On a hot June evening at a ramshackle former gliderport 30 miles east of Dallas, John Carmack's rocket engine lit up with its blue flame spewing from the nozzle.

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"It's a very reassuring feeling to turn on the stove, see that blue flame and know you had a part in bringing a stable energy source to your community, " Glenn says.

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The Windows Phone 8X will come in a variety of colors including California Blue, Graphite Black, Flame Red and Limelight Yellow.

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The lamp's flame burned with a blue tinge when flammable gases were present and extinguished if oxygen in the air dropped to dangerous levels.

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Windows Phone 8 phones are Flame Red, Limelight Yellow and California Blue.

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