I think it has been a long time I left this blog without any post on "Do you know?" and "Green Planet". Well, I'am sorry about that.. Ok, today Do you know will talk about the history of Street Lightning.
400 BCEChinese sitizens use bamboo pipes to carry natural gas capture from volcanic seepage to light their capital city, Peking.
50 BCE
Some public space in Rome have rudimentary lighting after dark. They use large metal oil lamps based on Greek ceramic design that are already 750 years old. With a fibrous wick and a reservoir of vegetable oil.
1807
Gas lights are installed on Landon's Pall Mall by German businessman Frederick Albert Winsor, having first used them to illuminate a garden wall for the King of England's birthday. Gas production and Lighting spreads rapidly across the industrialized world.
1857
French engineers Lacassagne and Thiers install electric lighting on La Rue Impériale in Lyons, France - the first street to be lit by a permanent electric installation.
1885
Auer won Welsbach patents his first gas mantle, later modified into a fine net of asbestos fiber coated with a mix of 99 % thorium and 1 % of caesium. The intense bright light it generates gives gas lighting the advantage over electric for decades to come.
1932
A low pressure sodium lamp is first introduced commercially. it is distinctive because it changes in colour from red to orange to yellow as it warms up. Colour don't show up well in it but it is still used worldwide because of its effecient conversion of power into light.
1961
The high pressure sodium lamp, also known as the high intensity discharge light, comes to market when the US-based General electric lunches the Lucalox, popular because most colour show up well in it and ti is widely used in our country now.
2008
Philips unveils the extraordinary Light Blosson, an LED street lamp with solar panels and "petals" that open to act as wind turbines and generate electricity.
