Reference Terms
from Wikipedia, the free encyclopedia
Eyeglass prescription
An eyeglass prescription is a written order by an ophthalmologist or an optometrist to an optician for eyeglasses.
Note: The above text is excerpted from the Wikipedia article "Eyeglass prescription", which has been released under the GNU Free Documentation License.
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Science News
January 19, 2025
Jan. 17, 2025 — The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...
Jan. 17, 2025 — In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby stellar island to our Milky Way -- the magnificent ...
Jan. 17, 2025 — Astrophysicists have imaged a large number of exocomet belts around nearby stars, and the tiny pebbles within them. The crystal-clear images show light being emitted from these millimeter-sized ...
Jan. 17, 2025 — Human ancestors like Australopithecus -- which lived around 3.5 million years ago in southern Africa -- ate very little to no meat, according to new research. This conclusion comes from an analysis of nitrogen isotope isotopes in the fossilized ...
Latest Headlines
updated 12:56 pm ET
Jan. 19, 2025 — Ecologists have identified significant ecological risks associated with the release of hybrid groupers into Hong Kong's coastal waters, a practice ...
Jan. 17, 2025 — In life sciences, confocal fluorescence microscopy (CFM) is widely regarded for producing high-resolution cellular images. However, it requires fluorescent staining, which poses risks of ...
Jan. 17, 2025 — Nobody wants to share a day on the water with E. coli. The bacteria is a sure sign of fecal contamination, which is washed into waterways from farm fields or sewage systems by rain. The microbes are ...
Jan. 17, 2025 — New research emphasizes that studying the impacts of past tropical storms can help communities better prepare for future storms. A key part of the study is analyzing the types and quantities of ...
Jan. 17, 2025 — Salt pollution from road deicing salts threatens freshwater ecosystems and urban green infrastructure. New research on salt-tolerant plants like cattails highlights their potential role in mitigating ...
Jan. 17, 2025 — Atmospheric scientists show proposed 'geoengineering' effort to remove methane, a potent greenhouse gas, from the atmosphere could worse air quality while providing minimal climate ...
Jan. 17, 2025 — Cultural traits -- the information, beliefs, behaviors, customs, and practices that shape the character of a population -- are influenced by conformity, the tendency to align with others, or ...
Jan. 17, 2025 — Researchers have improved our understanding of how rotavirus, the most common cause of acute gastroenteritis in children, makes people sick. The study is among the first to show that the rotavirus ...
Jan. 17, 2025 — By editing the polymers of discarded plastics, chemists have found a way to generate new macromolecules with more valuable properties than those of the starting material. Upcycling may help remedy ...
Jan. 17, 2025 — A new study has found older-looking brains in adults with sickle cell disease, helping to explain the cognitive challenges experienced by such individuals. A brain image from a healthy individual ...