Reference Terms
from Wikipedia, the free encyclopedia
Trebuchet
A trebuchet, also sometimes called a trebucket is a medieval siege engine, a weapon employed either to batter masonry or to throw projectiles over walls.
Note: The above text is excerpted from the Wikipedia article "Trebuchet", which has been released under the GNU Free Documentation License.
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Matter & Energy News
April 14, 2025
Apr. 11, 2025 — A team of researchers reported the first direct observation of a surprising quantum phenomenon predicted over half a century ago known as a superradiant phase transition, which occurs when two groups of quantum particles begin to fluctuate in a ...
Apr. 9, 2025 — A hopping, insect-sized robot can jump over gaps or obstacles, traverse rough, slippery, or slanted surfaces, and perform aerial acrobatic maneuvers, while using a fraction of the energy required for flying ...
Apr. 7, 2025 — A web platform uses a chatbot to enable any chemist -- including undergraduate chemistry majors -- to configure and execute complex quantum mechanical simulations through ...
Apr. 2, 2025 — Smaller than a grain of rice, new pacemaker is particularly suited to the small, fragile hearts of newborn babies with congenital heart defects. Tiny pacemaker is paired with a small, soft, flexible wearable patch that sits on the patient's chest. ...
Latest Headlines
updated 12:56 pm ET
Apr. 14, 2025 — Identifying a key protein's role could improve the common mental health medications and point to new treatments for inflammation-related diseases, a ...
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Apr. 14, 2025 — Neural networks are one typical structure on which artificial intelligence can be based. The term neural describes their learning ability, which to some extent mimics the functioning of neurons in ...
Apr. 11, 2025 — The UK government needs to go beyond offering subsidies for low-carbon technologies (LCTs) like electric cars and solar panels for energy and ...
Apr. 11, 2025 — Engineers have made bacteria to produce hyperspectral signals that can be detected as far as 90 meters away. Their work could lead to the development of bacterial sensors for agricultural and other ...
Apr. 10, 2025 — Using artificial intelligence shortens the time to identify complex quantum phases in materials from months to minutes, finds a study. The breakthrough could significantly speed up research into ...
Apr. 14, 2025 — Microplastics and the much smaller nanoplastics enter the human body in various ways, for example through food or the air we breathe. A large proportion is excreted, but a certain amount remains in ...
Apr. 14, 2025 — Researchers have developed a new forecasting model that helps companies more accurately estimate how many customers are interested in a product -- even when key data is missing. The study introduces ...
Apr. 14, 2025 — A team discovers a new family of enzymes capable of inducing targeted cuts in single-stranded DNA A few years ago, the advent of technology known as CRISPR was a major breakthrough in the scientific ...
Apr. 14, 2025 — Engineers discovered a way to move heat ultrafast using crystal waves, offering a breakthrough in cooling advanced ...