me a movie star. Episode 4 - "Rat Rods" - Getting the ride down to the basics. Episode 5 - "702 Motoring" - Let's get this party started. Episode 6 - "Joe Rogan's Sick Fish" - Troy, Chip, Joe and a car beyond description. Episode 7 - "Darkside" - Jack Osbourne...
Rides: The Complete Second Season
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Colorado: A Guide for Car Campers Who Hate RVs, Concrete Slabs, and Loud Portable Stereos
If you subscribe to the opinion that televisions, Japanese lanterns, and electric guitars are not essential camping equipment, then The Best in Tent Camping: Colorado should be your constant companion.
Colorado is known for the Rockies, cobalt skies, deep forests, and snow-fed mountain streams, but there are other attractions as well: Mesa Verde, the Black Canyon of the Gunnison, the Great Sand Dunes near the Sangre de Cristo Range, the Uncompahgre Plateau, and more.
The Best in Tent Camping: Colorado is a guidebook for tent campers who like scenic and serene campsites. It's the perfect resource if you blanch at the thought of pitching your tent on a concrete slab and waking up to find your tent surrounded by a convoy of RVs.
The Best in Tent Camping: Colorado will guide you to the quietest, most beautiful, most secure, and best managed campgrounds in the Centennial State. Painstakingly selected from hundreds of camping options, each profiled campground is rated for beauty, noise,...
Colorado: A Guide for Car Campers Who Hate RVs, Concrete Slabs, and Loud Portable Stereos
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lcd tv Crystal Clear: The Struggle for Reliable Communications Technology in World War II
Sharp LC-45D40U 45-Inch HD LCD Flat Panel Television
Take your television viewing experience to new heights with the crisp images displayed on this 45-inch Sharp LCD TV. Tabletop stand included 45-inch screen size LCD display type Built-in tuner ATSC/QAM/NTSC Widescreen 176-degree maximum viewing angles Resolution 1366 high x 768 vertical 1200:1 contrast ratio Stereo Speakers Component video inputs HD component video inputs S-video inputs A/V inputs HDMI inputs This item is not returnable, but it does come with a full-service warranty. For information...
lcd tv Sharp LC-45D40U 45-Inch HD LCD Flat Panel Television
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