Category Physics

Smart Material Switches between Heating and Cooling in minutes

A demonstration of the “smart-window-like” portion of the passive heating and cooling technology. Electricity causes the device to either clear (left) to reveal a mirror that reflects sunlight and allows heat to escape, or to darken with tiny nanoparticles (right), which traps both sunlight and heat. Credit: Po-Chun Hsu, Duke University

Passive technology on roofs and facades could greatly reduce HVAC energy consumption. Engineers have developed smart material technology that, with the flip of a switch, can alternate between harvesting heat from sunlight and allowing an object to cool. The window-like device has no moving parts and could be a boon for HVAC savings, potentially cutting energy usage by nearly 20% in the United States alone.

As anyone who has ever parked a car in t...

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Unlocking the Technology to produce Unbreakable Screens

Unlocking the technology to produce unbreakable screens
Luminating composite glass. Credit: The University of Queensland

Cracked phone screens could become a thing of the past thanks to breakthrough research conducted at The University of Queensland.

The global team of researchers, led by UQ’s Dr Jingwei Hou, Professor Lianzhou Wang and Professor Vicki Chen, have unlocked the technology to produce next-generation composite glass for lighting LEDs and smartphone, television and computer screens.

The findings will enable the manufacture of glass screens that are not only unbreakable but also deliver crystal clear image quality.

Dr Hou said the discovery was a huge step forward in perovskite nanocrystal technology as previously, researchers were only able to produce this technology in the bone-dry atmosphere of a laboratory setting.

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Making the Strange Metal State in High Temperature Superconductors even Stranger

Researchers from Chalmers University of Technology, Sweden, have uncovered a striking new behavior of the ‘strange metal’ state of high temperature superconductors. The discovery represents an important piece of the puzzle for understanding these materials, and the findings have been published in the journal Science.

Superconductivity, where an electric current is transported without any losses, holds enormous potential for green technologies. For example, if it could be made to work at high enough temperatures, it could allow for lossless transport of renewable energy over great distances. Investigating this phenomenon is the aim of the research field of high temperature superconductivity...

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Making Martian Rocket Biofuel on Mars

Artist's conception of astronauts and human habitats on Mars. Courtesy: NASA
Artist’s conception of astronauts and human habitats on Mars. Courtesy: NASA

New study outlines biotechnology process to produce rocket fuel on red planet. Researchers at the Georgia Institute of Technology have developed a concept that would make Martian rocket fuel, on Mars, that could be used to launch future astronauts back to Earth.

The bioproduction process would use three resources native to the red planet: carbon dioxide, sunlight, and frozen water. It would also include transporting two microbes to Mars. The first would be cyanobacteria (algae), which would take CO2 from the Martian atmosphere and use sunlight to create sugars...

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