Sentences with phrase «actually emits light»

To figure out which frequency of ultrasound would be most efficient for water purification, the scientists looked at another process related to cavitation called sonoluminescence, in which water bubbles bombarded with sound actually emit light.

The black - light paintings reveal their true nature — and actually emit light — only when «excited» by ultraviolet bulbs.

Not exact matches

Standard lasers are actually not useful for secure communication because they emit what is called «classical» light.

In one feature, oceanographer Edie Widder finds that the dark abyss of the ocean actually crackles with enigmatic flashes from light - emitting creatures.

«There you have actual combustion occurring — so instead of just having light being reflected by all these particles, you actually have light being emitted by particles,» Ebert says.

Actually, as for almost all planetary nebulae, most of the visible light is even emitted in one spectral line only, in the green light at 5007 Angstrom (see our planetary nebula description)!

The biggest problem is that the bright light that your TV screen emits may actually keep you up.

The blue - free LED bulbs attracted 20 percent fewer bugs than the other bulbs, which is a major difference, even though they actually emitted a more intense light.

The bulbs themselves have seen some upgrades, most notably a boost in brightness from 600 to 800 lumens, and the light they emit actually seems considerably brighter than that.

Phone and tablet screens display light in a predominantly blue hue, and it's now thought that the blue light emitted by these screens actually tricks our brain into waking up, when it really needs to fall asleep.