Oct 2, 2005 · A light bulb is an electrical filament. What you have is a long piece of wire, and when you connect this to a socket, it basically completes a circuit. As electricity passes through, the electrical …

Feb 28, 2017 · We slice open an LED light bulb to see how they work and why we need them.

Apr 1, 2012 · Dave - This is all to do with how an energy saving light bulb works. Conventional old-fashioned light bulbs basically work by putting a lot of electricity through a very thin wire, which gets …

Apr 13, 2008 · How does the light bulb work normally? Energy saving light bulbs and fluorescent tubes (which this experiment should work on too) work in the same way, except that instead of waving a …

Jun 22, 2008 · How does it do it? If you look closely at those vanes, at those panels you'll see that they have a light side and a dark side. One side is soaking up the light, the other is reflecting it. This is the …

Mar 15, 2017 · light-bulb-503881_1920.jpg Power is everywhere in the modern world, and installations are present everywhere we turn. While that means electricity is at our fingertips at all times, it also …

Feb 18, 2011 · What's actually going on in a lightbulb when you switch it on? And why are energy saving bulbs more efficient than normal incandescent ones? Find out in the latest Naked Science Scrapbook.

Jun 3, 2007 · The light therefore reaches you first, then a short while later (depending upon how far away the storm is), the thunder rolls in. So with all that energy knocking around up there, surely we …

Dec 7, 2008 · Light behaves like a wave, different colours have different wavelengths (blue short and red long) and the light waves reflecting from the gaps between the slits will interact with one another. In …

Feb 15, 2008 · White light is of course a mixture of colours and if you were to use LEDs on their own you would need 3 LEDs to make white light. Manufacturers have a cunning way around this problem, …