Things to Do in Portland, Oregon

Portland OKAy

Batteries

In 1748 Benjamin Franklin was able to create an array of charged glass plates, which he gave the term "battery" to. Since then technology and science has advanced to create what we now today call a battery. Different types of chemicals, both wet and dry, have been experimented with to create electricity. The first wet batteries were created by Alessandro Volta in 1800, but the first dry battery didn't come around till the mid 1800's. The first commercially successful dry-cell battery wasen't created untill the late 1800's. As the design and chemical composition of the battery changed, new ideas came to be. The first nickel-cadmium rechargable battery was created by Waldmar Jungner in 1899, and also in 1954 Gerald Pearson invented the first solar battery. Today trillions of batteries based on the early designs are being used in popular devices all around the world.

Batteries are commonly a device in which a chemical reaction is converted into electrical energy. The amount of electricity produced is dependant on what chemicals are used. The size of the battery also determins how much energy can be sustained for what period of time. Batteries are mainly used for portable devices such as cd players, Ipods, flashlights, PDA's, Cell Phones, portable game consoles, or basically any device that requires power where power is not readily available, allowing for portability of the device anywhere in the world. Some batteries can be recharged by supplying energy back to the battery cell, restoring their original chemical composition. Whenever you need to power a device and there is not a ready supply of electricity, or portability is required, batteries come in handy.

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Portland (6) Salem (2)

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Things to Do in Portland, Oregon

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Beaverton (1)		Canby (1)		Lebanon (1)		PORTLAND (1)
Portland (6)		Salem (2)

Albuquerque NM	Anaheim CA	Anchorage AK	Atlanta GA	Baltimore MD	Billings MT
Birmingham AL	Boise ID	Charleston WV	Chicago IL	Cincinnati OH	Columbia SC
Columbus OH	Dallas TX	Des Moines IA	Fargo ND	Hartford CT	Honolulu HI
Houston TX	Indianapolis IN	Inland Empire CA	Las Vegas NV	Little Rock AR	Los Angeles CA
Louisville KY	Memphis TN	Miami FL	Milwaukee WI	Minneapolis MN	Nashville TN
New York City NY	Oklahoma City OK	Omaha NE	Orange County CA	Orlando FL	Philadelphia PA
Phoenix AZ	Portland OR	Providence RI	Raleigh NC	Rapid City SD	Riverside CA
Salt Lake City UT	San Antonio TX	San Bernardino CA	San Diego CA	San Fernando Valley CA	San Francisco CA
San Jose CA	Seattle WA	So Cal Beaches CA	St. Louis MO	Tampa FL	Ventura CA
Virginia Beach VA	Wichita KS

Things to Do In Albuquerque NM	Things to Do In Anaheim CA	Things to Do In Anchorage AK	Things to Do In Atlanta GA
Things to Do In Austin TX	Things to Do In Bakersfield CA	Things to Do In Baltimore MD	Things to Do In Billings MT
Things to Do In Birmingham AL	Things to Do In Boise ID	Things to Do In Boston MA	Things to Do In Charleston WV
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Things to Do In San Diego CA	Things to Do In San Fernando Valley CA	Things to Do In San Francisco CA	Things to Do In San Jose CA
Things to Do In Santa Barbara CA	Things to Do In Seattle WA	Things to Do at So Cal Beaches CA	Things to Do In St. Louis MO
Things to Do In Tampa FL	Things to Do In Ventura CA	Things to Do In Virginia Beach VA	Things to Do In Washington DC
Things to Do In Wichita KS