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Mother Nature Network

06

Dec

Cities come alive with light
Photographers from across the globe tell the stories behind the glittering, colorful landscapes found in “Illuminating the World,” a curated collection of stunning photos drawn from submissions in National Geographic’s photo community.

06

Nov

Is light made of waves or particles?Depending on which type of experiment is used, light, or any other type of particle will behave like a particle or like a wave.

Is light made of waves or particles?
Depending on which type of experiment is used, light, or any other type of particle will behave like a particle or like a wave.

05

Jan

Pentagon-backed ‘time cloak’ stops the clockThe laboratory device manipulates the flow of light in such a way that for the merest fraction of a second an event cannot be seen.

Pentagon-backed ‘time cloak’ stops the clock
The laboratory device manipulates the flow of light in such a way that for the merest fraction of a second an event cannot be seen.

06

Oct

Elusive quadruple rainbow photographed for first timeTertiary and quaternary rainbows are natural products of the combination of refraction, dispersion and reflection inside raindrops.

Elusive quadruple rainbow photographed for first time
Tertiary and quaternary rainbows are natural products of the combination of refraction, dispersion and reflection inside raindrops.

02

Oct

Lite-Brite meets the recycling binHave spare time, a few empty food packages, nimble fingers and a big imagination? Be inspired by these clever recycled table lamps by Anke Weiss.

Lite-Brite meets the recycling bin
Have spare time, a few empty food packages, nimble fingers and a big imagination? Be inspired by these clever recycled table lamps by Anke Weiss.

08

Aug

Beautifully simple design: The plastic bottle lightCut a hole in a developing world roof big enough for a plastic soda bottle to fit snugly into. Fill a bottle with water and a little bleach and set it halfway into the hole cap side up. Voila, you now have a daytime light bulb. The sunshine is diffused by the water in the bottle and kicks off the light equivalent to a 50 watt bulb that costs nothing to run. See how it works.

Beautifully simple design: The plastic bottle light
Cut a hole in a developing world roof big enough for a plastic soda bottle to fit snugly into. Fill a bottle with water and a little bleach and set it halfway into the hole cap side up. Voila, you now have a daytime light bulb. The sunshine is diffused by the water in the bottle and kicks off the light equivalent to a 50 watt bulb that costs nothing to run. See how it works.

14

May

CFL vs. incandescent: Battle of the bulbCompact fluorescent lamps are more efficient than traditional light bulbs, but they also contain toxic mercury. MNN sheds light on which is the brighter pick.

CFL vs. incandescent: Battle of the bulb
Compact fluorescent lamps are more efficient than traditional light bulbs, but they also contain toxic mercury. MNN sheds light on which is the brighter pick.

26

Apr

Light up cereal boxes!? Say it ain’t so!While the last thing the world needs is light up cereal boxes, the underlying technology could spell the end of cell phone charging cables.

Light up cereal boxes!? Say it ain’t so!
While the last thing the world needs is light up cereal boxes, the underlying technology could spell the end of cell phone charging cables.

15

Apr

Quantum leap: Bits of light teleported to another place

Our world is getting closer to ‘Star Trek’ every day, it seems. Scientists announced on April 14 they’ve been able to teleport special bits of light from one place to another, a la ‘Beam me up, Scotty.’

24

Mar

Lights out! 9 alternative light sources for Earth HourThe countdown to Earth Hour is on. For those scared of the dark, consider flameless or Earth Hour-appropriate real candles to provide illumination during the 60-minute blackout.

Lights out! 9 alternative light sources for Earth Hour
The countdown to Earth Hour is on. For those scared of the dark, consider flameless or Earth Hour-appropriate real candles to provide illumination during the 60-minute blackout.