What do a wrecking yard, a rock concert and your front door have in common? They each use electromagnets, devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars fr...
This is because the appliance is drawing a lot of energy initially, but that large amount is only needed to get the motor started. Once that happens, this cycle of electromagnetic induction takes over. Particle Accelerators From household appliances, we're moving up to some of the most ...
As I stilled my mind I could again have access to the deep true essential self. This is what we have to do. So it led me into recreating the circuits exploring, I turned my life into a living laboratory to figure out how to access these multi-dimensional states because I knew that i...
Today, astronomers know that the majority of radiation, or light, present in the universe is invisible to human eyes. By looking at the universe in all possible wavelengths, scientists are piecing together a complex picture of the unfathomably vast cosmic environment that we are a part of. It...
With the use of electromagnetic levitation at historic speeds of 310 kilometers per hour, this train presents the opportunity for a faster, cheaper and cleaner mode of transportation.随着电磁悬浮的使用，它的时速达到了历史上最高的310公里，这列火车提供了一个机会，一种更便宜、更清洁的交通方式。And ...
As we pass up through the photosphere, the temperature drops and the gases, because they are cooler, do not emit as much light energy. This makes them less opaque to the human eye. Therefore, the outer edge of the photosphere looks dark due to an effect called limb darkening that accoun...
TEMs are the most powerful electron microscopes: we can use them to see things just 1 nanometer in size, so they effectively magnify by a million times or more.How a transmission electron microscope (TEM) works A transmission electron microscope fires a beam of electrons through a specimen to...
Why do they use such high voltages? To explain that, we need to know a little about how electricity travels.As electricity flows down a metal wire, the electrons that carry its energy jiggle through the metal structure, bashing and crashing about and generally wasting energy like unruly school...
How do electricity and magnetism interact?Non Contact ForcesElectricity and magnetism are both non-contact forces. This means that they both create fields that can influence objects at a distance. We can observe this as a magnet approaches a magnetic substance and suddenly pulls it closer....
Electromagnetic waves transfer energy from one point to another by carrying the energy within themselves as they travel, the same way as all waves do...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...