How Venus Flytraps Work How Bats Work How does the pesticide Dursban work? How do flies breathe? More Great Links "Dirty Jobs" on the Discovery Channel Suite101.com: Bug Zappers Can Spread Microbes Iowa State University: Bug Zappers are Harmful, Not Helpful Kansas State University: Electrocutio...
How does a halogen light work? How does a three-way light bulb work? How do fireflies light up? How Christmas Lights Work More Great Links Invention of the Light Bulb The Great Internet Light Bulb Book Make a Light Bulb! A 96-year-old light bulb: It's still going First Public Demonst...
Just like the electric model, the gas water heater also has a thermostat, which is made of a small tube with a mercury sensor. The model also has a special sensor called a thermocouple that helps to sense when the pilot light is burning. In case the pilot light is not working, the th...
Next, it's time to clean up the broken bulb. Put on gloves to make sure you don't touch any of the mercury powder. Use a piece of cardboard to scoop up large pieces of glass. Switch to sticky tape to pick up small fragments and shards. Don't use your vacuum cleaner, and make ...
The basic design of a tilt detector is a series of mercury switches. A mercury switch is made up of two electrical wires and a ball of mercury positioned inside a contained cylinder. Mercury is a liquid metal; it flows like water, but it conducts electricity like a solid metal. In a ...
How does a nixie tube work?Nixie tubes work a lot like neon lamps (although not exactly like neon lamps, as we'll see in a moment). Why do all the metal numbers have to be sealed inside a glass bulb? Well, you can't see just by looking, but the glass bulb is filled with a ...
The refrigerator does a great job of keeping foods fresh, but make sure you’re using this trusted appliance efficiently. Putting hot leftovers directly into the refrigerator raises the temperature inside, so it has to work harder -- and burn more energy -- to keep foods cool. Allow your le...
The toaster seems like a pretty simple device, but some questions do come up: How, exactly, does the toaster toast the bread? How do all of the different settings work? How does the toaster know when to pop the toast up? In this article, we'll dissect a typical pop-up toaster ...
How long does it take to change a temperature sensor? The actual process of replacing the coolant temperature sensor is extremely simple. However, the difficult work comes in the preparation of the cooling system - both before and after. Tip: This job should only be completed when the engine...
designers of the headlights had to solve one problem with normal mercury vapor lamps -- the fact that they have long start-up times. Xenon helps solve the start-up problem, as does a special controller. All of these tricks mean that these headlights are expensive now, but mass production ...