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This cooling effect allowed the

facility to grow three crops per year, even in the scorching summer

At the other end of the greenhouse is a network of pipes with cold seawater running through them

Some of the moisture in the air condenses on the pipes and is collected, providing a source of fresh water

One of the surprising side effects of such a seawater greenhouse, seen during early experiments, is that cool moist air leaking out of it encourages other plants to grow spontaneously outside

Qatar plant took advantage of that effect to grow crops around the greenhouse, including barley and salad rocket (arugula), as well as useful desert plants

The pilot plant accentuated this exterior cooling with more “evaporative hedges” that reduced air temperatures by up to 10°C.

The third key element of the SFP facility is a concentrated solar power plant

This uses mirrors in the shape of a parabolic trough to heat a fluid flowing through a pipe at its focus. The heated fluid then boils water, and the steam drives a turbine to generate power

the plant has electricity to run its control systems and pumps and can use any excess to desalinate water for irrigating the plants

The fact that this small greenhouse produced such good yields,

suggests that a commercial plant—with possibly four crops a year—could do even better

Data gathered during low-altitude flights in and around the Los Angeles basin in May 2010 suggest that the region's 9.9 million autos generate about 62 metric tons of ammonia each day

ammonia emissions from dairy farms in the eastern portion of the basin—home to about 298,000 cattle—range between 33 and 176 metric tons per day

Ammonia emissions from the dairy farms are concentrated, boosting atmospheric levels of the gas to more than 100 times background levels, so efforts to curb the farms' emissions (perhaps by feeding the animals different diets) might reduce smog more than those targeting cars.

Armstrong was born Aug. 5, 1930, on a farm in Ohio

He was licensed to fly at 16, before he got his driver's license

enrolled in Purdue University to study aeronautical engineering but was called to duty with the U.S. Navy in 1949 and flew 78 combat missions in Korea

He became a test pilot with what evolved into the National Aeronautics and Space Administration, flying more than 200 kinds of aircraft from gliders to jets.

accepted into NASA's second astronaut class in 1962

backup commander for the historic Apollo 8 mission at Christmastime in 1968

In Wapakoneta, media and souvenir frenzy was swirling around the home of Armstrong's parents

People were pulling grass out of their front yard."

Armstrong, Aldrin and Collins were given ticker tape parades in New York, Chicago and Los Angeles and later made a 22-nation world tour. A homecoming in Wapakoneta drew 50,000 people to the city of 9,000.

In 1970, Armstrong was appointed deputy associate administrator for aeronautics at NASA but left the following year to teach aerospace engineering at the University of Cincinnati.

remained there until 1979 and during that time bought a farm, where he raised cattle and corn. He stayed out of public view, accepting few requests for interviews or speeches.

"I can honestly say—and it's a big surprise to me—that I have never had a dream about being on the moon," he said

His family's statement

"Honor his example of service, accomplishment and modesty, and the next time you walk outside on a clear night and see the moon smiling down at you, think of Neil Armstrong and give him a wink.