Reference Terms
from Wikipedia, the free encyclopedia
Fuel cell
A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i.e. it produces electricity from an external fuel supply of hydrogen and oxygen as opposed to the limited internal energy storage capacity of a battery.
Note: The above text is excerpted from the Wikipedia article "Fuel cell", which has been released under the GNU Free Documentation License.
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Matter & Energy News
March 24, 2025
Mar. 19, 2025 — A leaping robot could have application in search and rescue, construction, even forest monitoring. But how do you design a robot to stick a landing on a branch or pipe? Biologists worked with robot designers to discover how squirrels do it, and used ...
Mar. 12, 2025 — Scientists have developed an approach that combines rehabilitation robotics with spinal cord stimulation to restore movement in people with spinal cord injuries. The technology enhances rehabilitation and enables activities like cycling and walking ...
Mar. 6, 2025 — Researchers have enabled a man who is paralyzed to control a robotic arm through a device that relays signals from his brain to a computer. He was able to grasp, move and drop objects just by imagining himself performing the ...
Mar. 5, 2025 — Engineers have developed a pioneering prosthetic hand that can grip plush toys, water bottles, and other everyday objects like a human, carefully conforming and adjusting its grasp to avoid damaging ...
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