Reference Terms
from Wikipedia, the free encyclopedia
Pearl
A pearl is a hard, rounded object produced by certain mollusks, primarily oysters.
Note: The above text is excerpted from the Wikipedia article "Pearl", which has been released under the GNU Free Documentation License.
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Science News
March 25, 2025
Mar. 25, 2025 — This a robot can walk, without electronics, and only with the addition of a cartridge of compressed gas, right off the 3D-printer. It can also be printed in one go, from one ...
Mar. 24, 2025 — Researchers have discovered that chimpanzees living in Gombe Stream National Park in Tanzania employ a degree of engineering when making their tools, deliberately choosing plants that provide ...
Mar. 20, 2025 — A new study has discovered that birds in the Galapagos Islands are changing their behavior due to traffic noise, with those frequently exposed to vehicles showing heightened levels of aggression. During trials involving traffic noise, Galapagos ...
Mar. 20, 2025 — The Dark Energy Spectroscopic Instrument used millions of galaxies and quasars to build the largest 3D map of our universe to date. Combining their data with other experiments shows signs that the impact of dark energy may be weakening over time -- ...
Latest Headlines
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Mar. 25, 2025 — Delayed and disorderly energy transitions will threaten economic and financial stability whilst also increasing the economic risks from climate change, according to a new study. Conversely, ...
Mar. 25, 2025 — Researchers have determined that six gas valves provide the best protection against plasma disruptions in SPARC, a next-generation, experimental ...
Mar. 25, 2025 — What goes through your mind when someone asks 'Did you see that?' A study shows that children and adults process ambiguous information like 'that' differently. While children focus more on the ...
Mar. 25, 2025 — Early animal studies show that a single vaccine could protect the recipient from different variants of the coronaviruses that cause COVID-19, the flu and the common cold. In addition to creating ...
Mar. 25, 2025 — Plastic is everywhere in our daily lives. And much of what we use, such as cutting boards, clothes and cleaning sponges, can expose us to tiny, micrometer-wide plastic particles called microplastics. ...
Mar. 25, 2025 — Deep below the Earth's surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the chemicals fossilized within ...
Mar. 25, 2025 — The condition of the grass on a golf course can drastically skew the chances of a winning putt regardless of a player's skill. Now, a coating that soaks up water molecules could slow the roll of a ...
Mar. 25, 2025 — Tiny fragments of plastic have become ubiquitous in our environment and our bodies. Higher exposure to these microplastics, which can be inadvertently consumed or inhaled, is associated with a ...
Mar. 25, 2025 — In addition to causing several types of cancer, human papillomavirus (HPV) appears to bring a significantly increased risk of heart disease and coronary artery disease, according to a new ...
Mar. 24, 2025 — Researchers have developed an innovative sensing system that restores the missing tactile feedback in minimally invasive surgery (MIS), enhancing ...