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Thermal

The new coating protects airplane engine components from heat damage, while lasting longer...

The higher the temperature at which an aircraft engine is able to run, the more efficiently it uses fuel. In order to run at those high temperatures, the metal components of airplane engines are presently treated with heat-shielding coatings. Scientists at Sweden's University West, however, are developing a new such coating that is said to be far more effective than anything presently used – it could extend the service life of engines by 300 percent.  Read More

Lunar ranging laser pulse scattering off high terrestrial cloud during eclipse (Photo: NAS...

The full moon has long been associated with any number of superstitions. While links with lunacy, violence, fertility, disasters, and the stock market have been thoroughly debunked, the possibility of a causative role in some arenas still remains a possibility. A lunar ranging study carried out using reflectors has long contended with the "Full-Moon Curse," a near-total fading of reflected signals during the full Moon. This Curse is real, and has now been explained.  Read More

Mimicking polar bear fur, which is able to insulate the animal's body to temperatures of 9...

Put a polar bear and a biophotonics expert together in a chilly room and what do you get? Potentially, better insulation. When looking to uncover the secrets of the impressive insulation properties of polar bear fur, researchers at the University of Namur in Belgium and the University of Hassan I in Morocco found that radiation plays a larger role than conduction in the insulation of polar animals, such as penguins and polar bears, than previously believed.  Read More

The Wristify thermoelectric bracelet being put to the test at MIT's MADMEC (Photo: Frankli...

Most bracelets aren't likely to alter your temperature too much either way, but the Wristify isn't most bracelets. Developed by four MIT engineering students, the Wristify works on the principle that heating or cooling the skin on one part of the body can make the entire body feel warmer or colder. By creating a personal heating and cooling device, the Wristify team ultimately hopes to cut the amount of energy currently used to heat or cool entire buildings.  Read More

Does water hold the key to more efficient windows? (Photo: Nathan Larkin)

Researchers at the University of Toronto say they can improve the energy of efficiency buildings by fitting window panes with tiny channels of water. The scientists says that these channels, inspired by vascular systems in nature such as the network of blood vessels in the human body, can provide 7º to 9º C of cooling in the summer, and reduce heat loss during winter.  Read More

Artist's conception of a commercial hydrogen production plant that uses sunlight to split ...

A new technique developed by a University of Colorado Boulder team converts sunshine and water directly into usable fuel. The technique involves concentrating sunlight in a solar tower to achieve temperatures high enough to drive chemical reactions that split water into its constituent oxygen and hydrogen molecules. In this way, the team says it should be able to cheaply produce massive amounts of hydrogen fuel.  Read More

Developed by British engineer James Bentham, the Solar Kettle can boil water simply by usi...

Developed by British engineer James Bentham, the Solar Kettle can boil water simply by using sunlight. The portable thermos-like product uses a special thermal technology to boil water without the need for any power input, thus making it ideal for camping, picnics and outdoor activities.  Read More

Cogenra's cogeneration system produces heat and electricity, increasing efficiency to up t...

The Southern California Gas Company, the largest natural gas distribution company in the U.S., has become the first utility in that country to test Cogenra’s solar cogeneration solution for cooling purposes. The system will provide air conditioning for SoCalGas’s Energy Resource Center (ERC). Until now, the technology has been mainly applied to solar hot water, space heating and electricity.  Read More

Artist's impression of an installed Lotus solar collector (Image: Monarch)

This rather novel solar collector draws inspiration from the lotus flower to provide small-scale solar energy - both electric and thermal - to domestic and small business users. The aptly named Monarch Lotus' (rebranded from the Solar Umbrella) 18 petals unfold to to form a 4-meter (13-foot) diameter flower that will, if development goes to plan, produce 3 kW of photovoltaic electrical power and 3 kW of solar thermal power per 100-kg (220-pound) unit in ideal conditions.  Read More

Scientists have created a new type of thermal management system, that utilizes jumping dro...

When you have wet skin, you no doubt notice a cooling sensation as it dries. This is because the water droplets are carrying heat away from your skin with them, as they evaporate. Phase-change thermal diodes work the same way – through an evaporation and condensation process, they use liquid to transport heat away from things such as microchips. In most of these diodes, liquid placed on a hot surface evaporates, the vapor then rising onto a cooler surface, where it condenses back into liquid. In a closed-loop cycle, gravity subsequently carries that condensate back down to the hot surface, so it can once again be evaporated. Now, scientists from North Carolina's Duke University have discovered a method of getting condensed water droplets to jump back to the hot surface – and they can do so in any direction, including straight up.  Read More

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