In the physics classroom, content based on superheroes can be used in support of learning materials on topics such as optics, advanced materials, kinematics, and the electromagnetic (EM) spectrum. Studies have highlighted several student preconceptions with regards to different radiation types. For ...
While the shortest and longest wavelengths of the visible light could be the most visible, the most energy efficient and aesthetically pleasing waves are the shortwave infrared (SWIR) and microwave frequencies.UVUltraviolet (UV) radiation is a part of electromagnetic spectrum. It can b...
REALLY? WHAT IT IS, HOW TO FIX ITThe frequency spectrum is a fuzzy thing to explain. It is that range of frequencies used by all radio or wireless services. It is air or free space. It is what has been called the "ether." It is the invisible medium that supports the transmission ...
EM radiation can range from very low energy to very high energy, and we call this span the electromagnetic spectrum. Within the EM spectrum, there are two types of radiation -- ionizing and non-ionizing. Feeling a bit overwhelmed? Don't worry, we'll explain all this in detail on the ...
This article will explain how a hologram, light and your brain work together make clear, 3-D images. All of a hologram's properties come directly from the process used to create it, so we'll start with an overview of what it takes to make one. Special Thanks Special thanks to ...
When you've done that, you fire an electron beam down through the specimen from a giant electron gun at the top. The gun uses electromagnetic coils and high voltages (typically from 50,000 to several million volts) to accelerate the electrons to very high speeds. Thanks to our old friend...
The quantum helped explain why such a body emits radiation mostly in the middle of the electromagnetic spectrum, rather that in the ultraviolet as predicted by classical theory. Planck's explanation posited that light consists of discrete packets of energy called quanta, or photons, and that the...
The team collaborates not only to showcase Webb’s images, but also to explain them and help readers immerse themselves in exciting astronomical discoveries. As we like to say, the universe is for everyone! Explore all of Webb’s news releases or take a tour through its extensive image ...
What's happening here is a neat trick called wireless (induction) charging, and it's the power behind everything from rechargeable toothbrushes and phone charging mats to the latest wireless recharging bays for electric cars. We're about to take a closer look at how it works, but if you ...
Of course, further along the electromagnetic spectrum, security cameras and nanny cams can already track individuals with ease. “You’ve got to remember: the context you get out of the camera is just crazy,” says Taj Manku, CEO of the Wi-Fi sensing company Cognitive Systems. “You see ...