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Holiday Happenings
Gifts for all Occasions |
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Holiday Happenings : Big Brain Bang : Invention Evolution
Great inventions evolve over time. Alexander Graham Bell's telephone looks nothing like today's cell phone. Edison's early phonographs look nothing like today's mp3 players.
TELEPHONE
The earliest forms of telegraphy were probably smoke, fire or drum signals. Then there was the Cooke and Wheatstone five needle telegraph of 1837 which enabled Joseph Henry to send an electronic current over wire to activate an electromagnet which caused a bell to strike. Samuel F.B. Morse with his partner Alfred Vail, improved on this invention by developing the simple operator key in 1838. Using a series of dots and dashes known as Morse Code, messages could be sent long distances. You can read more about it in
Lightning Man : The Accursed Life of Samuel F. B. Morse
RECORDING SOUND
From tin foil, wax cylinders, glass discs, vinyl records, magnetic tape, CD's, to pure digital memory, sound recording has come a long way.
Celebrate the inventors and the inventions that bring music, laughter, stories, and learning into our lives through sound recording.
Discovering Antique Phonographs
Gifts for scientists, engineers, teachers, inventors, students, musicians, techno geeks, historians, and all intelligent life on this planet.
More gifts for lovers of the arts
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