Sep 26, 2022 (Nanowerk News) Our excessive consumption of fossil fuels is responsible for some of the major societal challenges we are facing, from climate change to pollution. Hydrogen is considered a green alternative to fossil fuels, and alkaline water electrolysis is proving an attractive technology for large-scale commercialisation of...
Astronomers explain Mars’ watery reflections
Sep 26, 2022 (Nanowerk News) Cornell astronomers believe bright reflections beneath the surface of Mars’ South Pole are not necessarily evidence of liquid water, but instead geological layers. The researchers detail their alternative explanation in Nature Astronomy ("Explaining Bright Radar Reflections Below The South Pole of Mars Without Liquid Water")....
Astronomers map distances to 56,000 galaxies, largest-ever catalog
Sep 26, 2022 (Nanowerk News) How old is our universe, and what is its size? A team of researchers led by University of Hawaiʻi at Mānoa astronomers Brent Tully and Ehsan Kourkchi from the Institute for Astronomy have assembled the largest-ever compilation of high-precision galaxy distances, called Cosmicflows-4. Using eight...
Novel cellulose-carbon nanocomposite films boost heat dissipation in thin electronics
Sep 26, 2022 (Nanowerk News) Heat dissipation is essential for maintaining the performance of electronic devices. However, efficient heat dissipation is a major concern for thin-film electronics since conventional heat sinks are bulky. Researchers from Japan found a solution to this problem in sea squirts or ascidians. They prepared flexible...
Optical encryption method based on single pixel imaging and metasurface holography
Sep 26, 2022 (Nanowerk News) Metasurfaces, composed of nanoresonator arrays with tailored structure and subwavelength feature size, show the potential of manipulating various degrees of freedom for manipulating light, which opens a new door to the field of optical encryption. In addition, metasurface holography can encode multiple images on a...