CATEGORIES
- Architectural Design - Blueprint
- Banks - Credit Unions
- Big - Small Business
- Careers - Employment
- Commercial Real Estate
- Construction
- Corporations
- Engineering
- Finance
- Industry
- Instant Business
- Insurance
- Manufacturers - Suppliers
- Marketing
- Moving - Storage
- Office Space - Equipment
- Resources
- Services
- Stocks - Bonds - Investments
- Tax
- Vehicles
TODAY IN HISTORY
WIRELESS TELEPHONE AT WHITE HOUSE
November 21, 1919 - White House, U.S.A.
November 21, 1919 - White House, U.S.A.
President Wilson used a radio telephone set up on the south portico of the White House to direct the maneuvers of a dozen army airplanes flying over the Potomac river several miles away. His telephoned directions went direct to the flight commander in the air. The instrument was similar to those used by American aviators in France in the latter part of World War I. Col. C. C. Culver actively developed the equipment. He began the project in Aug 1910. No new invention was needed, only adaptation and adjustment of existing techniques. By Aug 1916, he was able to send a radio telegraph signal from a plane. Enlisting expert help from the telephone companies, by Oct 1917, voice messages could be send between a plane and the ground. The system was put into service for military wartime use.
EDISON'S PHONOGRAPH
November 21, 1877 - New York City, U.S.A.
November 21, 1877 - New York City, U.S.A.
Thomas Edison announced his invention of his "talking machine" - the tin-foil cylinder recorder that preceeded the phonograph. He appears to have envisioned it as a business dictation machine. In Sep 1877, he wrote that its purpose was "to record automatically the speech of a very rapid speaker upon paper; from which he reproduces the same Speech immediately or years afterwards preserving the characteristics of the speakers voice so that persons familiar with it would at once recognize it." The indented tin foil, however, would survive only a few playings. By the first public showing of a phonograph, which took place in New York City in early Feb 1878, its practical applications had not yet been realized.
MEMBER LOGIN
RANDOM QUOTES
-
Rules for Happiness
by Immanuel Kant
"...Rules for Happiness: Something to do, Someone to love, Something to hope for...."
by John Adams
"...The Revolution was effected before the War commenced. The Revolution was in the minds and hearts of the people; a change in their religious sentiments of their duties and obligations. This radical change in the principles, opinions, sentiments, and affections of the people, was the real American Revolution...."
RANDOM FACTS
-
More vehicles
about Stolen On New Year's
More vehicles are stolen on New Year's Day than any other holiday throughout the year. (So does that mean thieves are having their last fling before changing their ways or are they trying for a big score to start the New Year?)
about Besides Lung Cancer
Besides lung cancer, tobacco use also increases the risk for cancers of the mouth, lips, nasal cavity (nose) and sinuses, larynx (voice box), pharynx (throat), esophagus (swallowing tube), stomach, pancreas, kidney, bladder, uterus, cervix, colon/rectum, ovary (mucinous), and acute myeloid leukemia.
Law Office of Kelly Peterson :
LISTING INFORMATION :
LISTING STATISTICS :
- 3902Listing ID :
- Kelly PetersonOwner :
- Regular Listing / LifetimeType :
- April 29, 2014Date Added :
- NeverExpires :
- 4Traffic Out :
- 0Average User Rating :
- 0Total User Votes :
- 0Reviews :
RATE LISTING :
Please rate this link listing.
You must be logged in to be able to rate a listing.USER COMMENTS :
No user reviews have yet been made or approved for this listing.
You must be logged in to be able to leave a comment.