How much time does it take a pulse of light to travel through 180 m of water? The damage caused by electric shock depends on the current flowing through the body; 1 mA can be felt and 5 mA is painful. Above 15 mA, a person loses muscle control, and 70 mA c...
Current Vs Voltage: How Much Current Can Kill You? Why Is High Voltage Considered Dangerous? This is, of course, essential knowledge for safety purposes. On electrical circuit boards and generators, we find cautious messages with the common symbol of danger: a human skull hovering over two cros...
Frequently asked questions about powering a washing machine How much money can solar panels save you? Although you may only use your clothes washer once every few days (or even less), it can still use an impactful amount of electricity. While not as power-hungry as appliances like air co...
That assumes we can catch all of that average bolt of lightning in a large capacitor. If you assume a capture efficiency, that would add a few more calculations. Still, the original question is intriguing. If you wish to take this math experiment a step further, consider how often the U....
For example, if you're using an older analog meter, your utility company only knows how much electricity you have used between a previous reading and a new reading, and they can only get that data by sending a worker out to take the reading. The utility doesn't have insight into the ...
How Much Power Do Common Devices Need? Desktop computer: On average, a desktop computer with amonitorwill consume around 200 watts. Got a bigger screen? That number might rise to around 250 watts. Large color TV: A large color TV also hovers around the 200-250 watt range. ...
The human brain's second amazing feature relating to television is this: If you divide a moving scene into a sequence of still pictures and show the still images in rapid succession, the brain will reassemble the still images into a single, moving scene. Take, for example, these four frames...
George Westinghouse opened that plant in 1895, but the principles of its operation haven't changed much since then. First, engineers build a dam across a river to create a reservoir of stored water. They place a water intake near the bottom of the dam wall, which allows water to flow fr...
Whenever electrical wiring in a building has too much current flowing through it, these simple machines cut the power until somebody can fix the problem. Without circuit breakers (or fuses), household electricity would be impractical because of the potential for fires and other mayhem resulting ...
How much electricity is in the human body? Scientists agree that the human body, at rest, can produce around 100 watts of power on average. This is enough electricity to power up a light bulb. Some humans have the ability to output over 2,000 watts of power, for instance if sprinti...