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Time and Frequency Division

HowStuffWorks Electronics gives you explanations, reviews, opinions, and prices for popular electronics, iPods, home theaters, and other gadgets.

Acentech Inc. is a multi-disciplinary acoustical consulting firm with expertise in all areas of acoustics, including architectural acoustics, audio visual and sound system design, noise control, vibration control, and more.

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

HydroWave - The latest in electronic fishing gear. Designed to Ignire a Feeding Frenzy so big trophy bass will attack you lure with less work on your part. Novice bass fisherman and anglers will be able to catch big trophy fish like the pros. Try it ...

Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias. Ask questions, get answers.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...