Archive for the 'Inventor' Category

HISTORY WAS MADE ON THIS DAY

todayinhistory

carlata bradley
CARLATA BRADLEY

Robben Island Museum and Nelson Mandela Gateway

Today in history, February 11: Nelson Mandela released from prison | news.com.au — Australia’s ...

Nick Sutton on | Nelson mandela, Newspaper headlines, First black president

Nelson Mandela, Free | The New Yorker

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DEMONSTRATION OF ‘’TELEVISOR’’ IN 1926

Scotsman John Logie Baird conducted the first public demonstration of a new fangled invention ...    
    
    
    

On January 26, 1926, John Logie Baird (1888 – 1946) a Scottish
inventor, gave the first public demonstration of a true television
system in London (above), which launched a revolution in the
communication and entertainment fields.

Baird’s invention, a pictorial-transmission machine he called
a “televisor,” used mechanical rotating disks to scan moving
images into electronic impulses. This information was then
transmitted by cable to a screen where it showed up as a low-
resolution pattern of light and dark.

Baird’s first television program showed the heads of two
ventriloquist dummies, which he operated in front of the
camera apparatus out of view of the audience (below).          

    

Baird Demonstrating His Television, 1920s Photograph by Sheila Terry ...

John Logie Baird
The original television model, invented by the Scottish
television pioneer John Logie Baird.

Highlights – MZTV

The first recorded television picture taken from a TV screen, 1926.
This image is the first recorded picture taken from a TV
screen.

    
    
    

        
        
        
       

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A NEW EREA OF COMMUNICATION IN 1901

Evolution Of Inventions: RADIO

Irish-Italian inventor Guglielmo Marconi ushered in a new era of
global communications, sending the first radio transmission
across
the Atlantic Ocean on this day in history, Dec. 12, 1901.

The message was the letter "s" in Morse code (dot-dot-dot). But
it proved after years of advances by Marconi that radio could
make the world a smaller place.

The wireless signal traveled 2,000 miles from a transmitting
station in Poldhu, Cornwall, in the far southwestern
corner of
England
, to a receiving station in St. John’s, Newfoundland.

Guglielmo Marconi Photograph by Miriam And Ira D. Wallach Division Of Art, Prints And ...
Guglielmo Giovanni Maria Marconi
(25 April 1874 – 20 July 1937)

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INVENTION ANNOUNCED ON THIS DAY

Graphophone | Cinéma, Opéra, Radios

The phonograph was invented in 1877 by Thomas Edison,
Alexander Graham Bell‘s Volta Laboratory made several
improvements in the 1880s and introduced the graphophone,
including the use of wax-coated cardboard cylinders and a
cutting stylus that moved from side to side in a zigzag groove
around the record. In the 1890s,
Emile Berliner initiated the
transition from
phonograph cylinders to flat discs with a spiral
groove running from the periphery to near the center, coining
the term gramophone for disc record players.

Edison's Invention of the Phonograph
Thomas Alva Edison (February 11, 1847 – October 18, 1931)

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THREE-POSITION TRAFFIC LIGHT PATENT

 Garrett Morgan - Garrett - Image 7 from Photos: African-American Inventors | BET

Garrett Morgan, Inventor of the Improved Traffic Signal | www.AllgaierPatentSolutions.com
Garrett Augustus Morgan Sr.
(March 4, 1877 – July 27, 1963)

Safer Stop and Go: Garrett Morgan’s Traffic Signal Legacy | FHWA

On November 20, 1923, the U.S. Patent Office grants Patent No.
1,475,074
to 46-year-old inventor and newspaperman Garrett
Morgan for his three-position traffic signal. Though Morgan’s
was not the first traffic signal (that one had been installed in
London in 1868), it was an important innovation nonetheless:

By having a third position besides just “Stop” and “Go,”
it regulated crossing vehicles more safely than earlier
signals had.

Morgan also invented a "safety hood smoke protection device"



posted by Bob Karm in African American,ANNIVERSARY,HISTORY,Inventor,Patent,Safety and have No Comments