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Patents



Patents
Patent For The Electric Guitar
I'll bet you didn't realize that rock and roll owes the creation of the electric guitar to Hawaiian music!
Mar 17, 2006, 5:13pm

Patents
Patent for the Cotton Gin
Designed to separate cotton fiber from seed, Whitney's cotton gin, for which he received a patent on March 14, 1794, introduced a new, profitable technology to agricultural production in America.

Mar 17, 2006, 1:35pm

Patents
Patent for the Electric Lamp
Before the invention of the electric lightbulb, homes were lit by candle, kerosene-oil lamp, or gaslight. All flickered, were fire hazards, and emitted smoke and heat.

Mar 17, 2006, 1:27pm

Patents
Patent for the Telephone
Bell sought something revolutionary: to transmit not only the sound of the human voice, but audible words. With the telephone, Bell wrote in 1878, "It is possible to connect every man's house, office or factory with a central station, so as to give him direct communication with his neighbors."

Mar 17, 2006, 1:15pm

Patents
Patent for the Electric Dynamo
Tesla patented a device to induce electrical current in a piece of iron (a rotor) spinning between two electrified coils of wire. This rotating magnetic field device generates AC current when it is made to rotate by using some form mechanical energy, like steam or hydropower.

Mar 17, 2006, 11:54am




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DICTIONARY



Latest Headlines
US Constitution & The Bill Of Rights
Bill of Rights - Amendments 1-10 of the Constitution
Constitution of the United States
Amendments To The US Constitution
19th Amendment of the US Constitution - Women's Right To Vote
12th Amendment
Election of President
16th Amendment to the US Constitution
Income Tax
Acts
The Volstead Act
The Alien and Sedition Acts
Sherman Act, 1890
Agreements
Purchase of Alaska
Missouri Compromise, 1820
The Agreement of Secrecy
Articles
Articles of Confederation (Part 1)
Articles of Confederation (Part 2)
Bills
Wade - Davis Bill
Budgets of the US Government
Budget of the US Government 2005
Budget of the US Government 2004
Budget of the US Government 2003
Citations
Citations for Dr. Jonas E. Salk and The National Foundation for Infantile Paralysis for the Polio Vaccine
Declarations
Quaker Petition To Congress, 1783
Declaration of War Against Germany, 1917
Universal Declaration of Human Rights
Important Writings, Papers, & Designs
Zimmerman Telegram
The de Lôme Letter
Press Release - U.S. Recognition of Israel (1948)
Patents
Patent For The Electric Guitar
Patent for the Cotton Gin
Patent for the Electric Lamp
Plans
Virginia Plan
Presidential Executive Orders
Executive Order 9981: Desegregation of the Armed Forces, 1948
Executive Order 10924 - Establishment of the Peace Corps, 1961
Executive Order 8802
Proclamations
Thanksgiving - The Continental Congress Gives Thanks
Emancipation Proclamation
A Proclamation For Suppressing Rebellion and Sedition
Resolutions
Joint Resolution - American Indian Religious Freedom, 1978
Senate Resolution 301
The Censure of Senator Joseph McCarthy, 1954
Gulf of Tonkin Resolution, 1964
Speeches
The Silent Majority Speech
"I Have A Dream" Speech (1963)
President Nixon's Phone Call to the Moon
Supreme Court Decisions
Roe V. Wade - Women's Right to Choose
Cherokee Nation v. Georgia, 1831
Gibbons v. Ogden, 1824
Treaties
Antarctic Treaty
Lousiana Purchase Treaty, 1803
Treaty of Paris -1783

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