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Latest Elisha Gray Stories

2011-11-03 03:00:00

If an idea is truly an invention, then it can be patented. This is more important than ever before with impending âœfirst to fileâ patent law, says Mark McKitrick and Kim Sena, authors of a new invention workbook, âœThe Complete Guide to Inexpensive Ideaingâ. Grand Rapids, Michigan (PRWEB) November 02, 2011 Websterâs Dictionary defines âœinventionâ as...

2009-11-05 10:03:00

ST. LOUIS, Nov. 5 /PRNewswire/ -- This year marks two significant milestones in the history of Graybar, a leading distributor of electrical and communications products and related supply chain management and logistics services. First, Graybar celebrates the 140th anniversary of the company's original founding as Gray & Barton in 1869 by inventor Elisha Gray and entrepreneur Enos Barton. Also, this year is the 80th anniversary of the date when Graybar's employees purchased their company...


Latest Elisha Gray Reference Libraries

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2010-10-28 18:58:23

The telautograph transmists electrical impulses recorded by potentiometers at the sending station to servomechanismas attached to a pen at the receiving station. This machine is the precursor to the modern fax machine. It is the first device to transmit drawings to a stationary sheet of paper. Elisha Gray invented and patented the telautograph in 1888. It was publicly exhibited in 1893. The telautograph became popular for sending signatures over long distances and was often used by banks...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.