How to Build the Perfect Sandcastle--According to Science

A sedimentologist weighs in on beach selection, tools and the perfect sand-to-water ratio

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Jack Ma: Artificial intelligence could set off WWIII, but 'humans will win'

Artificial intelligence could set off a third world war, but humans will win the battle, according to Alibaba founder Jack Ma. "The first technology revolution caused World War I," Ma told CNBC in an interview that aired on Tuesday. "The second technology revolution caused World War II. This is the third technology revolution." Workers and employers are increasingly defined by data unless governments show more willingness to make "hard choices."

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Long before iPhones, this 19th-century gadget made everyone a mobile addict

Kaleidoscopes had kids walking into walls.

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Antibacterial soaps may do more harm than good, scientists warn

Anti-bacterial soaps and gels are useless and may cause harm, 200 scientists and medics have warned.

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Musk plans city on Mars

A city on Mars with a million inhabitants could be achievable within 50 years, South African space entrepreneur Elon Musk has forecast, as he laid out plans to turn mankind into a multi-planetary species. The SpaceX founder warned that humans would need to venture away from Earth to avoid a “Doomsday event” and our “eventual extinction”.

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America’s hungriest wind and solar power users: big companies

Major U.S. corporations such as Wal-Mart Stores Inc (WMT.N) and General Motors Co (GM.N) have become some of America’s biggest buyers of renewable energy, driving growth in an industry seen as key to helping the United States cut carbon emissions.

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The Importance of Measuring Resting Heart Rate

Resting Heart Rate can be a strong indicator of overall health and fitness—here are the essentials on why you measure it and how to lower it.

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