The easiest way to do this is with a pump timer. However, if your pool is constantly being used, you may need to keep the pump on for up to eight consecutive hours every day, and check the water clarity and chemical balance. Frequently Asked Questions Is it more efficient to run the ...
In the past, space travel has only been possible with the backing of well-funded, huge government space programs. But the creators of SpaceShipOne, the first non-government manned spacecraft, have set out to change that. Space Exploration Image Gallery The ship is already a success on one ...
The cost of a private well ranges from $3,000 to $15,000, depending on how deep you need to go. The deeper the well, the more likely you'll find clean water. Install a filter for better-tasting water. Another benefit of a private well is that you can avoid local watering restrictio...
Air valve of a blimp Photo courtesy Goodyear Air Valves The pilots must be able to vent air from the ballonets as well as add it. This is accomplished by air valves that are located on each ballonet. There are four valves -- two fore, two aft. Helium Valve The pressure of the he...
EcoFlow portable power stations offer a reliable solution to managing the power demands of a sump pump, providing a balance between surge and running wattage and the convenience of a battery- or solar-powered device that can be used indoors and outdoors.ECOFLOW...
Different bird species do arise at different times, and some of the earliest risers certainly nosh on worms. However, so do the later risers; the early risers can't gobble them all up. The most interesting sayings to ponder, though, are the ones that are just plain false. Here are ...
The water vapor condenses -- turns to liquid water. Think of the water beading up on a glass of iced tea on a summer day -- that is an example of water vapor in the air condensing. The same thing happens on the ice-cold freezer coils, except that when the water condenses onto ...
A Well-tuned Network So there you have it. The secret to those electrical signals which tell your heart muscles to contract and tell your brain — by way of your eyes— that what they just saw is the word “brain.” You know, important stuff like that. Naturally, any breakdown in yo...
Also, the DMFC requires a relatively large amount of platinum to act as a catalyst, which makes these fuel cells expensive. Reversible Fuel Cells A reversible fuel cell combines two methods of energy production, uniting one of the previous fuel cell types with a solar or a wind generator. ...
The compressor is a pump driven by a belt attached to the engine's crankshaft. When the refrigerant is drawn into the compressor, it is in a low-pressure gaseous form. Once the gas is inside the pump, the compressor lives up to its name. The belt drives the pump, which puts the gas...