Engineering
All-perovskite tandem solar cells, solar cells comprised of stacked wide-bandgap (WBG) and narrow-bandgap (NBG) perovskites, could be particularly promising energy solutions. Compared to other existing photovoltaic systems, ...
Robotics
It abseils from a height and swings around obstacles: Robot Avocado will one day maneuver through the canopy of the rainforest and collect data for researchers about this hard-to-reach habitat.
Jan 30, 2024
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46
Engineering
Cantilever fans move air through a flapping action, similar to hand-fans. Commercially available, they are combined with a piezoelectric bender, which provides their motive force. These fans are low noise, low power and have ...
Engineering
Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a trade-off dilemma: the more energy-efficient an electric aircraft is, the noisier it ...
Mar 15, 2023
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66
Engineering
A new MIT-developed heat treatment transforms the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments. The technique could make it possible to 3D print ...
Nov 14, 2022
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469
Energy & Green Tech
Researchers at Northern Illinois University and the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) in Golden, Colorado, are reporting a potential breakthrough that could help speed commercialization ...
Nov 30, 2021
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388
Energy & Green Tech
Wind turbine blades spinning through cold, wet conditions can collect ice nearly a foot thick on the yard-wide tips of their blades.
Mar 4, 2021
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1049
Engineering
Drone watchers are talking about a neat idea that has emerged from a prototype by researchers from Australia's University of Queensland, in Brisbane, Australia. They have worked on a rotor safety system for small UAVs (quadrotors).
Energy & Green Tech
(Tech Xplore)—A small team of researchers with Sorbonne Université and École Nationale Supérieure des Arts et Métiers-ParisTech has found that using flexible blades on a wind turbine can dramatically increase its efficiency. ...
Energy & Green Tech
(Tech Xplore)—Talk about making lemons into lemonade. Translate into talk about turning nature's cruel storms into alternative sources of green energy. We are looking at a turbine that loves typhoons. In typhoon winds, ...
A blade is that portion of a tool, weapon, or machine with a cutting edge and/or a pointed tip that is designed to cut and/or puncture, stab, slash, chop, slice, thrust, or scrape animate or inanimate surfaces or materials. A blade may be made from a flaking stone, such as flint, metal (usually steel), ceramic, or other material.
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