ScienceIQ.com

High Altitude

Have you ever read the directions on a box of cake mix? There are special instructions for high-altitude baking. Has anyone who visited the Rocky Mountains told you how hard it was to breathe there? Have you ever wondered why pilots who fly in high-flying planes wear breathing masks? In higher altitudes, reduced air pressure makes it harder for ...

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HighAltitude
Astronomy

What is Dark Energy?

Because he originally thought the Universe was static, Einstein conjectured that even the emptiest possible space, devoid of matter and radiation, might still have a dark energy, which he called a ... Continue reading

WhatisDarkEnergy
Biology

Wetlands Top Ecosystem

Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season. ... Continue reading

Wetlands
Biology

Leading Killer Wears Two Faces

Diabetes is the 6th leading cause of death in the United States. About 17 million people (6.2% of the population) have diabetes. But the disease usually wears two faces. Type 1 diabetes affects young ... Continue reading

Diabetes
Engineering

Alloys

Water is a clear colorless liquid. So is methanol. If one were to take a quantity of methanol and pour it into some water, the result is also a clear colorless liquid. But this one is something new; a ... Continue reading

Alloys

Space Lasers Keep Earth's Air Clean

SpaceLasersKeepEarthsAirCleanSpace laser technology is coming to our smokestacks and automobiles. Leave it to NASA to take its inventions to another level, helping to keep our air clean and breathable. A recent NASA invention, originally designed to help lasers control carbon monoxide in the cold environment of space, is now being tested for use here on Earth. The technology is called Low-Temperature Oxidation Catalysts (LTOC). Scientists at NASA's Langley Research Center in Virginia are gearing a variation of this technology towards reducing the formaldehyde and carbon monoxide in smokestack emissions by a whopping 85 to 95 percent. Engineers are also looking to use LTOC technology to reduce pollution caused by auto emissions. Even though most cars today have catalytic converters, they're only effective when the engine exhaust reaches a high temperature. LTOC technology could reduce the auto exhaust pollutions made up of carbon monoxide, hydrocarbons and nitrogen oxides by about 30 percent.

Why the push to reduce these gases from our air? Because carbon monoxide is a poisonous gas, hydrocarbons damage the Earth's ozone layer and contribute significantly to the greenhouse effect, and nitrogen oxide contributes to both smog and acid rain. Clean air is one of the only elements we can't live without. The trick to why this new discovery will work on autos is that the air-cleaning process would begin the moment the vehicle is started. Right now, millions of cars start up in colder temperatures and release toxic gasses before the engine exhaust reaches a temperature high enough for the catalytic converter to be effective. When you think about the billions of times cars are started each day, the amount of toxic gasses released into the atmosphere is staggering. Since the LTOC technology was designed to work in the sub-freezing temperature of space, the cleansing would start immediately, even in the cold catalytic converter.

When this new space-age technology is applied to everyday uses, everyone on the planet will benefit. In the meantime, NASA is monitoring Earth's atmosphere with several orbiting satellites, soon to be joined by Aura, one of NASA's most ambitious atmospheric monitoring systems ever launched. NASA is now partnering with commercial industries to help bring smokestack and automotive LTOC systems to the marketplace. As America's Vision for Space Exploration moves forward and we journey back to the Moon, then Mars and beyond, we'll need a healthy planet to return to. NASA is helping to make that happen.