Today, satellites regularly provide ultraviolet images of solar storms.COLOR AND THE AURORA A sampling of aurora colors from some of the photos I’ve taken. The atmospheric gas determines the color at altitude (mainly atomic oxygen and nitrogen), its electrical state, and the energy of the ...
The main reason you can end up with a faded photo is simple — light. Ink fades over time when exposed to light and it’s the primary cause of old photos fading. UV (ultraviolet) light is particularly bad for this, but any kind of extended light exposure can cause photos to fade The...
There are some necessary requirements for life to arise. Not only does a planet need the right mix of elements (like all the carbon) and conditions, but there also has to be a spark that gives rise to living creatures. Then, of course, those creatures have to somehow evolve into beings ...
But what if trout can see a wider range of light wavelengths than we can—what about ultraviolet (UV)? Recently, fly tiers have used materials treated with dyes to reflect UV light. Do they more accurately imitate the trout’s prey? Humans don’t have UV-sensitive cones in our eyes, th...
First, he began by shining ultraviolet light on the surface of a metal. When he did this, he was able to detect electrons being emitted from the surface. This was Einstein's explanation: If the energy in light comes in bundles, then one can think of light as containing tiny lumps, or...
Electrodes take electrical energy from the power supply and generate moving electrons. The moving electrons collide with mercury atoms in the tubes to make ultraviolet light. The white phosphor coating of the tubes converts the ultraviolet light into visible light (that we can see).What's inside...
Ultraviolet Slime Butter Slime Pin Pin Pin Grab the Ultimate Slime Recipe Bundle All the best homemade slime recipes in one place with plenty of fantastic extras! What’s Included: The Ultimate Slime Guide contains all the specialty recipes you or your kids want to make! You’ll find all ...
Fluorescence - This type of microscope uses high-energy, short-wavelength light (usually ultraviolet) to excite electrons within certain molecules inside a specimen, causing those electrons to shift to higher orbits. When they fall back to their original energy levels, they emit lower-energy, longer...
Learn about electrical fields and find out how electrical fields relate to ghosts. A phosphor is any material that, when exposed to radiation, emits visible light. The radiation might be ultraviolet light or a beam of electrons. Any fluorescent color is really a phosphor — fluorescent colors ...
ultraviolet (UV) light to observe how devices react. For a Kindle, we want to see if the materials crack, if the colors fade, or if the display degrades when exposed to sunlight for aprolonged periodof time. The photo below shows how the solar exposure test works using fabric for ...