A gamma ray packs at least 10,000 times more energy than a visible light ray. Unlike the Incredible Hulk, gamma rays are not green — lying as they do beyond the visible spectrum, gamma rays have no color at all that we can describe.

Gamma rays allow us to enrich our view of the universe beyond what we see in visible light. Along with other non-visible forms of light, gamma rays enable us to observe known objects in a new way, and they reveal phenomena never before seen.

All electromagnetic radiation except visible light (a very narrow band) is invisible. Invisible radiation includes radio waves, infrared, UV, microwaves, and gamma radiation. In addition, alpha and beta radiation as well as “”cathode rays” – all of which are streams of particles – are invisible.

Visible light

Like X-ray detection, gamma-ray detection is done photon-by-photon. Gamma rays are detected by observing the effects they have on matter. A gamma ray can collide with an electron and bounce off it like a billiard ball (Compton scatter) or it can push an electron to a higher energy level (photoelectric ionization).

violet

violet light

Which type of fire is hotter, blue or purple? – Quora. As things heat up and combustion becomes more complete, flames turn from red to orange, yellow and blue. And purple color is combination of red & blue color it means that blue fire is more hotter than purple fire.

Candle flames on earth have several different temperatures within the flame due to the variations caused by convection flows. In the zero gravity of the space station the flame burns rounder, slower, hotter and more blue. Our traditional associations for color and temperature tell us that red is hot and blue is cold.

You can make fire burn with a pure white flame. White is an elusive fire color because the fuel that supports a flame burns with its own characteristic spectrum. But, with a little chemistry know-how, you can get white fire. Here’s how to do it, along with tips to make the fire last.

Yes. A combusting material has to keep above a certain temperature, or the fire will go out. This is why blowing on a candle puts it out. You’re not depriving it of fuel or oxygen, but the wind passing over it lowers the temperature enough so that it can’t burn anymore.

Some fires (flames) are hotter or colder than others. Acetylene burns at 3100*C in oxygen while ‘Cool’ flames, resulting from certain chemical reactions can exist down to 400*C. but a human would still experience that ‘cooler’ temperature as quite hot. So, from a human perspective, THERE ARE NO ‘COLD’ FIRES OR FLAMES.

The color of the flames is apart of temperature affected also by the type of fuel used (i.e. the material being burned) as some chemicals present in the material can taint flames by various colors. Blue-violet (purple) flames are one of the hottest visible parts of fire at more than 1400°C (2552°F).

While lava can be as hot as 2200 F, some flames can be much hotter, such as 3600 F or more, while a candle flame can be as low as 1800 F. Lava is hotter than a typical wood or coal-buring fire, but some flames, such as that of an acetylene torch, is hotter than lava.

Lava won’t kill you if it briefly touches you. You would get a nasty burn, but unless you fell in and couldn’t get out, you wouldn’t die. With prolonged contact, the amount of lava “coverage” and the length of time it was in contact with your skin would be important factors in how severe your injuries would be!