Light

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3,286 published items.

The nano cup was ahead of the Roman era
Archeology

The nano cup was ahead of the Roman era

The 1,600-year-old cup from ancient Rome is turquoise when light shines from the front and turns red when light shines from behind.

December 17, 2018
Old Indian collection of insects and mysteries
Archeology

Old Indian collection of insects and mysteries

The large collection of insects such as bees, termites, spiders, flies, ants dating back about 53 million years ago challenged the hypothetical theory of India's ancient…

December 17, 2018
Rotten fish used to study fossils
Archeology

Rotten fish used to study fossils

By observing the fish as they are decaying, scientists have discovered patterns that may shed light on some of the most important and ancient fossils.

December 17, 2018
How do Vikings go to sea in cloudy days?
Archeology

How do Vikings go to sea in cloudy days?

The Vikings navigate the sea with sundial clocks. But in the gloomy days, the sundial is also useless. Many researchers wonder how they overcome it? One theory is that t…

December 17, 2018
Yellow halo like honey covered Earth in ISS image
Space science

Yellow halo like honey covered Earth in ISS image

Optical phenomena with golden light like honey make the Earth look like a giant candy, urging astronauts on the International Space Station to stay in the moment on Octo…

December 17, 2018