27 JUL 2018 by ideonexus
Measuring Progress by the Cost of Light
Time is not the only life-enriching resource granted to us by technology. Another is light. Light is so empowering that it serves as the metaphor of choice for a superior intellectual and spiritual state: enlightenment. In the natural world we are plunged into darkness for half of our existence, but human-made light allows us to take back the night for reading, moving about, seeing people’s faces, and otherwise engaging with our surroundings. The economist William Nordhaus has cited the plu...Folksonomies: human progress quantification
Folksonomies: human progress quantification
29 JUN 2013 by ideonexus
The Gas Lamp Brought Networked Collective Life
Wolfgang Schivelbusch (1995) argues that one of the most important
transformations of networked urban life came with the rise of the gas lamp.
The introduction of gas ended the autonomy of oil lamps and candles whereby
each household effectively supplied its own energy needs. Gas represented the
industrialization of light, transforming households into nodes of a centralized
power source, linking the domestic and intimate to larger structures of capital
and the state. In this way, Schivelbusch...Folksonomies: collectivity communalism
Folksonomies: collectivity communalism
Before people became dependent on the grid, they were independent and autonomous.
02 JAN 2012 by ideonexus
Description of Humphrey Davy's Safety Lamp
The final version of the lamp was wonderfully simple and surprisingly small. It was a standard uninsulated oil lamp, approximately sixteen inches high, with an adjustable cotton wick, enclosed in a tall column or ‘chimney’ of fine iron mesh. Astonishingly, the lamp required no other protection. In later models Davy added various improvements, largely designed to withstand rough use in the mine.
Yet the fundamental notion that flame would not pass through gauze appeared so unlikely, so co...Folksonomies: engineering invention
Folksonomies: engineering invention
The flame was exposed, but surrounded by a wire mesh that acted as a heat sink to prevent the flame from igniting the gases surrounding it.
02 JAN 2012 by ideonexus
Davy Refused to Patent His Safety Lamp
John Buddle, now entirely won over by Davy, was also concerned about a reward. By August there were 144 safety lamps ‘in daily use’ at Walls End, and they were rapidly spreading to all the other collieries in the North-East.91 Buddle urged Davy to take out a patent, pointing out that he could not only make his fortune but control the quality of the lamps issued to miners. Davy consistently refused, although he knew his colleague William Wollaston had made a fortune with a patent on proces...Despite the fact that it could have made him a fortune.