Incandescent Lightbulb - a photo on Flickriver

"This year 2012, Canada is phasing out incandescent light bulbs, many other countries around the world have done the same in order to encourage the use of more energy-efficient lighting alternatives." ~Tomitheos

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Did Thomas Edison invent the light bulb?

Toronto medical student Henry Woodward with the help from a Toronto inkeeper Matthew Evans, knowing that light is a form of energy that can be released by an atom, decided to join forces and spend their collaborative efforts on developing a long-lasting lightbulb, around 1873 they invented a glass bulb that housed a carbon filament and nitrogen gas.
They patented their product in 1874 but they did not have enough money to produce and to market the light bulbs, so a year later they sold the patent to American inventor Thomas Edison.

Canadian Archives:
Patent for Woodward & Evans' Electric Light, July 24, 1874

Copyright © 2012 Tomitheos Photography - All Rights Reserved

Taken in: Canada / Ontario / Toronto (show map)

Taken on: February 29, 2012

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by Tomitheos

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Sets appears in: • Ⓒreative ♦ ¤ • Ⓔngineering² ø

Groups appears in: • Imagination • blogTO more » • Engineering as Art « less

Camera: Nikon D40X, f/5.6, 1/100 sec, 30mm (=45mm), ISO 200 (more info) (hide info)

Camera:	Nikon D40X
Aperture:	f/5.6
Exposure Time:	0.01 sec (1/100)
Focal Length:	30mm (35mm equivalent: 45mm)
ISO:	200
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Not Defined
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Contrast:	High
Color Space:	sRGB
Software:	QuickTime 7.7
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