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I floated in zero-g with former astronaut Scott Kelly

August 4, 2017 - 12:59 -- Admin

I did not throw up. When I tell people that I've ridden in a zero-g plane, invariably they ask, propriety be damned, if I threw up. So, it's best to address that aspect of zero-g straight away. Though I dutifully stick the company issued barf bag in my flight suit's pocket—just in case—my stomach's contents remain my stomach's contents through the many 30-to-40 second cycles of less than Earth's gravity. Five other fliers—all men—are significantly less fortunate.

How a snowflake get its shape

August 4, 2017 - 12:59 -- Admin

Snow can be soft and fluffy or stinging and icy; perfect for skiing or prone to melt. The difference lies in the shape of the flakes. They don't all look like the kind you see in emoji. Researchers have classified as many as 108 types, but according to Kenneth Libbrecht, a physicist at the California Institute of Technology, you can pare them down to four broad categories: plates, columns, needles, and dendrites.

Come see China's new hexacopters and self-detonating drones

August 1, 2017 - 10:02 -- Admin

As part of its celebration of the People's Liberation Army, the Military Museum of the Chinese People's Revolution in Beijing is showing off a range of exciting exhibitions, offering a peek into the PLA's new self-propelled artillery, cruise missiles, ballistic missile launchers, and—perhaps most notably—tactical unmanned aerial systems.

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