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Pedal power: Bicycles waste little energy

Researchers found that larger sprocket sizes and higher chain tension can significantly increase bicycle drive train efficiency, while lubrication has a minimal impact. The study's results could have implications for other chain-driven devices, including conveyor belts and factory production lines.

When Is A Liquid Not A Liquid?

In a groundbreaking study, researchers directly observed molecules of liquid forming three solid-like layers near a solid surface. The findings suggest that liquids do not behave like bulk liquids in confined geometries and have significant implications for the development of lubricants and thin film coatings.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

New Material Shows Superior Lubricating Properties

Researchers at the Weizmann Institute of Science have developed a new material that outperforms existing lubricants in industrial conditions. The material, made of tungsten disulfide fullerene-like molecules, reduces friction between moving metal parts by less than half and wear by up to six times.

Discovery About Lubricants Could Lead To Less Machinery Wear

Scientists have discovered that randomness in lubricants is a major contributor to friction at the molecular level. This finding could lead to reduced wear and tear on machinery. By understanding how lubricants fracture and heal, researchers may develop new methods to control friction and minimize wear.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Cooking And Salad Oils Could Lubricate Cars, Boats, Machines

Researchers at Penn State have discovered that certain vegetable oil formulations can perform as well or better than commercial standards in tests for high-temperature resistance, slipperiness, and evaporation loss. This breakthrough has the potential to provide a more environmentally friendly alternative to traditional lubricants.