Features

NASA Energy Concept Could Harness the Power of Ocean Waves

NASA Jet Propulsion Laboratory (JPL) researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope that clean, renewable energy produced from the motion of the ocean and rivers could potentially meet an important part of the world’s demand for electricity.

Posted in: Features, Articles, Hydroelectric Power, Renewable Energy

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Designing the First Fully Sustainable Block in the U.S.

In the near future, a crumbling parking lot in downtown Dallas, Texas will be the location of the first fully sustainable, urban square block in the United States. Re:Vision Dallas is the sixth competition in a series from the San Francisco, California-based organization, Urban Re:Vision – a group of people focused on changing the urban landscape by re-imagining the components which make up a city block.

Posted in: Building Technologies, Features, Articles, Geothermal Power, Renewable Energy, Solar Power, Wind Power, Remediation Technologies

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NASA Study Shows How Oil Production Impacts Climate

When and how global oil production will peak has been debated, making it difficult to anticipate emissions from the burning of fuel and to precisely estimate its impact on the climate. To better understand how emissions might change in the future, Pushker Kharecha and James Hansen of NASA’s Goddard In stitute for Space Studies in New York considered a wide range of fossil fuel consumption scenarios.

Posted in: Climate, Features, Articles

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Lithium-Ion Batteries Fuel the Future of Automotive Design

In 1924, General Motors president Alfred P. Sloan Jr. devised annual model-year design changes in order to maintain unit sales. Body shapes faced cosmetic changes every year, whether or not the underlying automobile had changed. This breakthrough strategy had widespread effects on the automobile business, automotive design, and eventually the United States economy. In recent years, amongst a worsening economy and a struggling auto industry, the underlying automobile has changed rapidly, with emphases on efficiency and environmental friendliness.

Posted in: Features, Articles, Batteries

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"Create the Future" Sustainable Technologies Category Winner

The 2008 NASA Tech Briefs "Create the Future Design Contest," presented by SolidWorks, recognized innovation in product design in six categories: Consumer Products, Machinery & Equipment, Medical, Safety & Security, Sustainable Technologies, and Transportation. Here is the winner of the Sustainable Technologies category, along with the two honorable mentions.

Posted in: Features, Articles, Energy Efficiency, Renewable Energy, Wind Power

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NASA Geostationary Coastal and Air Pollution Monitoring

The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission has been recommended for launch in the 2013-2016 time frame by the National Research Council. The mission’s purpose is to gather science that identifies human versus natural sources of aerosols and ozone precursors, tracks air pollution transport, and studies the dynamics of coastal ecosystems, river plumes, and tidal fronts.

Posted in: Pollution, Features, Articles, Environmental Monitoring

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Protecting Data Signals Through Isolation

Many of us believe that if we don’t have ground loops we don’t need to isolate analog I/O signals. Yet there are five very real – and very different – reasons to isolate every one of your analog signals! If you’ve had problems on past applications, chances are you experienced one of the following: Signal crosstalk Common-mode voltage DC common-mode rejection AC common-mode rejection Over-range and input protection issues. Isolating power sources and sensor signals is the most effective way to address these problems; understanding how measurement inputs become corrupted in the first place will illustrate this.

Posted in: Articles

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