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Smart Meters Save $$$
Smart meters are small
computers that provide
real-time information on how
much electricity is being
used by each customer and
when, and can relay
information back to the head
... > full story
Turning Trash Into Power
A new kind of waste digester
uses two different strains
of bacteria in different
tanks. This would normally
take place in the same
environment, but
microbiologists have now
... > full story
Saving Electricity And Saving Money
A photosensor paired with a
dimming ballast controls
fluorescent lighting and
adjusts lights all over the
user's home. A
microcontroller
automatically calibrates
... > full story
Bringing Sunlight Inside
Photovoltaic panels have a
new design: concentric
circles that focus the sun's
rays on miniaturized
modules. Having the panels
automatically sense sunlight
and turn towards it also
... > full story
Browse Science Videos
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Energy and the Environment
Wind Energy
Renewable Energy
Environmental Science
Electricity
Environmental Issues
Environmental Engineers Detect Turbines' Turbulence Effects
Wind farms may have an impact on local weather patterns. As environmental engineers have discovered, wind farm propellers create a lot of turbulence in their wake, mixing air up and down with effects ... > more -
Engineer Designs More Efficient, Quieter Bus
An engineer has designed an electric bus that runs on battery power. Putting motors in each wheel makes a transmission and driveshaft unnecessary, and allows the bus to ride closer to the ground for ... > more -
Electrical Engineers Monitor Environment with Robotic Sensors
Fleets of robotic sensors, networking through thin cables, can track environmental changes such as biogeochemical cycles or loss of biodiversity, helping to manage wild lands. The technology is the ... > more -
Electrical Engineering Student Designs Early-Warning System for Harmful Gases
Respirators save lives for the first responders who wear them, but their cartridges need to be changed often. Without knowing it, users could be inhaling deadly gases. Electrical engineering student ... > more -
Chemists Create Self-assembling Conductive Rubber
Polymer chemists have created a flexible, indestructible material, called metal rubber, that can be heated, frozen, washed or doused with jet fuel, and still retain its electricity-conducting ... > more -
Automotive Engineers Team Up to Improve Energy-Saving Technology
Mechanical and electrical engineers at DaimlerChrysler, General Motors and BMW have jointly developed a hybrid-vehicle technology that shuts the internal combustion engine off when the vehicle stops. ... > more -
Materials Scientists Develop Light-up Tents
Material research scientists have made electroluminescent technology elastic and supple enough to be knitted and incorporated into canvas tent panels. An electric field is produced across the ... > more -
Vascular Surgeons Lower Blood Pressure with Implanted Device
A new cell phone-sized implant can keep blood pressure in check from within the chest, just like a pacemaker controls heartbeats. When the device detects a rise in pressure, it sends electrical ... > more -
Young Inventors' Firefighting Robots Are More than Just Fun Toys
At an international high-school contest based in Connecticut, students compete with their home-made robots. The goal for the robots is to navigate a maze, find a fire, and put it out in the shortest ... > more -
Mechanical and Aerospace Engineers Show Human Locomotion Optimizes Energy Use
Computer models of human locomotion are helping engineers understand why walk and run instead of hopping and skipping. The models are revealing that walking and running are the most energy-saving ... > more
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