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Prime numbers are one of the most basic topics of study in the branch of mathematics called number theory.

Primes are numbers that can only be evenly divided by themselves and 1. For example, 7 is a prime number since I’m left with a remainder or a fractional component if I divide 7 by anything other than itself or 1. 6 is not a prime because I can divide 6 by 2 and get 3.

Could life on Earth have spawned more than once?

Circa 2014 o.o

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On a late summer afternoon it can seem like sunlight has turned to honey, but could liquid—or even solid—light be more than a piece of poetry? Princeton University electrical engineers say not only is it possible, they’ve already made it happen.

In Physical Review X, the researchers reveal that they have locked individual photons together so that they become like a solid object.

“It’s something that we have never seen before,” says Dr. Andrew Houck, an associate professor of electrical engineering and one of the researchers. “This is a new behavior for light.”

Scientists say the possible homeland of all humans alive today is an area south of the Zambezi River.

Coastal cities such as India’s Mumbai, China’s Shanghai and Thailand’s Bangkok could be submerged in three decades.

Forget everything you thought you knew about boiling and freezing, thanks to these MIT scientists.

There is no comprise with the patriarchy.

If you’d like to finish off the year with a clear conscience, we’ve found the ideal eco-friendly charter yacht for your upcoming holiday voyage. Known as E, the 60-foot electric catamaran will hit the waters this December and promises a sailing experience that’s both luxurious and low impact.

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Sail the Seven Seas guilt-free.