Reference Terms
from Wikipedia, the free encyclopedia
Ellipse
In mathematics, an ellipse is a plane algebraic curve where the sum of the distances from any point on the curve to two fixed points is constant.
Note: The above text is excerpted from the Wikipedia article "Ellipse", which has been released under the GNU Free Documentation License.
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Science News
April 26, 2025
Apr. 25, 2025 — Astronomers have discovered that super-Earth exoplanets are more common across the universe than previously thought. While it can be relatively easy to locate worlds that orbit close to their star, planets with wider paths can be difficult to ...
Apr. 25, 2025 — It's no secret that our waistlines often expand in middle-age, but the problem isn't strictly cosmetic. Belly fat accelerates aging and slows down metabolism, increasing our risk for developing diabetes, heart problems and other chronic diseases. ...
Apr. 24, 2025 — Female bonobos team up to suppress male aggression against them -- the first evidence of animals deploying this strategy. In 85% of observed coalitions, females collectively targeted males, forcing ...
Apr. 24, 2025 — A 113-million-year-old hell ant that once lived in northeastern Brazil is now the oldest ant specimen known to science, finds a new report. The hell ant, which was preserved in limestone, is a member of Haidomyrmecinae -- an extinct subfamily that ...
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Apr. 25, 2025 — The less intensively you manage the soil, the better the soil can function. Such as not plowing as often or using more grass-clover mixtures as cover crops. Surprisingly, it applies to both ...
Apr. 24, 2025 — Pioneering research has repurposed a gene editing tool to help shed light on the true biodiversity present in natural ...
Apr. 23, 2025 — When a seismologist visited the site of the 2019 Ridgecrest earthquakes two days after the event, he noticed something strange. Pebble- to boulder-sized rocks clearly had been moved by the ...
Apr. 23, 2025 — Researchers have discovered that expansion of mutant blood cells, a phenomenon linked to aging, can be found in cancerous tumors, and this is ...
Apr. 23, 2025 — Study finds a 18.5% reduction in sick leave following LEZ implementation in Greater London compared to areas in England without low emission ...
Apr. 23, 2025 — Scientists have discovered a surprising new connection between gut health and blood cancer risk one that could transform how we think about aging, ...
Apr. 23, 2025 — Addressing the challenges of fragrance design, researchers have developed an AI model that can automate the creation of new fragrances based on user-defined scent descriptors. The model uses mass ...
Apr. 22, 2025 — Some species that breed over large geographic areas can still be adapted to a fairly narrow range of climates, making them more vulnerable to climate change than previously thought. Also, species ...
Apr. 22, 2025 — In face-to-face conversations, speakers use hand movements to signal meaning. But do listeners actually use these gestures to predict what someone might say next? In a study using virtual avatars, ...
Apr. 22, 2025 — Researchers found that a brief episode of anxiety may have a bigger influence on a person's ability to learn what is safe and what is not. A new study used a virtual reality game that involved ...