p-type and n-type. These join together to create what is called a p-n junction. This joining creates an electric field, forcing positively charged particles to move in the opposite direction of negatively charged particles.
When smoke enters the chamber, however, the smoke particles scatter the light and some amount of light hits the sensor: The sensor then sets off the horn in the smoke detector. Photoelectric detectors are better at sensing smoky fires, such as a smoldering mattress. Did You Know? Fire ...
Fracking fluid is a mix of water, chemicals, and solid particles used to penetrate and fracture underground rock. The EPA has identified over a thousand chemicals that have been used in fracking fluid and many are considered harmful to human health. Other ingredients are considered trade secrets....
Well, they’re huge, magnetized gas clouds that’re thrown from the Sun during a big atmospheric storm.They erupt from the Sun over the course of several hours.These huge clouds are made of billions of tons of those charged particles—that rush toward the Earth at incredibly high speeds....
When you squeeze a gas into less space, you increase its pressure and store energy inside it, which you can put to use some time later. We call this potential energy—because it has the ability to do something useful in the future. A compressed gas stored in a tightly sealed container ...
Small particles in the disk stick together and make bigger pieces, like building blocks, which turn into baby planets. When the baby star gets really hot, it starts to shine by turning hydrogen into helium, and that's when it becomes the sun. The baby planets orbit, they collect more pie...
PROBLEM TO BE SOLVED: To provide a method of collecting particles in gas and a nozzle for collecting the particles in gas capable of efficiently separating and collecting the particles (aerosols) contained in the dust-containing gas.SOLUTION: A nozzle 10 has a contraction part 14, an exhaust ...
These trails enabled scientists to more easily find the tiny particles from space. Aerogel's durability allowed the dust collector to return from space intact with not a single aerogel tile missing. Scientists have been able to study the dust and crystals contained in the aerogel and await the ...
Plastic water bottles then break down into microplastic particles that pollute the water and our bodies, with the average person ingesting thousands of bits of plastic every year. So, how do we reconcile wanting to drink more water, but also wanting to protect the environment, and by extension...
How do gases differ from liquids?States of Matter:There are four states of matter that are present naturally. These are solid, liquid, gas and plasma. In solids, the particles are arranged in a stable state. Anything that flows is known as fluid. Liquids and gases are known as fluids. ...