Wearable devices and biosensors are prone to heating up, especially under sunlight. However, conventional radiative coolers contain metallic materials, which limits wireless communications. Now scientists from Korea and the USA have developed a new type of radiative cooler using perforated polymers that keep the gadgets cool and fully functional under heat, paving the way for thermally protected wearable devices for health monitoring.
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IMAGE: A diagram of a nanowire cross-section shows the interaction between atoms in the nanowire core. Yellow atoms: germanium; red atoms: chromium; purple atoms around the outside of the yellow-red connections:. view more
Credit: Ranjit Pati/Michigan Tech
The electron is one of the fundamental particles in nature we read about in school. Its behavior holds clues to new ways to store digital data.
In a study published in
Nano Letters, physicists from Michigan Technological University explore alternative materials to improve capacity and shrink the size of digital data storage technologies. Ranjit Pati, professor of physics at Michigan Tech, led the study and explains the physics behind his team s new nanowire design.
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Credit: Raj Kumar Manna
PITTSBURGH (March 16, 2021) . During the swarming of birds or fish, each entity coordinates its location relative to the others, so that the swarm moves as one larger, coherent unit. Fireflies on the other hand coordinate their temporal behavior: within a group, they eventually all flash on and off at the same time and thus act as synchronized oscillators.
Few entities, however, coordinate both their spatial movements and inherent time clocks; the limited examples are termed swarmalators 1, which simultaneously swarm in space and oscillate in time. Japanese tree frogs are exemplar swarmalators: each frog changes both its location and rate of croaking relative to all the other frogs in a group.
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Four female and six male researchers are to receive the Heinz Maier-Leibnitz Prize this year, the top award for early career investigators in Germany. This was the result of a decision made by a selection committee appointed by the DFG and the Federal Ministry of Education and Research (BMBF). The prizes are each worth €20,000 and will be presented at an award ceremony on 4 May that is to be held virtually due to the coronavirus pandemic.
The Heinz Maier-Leibnitz Prizes 2021 go to:
Dr. Julia Borst, Romance Literary Studies, University of Bremen
Dr.-Ing. Silvia Budday, Biomechanics, University Erlangen-Nuremberg
Dr. Josep Cornellà, Organic Molecular Chemistry, Max-Planck-Institut für Kohlenforschung, Mülheim/Ruhr
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IMAGE: Composite image of galaxy cluster MACSJ0717.5+3745, with VLA radio image superimposed on visible-light image from Hubble Space Telescope. Pullout is detail of distant galaxy VLAHFF-J071736.66+374506.4 likely the faintest radio-emitting. view more
Credit: Heywood et al.; Sophia Dagnello, NRAO/AUI/NSF; STScI.
Radio telescopes are the world s most sensitive radio receivers, capable of finding extremely faint wisps of radio emission coming from objects at the farthest reaches of the universe. Recently, a team of astronomers used the National Science Foundation s Karl G. Jansky Very Large Array (VLA) to take advantage of a helping hand from nature to detect a distant galaxy that likely is the faintest radio-emitting object yet found.