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How many lightbulbs to fry an egg?
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Why do energy saving lightbulbs "flash" when off?
Started by chrisBoard Physics, Astronomy & Cosmology |
Replies: 4 Views: 55910 |
31/10/2009 21:19:16 by LeeE |
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Why do energy-saving lightbulbs take time to achieve full brightness?
Started by DoctorBeaverBoard Technology |
Replies: 11 Views: 24342 |
13/04/2006 22:50:29 by another_someone |
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Is China the best place to make compact fluorescent lightbulbs (CFLs)?
Started by rhadeBoard General Science |
Replies: 13 Views: 10614 |
15/10/2009 13:45:48 by rhade |
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Why do energy-saving lightbulbs take time to reach full brightness?
Started by thedocBoard Physics, Astronomy & Cosmology |
Replies: 0 Views: 3524 |
01/04/2012 09:41:02 by thedoc |
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Why do low energy lightbulbs take so long to reach full brightness?
Started by thedocBoard Physics, Astronomy & Cosmology |
Replies: 2 Views: 4154 |
02/04/2012 09:00:26 by Soul Surfer |