What is motion sensor games

What causes lightning and thunder?

What is motion sensor games


what is motion sensor games

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You just touched a metal doorknob after shuffling your rubber-soled feet across the carpet. You've been struck by lightning! Well, not really, but it's the same idea. Your rubber-soled shoes picked up stray electrons from the carpet. Those electrons built up on your shoes giving them a static charge. Static means not moving. Static charges are always "looking" for the first opportunity to "escape," or discharge.

Your contact with a metal doorknob—or car handle or anything that conducts electricity—presents that opportunity and the excess electrons jump at the chance. So, do thunderclouds have rubber shoes? Not exactly, but there is a lot of shuffling going on inside the cloud. Lightning begins as static charges in a rain cloud. Winds inside the cloud are very turbulent. Water droplets in the bottom part of the cloud are caught in the updrafts and lifted what is motion sensor games great heights where the much colder atmosphere freezes them.

Meanwhile, downdrafts in the cloud push ice and hail down from the top of the cloud. Where the ice going down meets the water coming up, electrons are stripped off. It's a little more complicated than that, but what results is a cloud with a negatively charged bottom and a positively charged top. These electrical fields become incredibly strong, with the atmosphere acting as an insulator between them in the cloud.

Lightning happens. The electric field "looks" for a doorknob. Sort of. It looks for the closest and easiest path to release its charge. Often lightning occurs between clouds or inside a cloud. But the lightning we usually care about most is the lightning that goes from clouds to ground—because that's us! As the storm moves over the ground, the strong negative charge in the cloud attracts positive charges in the ground. These positive charges move up into the tallest objects like trees, telephone poles, and houses.

A "stepped leader" of negative charge descends from the cloud seeking out a path toward the ground. Although this phase of a lightning strike is too rapid for human eyes, this slow-motion video shows it happening. As the negative charge gets close to the ground, a positive charge, called a streamer, reaches up to meet the negative charge. The channels connect and we see the lightning stroke.

We may see several strokes using the same path, giving the lightning bolt a flickering appearance, before the electrical discharge is complete. That's five times hotter than the surface of the Sun!

The heated air expands explosively, creating a shockwave as the surrounding what is motion sensor games is rapidly compressed. The air then contracts rapidly as it cools. If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. We can estimate the distance of the what is motion sensor games by counting how many seconds it takes until we hear the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.

If the thunder follows the lightning almost instantly, you know the lightning is too close for comfort! What stores carry green mountain coffee is an important part of weather forecasting. This complete picture of lightning at any given time will improve "now-casting" of dangerous thunderstorms, tornadoes, hail, and flash floods.

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Credit: John Jensenius.

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Oct 09,  · The Aootek LED Solar Outdoor Motion Sensor Light is a straightforward choice for the best outdoor motion sensor lights. Thanks to its three modes, which include Permanent, Security, and Smart to cover all your outdoor light needs and give you some variety. 2 days ago · The sensor will realize wide viewing angles and high resolution shooting by increasing the number of pixels. In addition, it will at the same time enable shooting without motion distortion. Mar 13,  · Use the significant motion sensor. The significant motion sensor triggers an event each time significant motion is detected and then it disables itself. A significant motion is a motion that might lead to a change in the user's location; for example walking, biking, or sitting in a moving car.

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