RECORD “SINGLES”
January 10, 1949 - 7-inch diameter 45 rpm, U.S.A.
RCA introduced the “single,” the 7-inch diameter 45 RPM record in the U.S.A single could play eight minutes of sound per side. Columbia had introduced the 12" long-playing vinyl 33 RPM as a new format the previous year. These formats greatly improved upon the 78 RPM records, which were limited to only 5 minutes per side on a 12" disk. Vinyl records were less fragile, and had a lower level of surface noise, but needed new playing equipment. RCA subsequently manufactured a record-player with a wide-diameter spindle to automatically play a stack of singles. The 45 RPM, 7" record was favored by the young, and became successful with the onset of rock and roll. In the UK sales of 45s overtook 78s early in 1958.
BLACK AMERICAN INVENTION
January 10, 1888 - U.S.A.
A U.S. patent was issued for the railway signal to the Black American inventor, A.B. Blackburn (No. 376,362). The type of signal was that designed to be operated by the wheels of a train. A lever was depressed as a train wheel travelled over it, to remotely operate an alert through a mechanical linkage upon the passing of the train. It was designed for use upon a single track railway line for trains passing in one direction. To provide a signal for trains passing in the opposite direction, a similar apparatus would be applied on the opposite rail. This patent was an improvement in mechanical design of his earlier patent No. 309,517 on 23 Dec 1884, in which he also described how a gong was activated to provide the alert.
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The Revolution
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...."
No Man is Above the Law
by Theodore Roosevelt
"..."No man is above the law and no man is below it; nor do we ask any man's permission when we require him to obey it. Obedience to the law is demanded as a right; not asked as a favor."..."
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Cancer Facts & Figures
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.
Drug Abuse
about Facts about Drugs
Facts about drugs can protect against drug abuse. Legal drugs, such as alcohol and tobacco, kill more people than illegal drugs. Tobacco (smoking cigarettes) kills more people than any other drug. Illegal drugs including heroin, cannabis, ecstasy and amphetamines can have unknown or dangerous ingredients. Mixing drugs, especially with alcohol, can be fatal.
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Category Information : Charter Schools
This is our Charter Schools category. If you are interested in Charter Schools, feel free to browse these listings. If you have a site that fits within this category, Submit it for inclusion.
The goal of charter schools is to provide additional educational options with quality outcomes for students and parents. Charter schools are public schools open to all students.
Was initially granted for five years in December 1999. The school opened in August 2000 under the leadership of founding Head Learner, Tony Gerlicz. That year, 121 students were enrolled in seventh...
Operates two schools on New York City’s Lower East Side, each committed to providing its students with the tools and support necessary for success. Our two small public elementary schools ed...
Academic excellence is within reach at Canyon Rim Academy, a new public K-6 charter school located below Parley’s Canyon. Canyon Rim Academy is nestled in the quiet Canyon Rim community of S...
Horseback riding in Las Vegas. Choose from rides that include breakfast, lunch, or a sunset steak dinner. Overnight Las Vegas horseback tours also available.
A leader of Urban Connection provide Mens Tall Tees Shirts, Tall T-Shirts, Hip Hop Tshirts, Urban Tees, Tall Tshirts, Long T-Shirts, Long tees, Polo Shirt in USA from Brandedbasics.
Animal and Pet related classified ads listing pet and animal related products and information only. Our Classified Ads are indexed by state and city and are searchable by zip code. Search for pet r...
Search engine is the term with which we are accustomed with very much. But the web directory is not that same. The web directories are older than search engines according to the time of their invention.
Unfortunately just like humans our pets will age too. With the aging process comes health problems and with health problems comes very expensive vet bills. Research you dog
The course of the River Thames as we know it today was created about 10,000 years ago, by melt water from the ice-sheets that covered much of the United Kingdom during the last ice-age...