Reference Terms
from Wikipedia, the free encyclopedia
Gravitation
Gravity is a force of attraction that acts between bodies that have mass.
Note: The above text is excerpted from the Wikipedia article "Gravitation", which has been released under the GNU Free Documentation License.
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Matter & Energy News
November 20, 2024
Nov. 12, 2024 — Global carbon emissions from fossil fuels have reached a record high in 2024, according to new ...
Nov. 6, 2024 — Thin, flexible device could help people with visual impairments 'feel' surroundings. Device comprises a hexagonal array of 19 actuators encapsulated in soft silicone. Device only uses energy when actuators change position, operating for longer ...
Oct. 23, 2024 — In the face of rising CO2 levels, scientists are searching for sustainable ways of pulling carbon dioxide out of the air, so-called direct air capture. A new type of porous material, a covalent organic framework (COF) with attached amines, stands ...
Oct. 17, 2024 — Researchers have developed a novel training protocol for brain-computer interfaces in a study with rhesus monkeys. The method enables precise control of prosthetic hands using signals from the brain alone. Researchers were able to show that the ...
Latest Headlines
updated 12:56 pm ET
Nov. 20, 2024 — While toxic in high concentrations, copper is essential to life as a trace element. Many tumors require significantly more copper than healthy cells for growth -- a possible new point of attack for ...
Nov. 20, 2024 — Antibacterial drugs are important for treating infections. But increasingly, bacterial resistance to current drugs -- so they don't work well, or even at all -- means new ones are urgently needed. ...
Nov. 20, 2024 — Asking children 'What does a scientist look like?' now results in more illustrations of women and people of color than decades ago. But do generative artificial intelligence (AI) tools also depict ...
Nov. 20, 2024 — Chemists have developed a novel way to capture and convert carbon dioxide into methane, suggesting that future gas emissions could be converted into an alternative fuel using electricity from ...
Nov. 18, 2024 — Surfaces play a key role in numerous chemical reactions, including catalysis and corrosion. Understanding the atomic structure of the surface of a functional material is essential for both engineers ...
Nov. 12, 2024 — The airflow from an indoor badminton court's HVAC system and cross ventilation can affect the path of a birdie and have a significant role in play, but new research proposes that different roof ...
Nov. 12, 2024 — An interdisciplinary team explored possible regularities in vocal emotional expressions by comparing expressive interjections, such as 'wow,' to ...
Nov. 19, 2024 — Energy stored in thermochemical materials can effectively heat indoor spaces, particularly in humid regions, according to ...
Nov. 19, 2024 — Houses for sale in a flood zone are around 10% cheaper than surrounding areas, according to new research. However, the reduced price tag is not worth the extra risk and can burden buyers with ...
Nov. 19, 2024 — A new theory, that explains how light and matter interact at the quantum level has enabled researchers to define for the first time the precise shape of a single ...