Pyroclastic Flow followed by series of Tornados, Sinabung Volcano

GEOGRAPHY EDUCATION

The pyroclastic flow deposits red-hot material on the slope of the volcano. After a few minutes, air heated by the deposit establishes a convective regime and due to the speed of the rising air a series of small tornados are formed.
During daylight it is difficult to imaging how hot the deposit is. Click here to see a pyroclastic flow deposit glowing at night from this same location.

Seth Dixon‘s insight:

Mount Sinabung recently erupted, killing at least 15 people and destroying tons on property on the island of Sumatra in Indonesia.  This footage is both awe-inspiring and terrifying.    

Tags: disastersIndonesia, physical, SouthEastAsia.

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4 Things Microsoft Still Does Well

Tech

With a struggling product line, shrinking PC sales, and a comical CEO search that seemed to lurch in three directions a day, Microsoft has become the punchline of every tech industry joke. Oh, how the geeky have fallen. As Steve Ballmer paddles away in a lifeboat made of $100 bills, newly-minted CEO Satya Nadella must right the company’s sinking ship and fix all the broken Windows. It’s easy (and popular) to predict further disaster for the once-proud tech titan. But quietly, Microsoft is doing several things well—better than we give it credit for.

Here are four things Microsoft still does well, and how it can capitalize going forward.

1. Mobile OS Design

microsoft_os_design
Nokia

The world hasn’t been fair to Windows Phone, a mobile OS with a design that’s fresh, tasteful, and functional. We forget just how innovative the metro-style interface was—and still is—which was flat before iOS and…

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