32 computers controlled the freemont street lights from 2004 on.
32 computers controlled the freemont street lights from 2004 on.
how many computers controlled the freemont street lights from 2004 on?
32
an induction lamp features extremely long lamp life (100,000 hours), energy efficiency, high color rendering index, and a color temperature close to incandescent lights. the life of induction (also known as electrodeless fluorescent) lamps is negatively affected by heat, particularly as the temperature exceeds 35 degrees celsius (95 degrees fahrenheit). since temperatures in this range commonly occur during early night hours in the summer in much of the us, induction lamp applications have not extended beyond test and demonstration projects for street lighting. the larger size of the induction lamps also inhibits the effective control of the light they emit, limiting their use to lower mounting applications. in 2009, pseg in new jersey began using induction lighting from us lighting tech, inc (irvine, ca) to replace very old and even some pre-2008 mercury vapor lights, and have had success in their reliability and output of the fixtures. unfortunately, some failed induction lights were spot replaced with the hps lights that were being removed to begin with and many new installs, pseg is still using hps. an updated design of the induction lights is now being used and these seem more reliable and brighter than the original design. beginning in september 2011 the city of san diego, ca will replace some 35,000 street lights with induction lamps costing $16,000,000.00. in mexico, the city of linares and acapulco also have begun the replacement of 6,500 and 42,000 street lights with induction lamps from amko solara lighting (taipei, taiwan), selected for their smart controls, since october 2011. a portion of these street lights from amko will feature smart grid compatibility to allow the lights to be remotely monitored and controlled via the internet.
history of street lighting in the united states
the original edison bridge was built to carry the tamiami trail, which had previously crossed the river on a narrow wooden bridge upstream that opened on march 12, 1924. this bridge was located in east fort myers at freemont street and connected to what is today known as old bridge road in north fort myers. construction of the bridge at freemont street was initially started by a private company with the intention of making it a toll bridge. lee county planned to use the freemont street bridge for its portion of the planned tamiami trail, but the federal government would not designate it as part of a u.s. highway if the bridge had a toll. so, the county purchased the bridge and completed its construction.
edison bridge (florida)