Reference Terms
from Wikipedia, the free encyclopedia
Drag (physics)
For a solid object moving through a fluid or gas, drag is the sum of all the aerodynamic or hydrodynamic forces in the direction of the external fluid flow.
Note: The above text is excerpted from the Wikipedia article "Drag (physics)", which has been released under the GNU Free Documentation License.
Related Stories
1
2
Matter & Energy News
December 12, 2024
Dec. 11, 2024 — An interdisciplinary team has created tiny bubble-like microrobots that can deliver therapeutics right where they are needed and then be absorbed by the ...
Dec. 4, 2024 — Since the 1960s, scientists who study X-rays, lightning and similar phenomena have observed something curious: In lab experiments replicating these occurrences, electrons accelerated between two electrodes can be of a higher energy than the voltage ...
Dec. 2, 2024 — A theoretical study suggests that small black holes born in the early universe may have left behind hollow planetoids and microscopic tunnels, and that we should start looking within rocks and old ...
Nov. 12, 2024 — Global carbon emissions from fossil fuels have reached a record high in 2024, according to new ...
Latest Headlines
updated 12:56 pm ET
Dec. 2, 2024 — A new collection of published papers offers the most detailed and comprehensive breakdown yet of how water injected into the Permian Basin during oil ...
Dec. 12, 2024 — A research team has developed an ultra-thin, flexible film that could power next-generation wearable devices using body heat, eliminating the need for ...
Dec. 11, 2024 — The Sun generates its tremendous energy through the process of nuclear fusion. At the same time it releases a continuous stream of neutrinos -- ...
Dec. 12, 2024 — Diverse and inclusive teams are not merely a moral imperative but also a catalyst for scientific excellence in robotics, scientists point out in a study. The team has outlined how a scientific ...
Dec. 12, 2024 — Copper-oxide (CuO2) superconductors, such as Bi2Sr2CaCu2O8+ (Bi2212), have unusually high critical temperatures. Optical reflectivity measurements of ...
Dec. 12, 2024 — Ferrocene is a key molecule for developing molecular machines. However, it readily decomposes on the surface of flat noble metal substrates, marking ...
Dec. 12, 2024 — A researcher has developed a new technique to detect long wave infrared (LWIR) photons of different wavelengths or 'colors.' The new detection and ...
Dec. 12, 2024 — Researchers have unlocked a new method for producing one class of 2D material and for supercharging its magnetic ...
Dec. 12, 2024 — The future of breast cancer screening and risk-reducing strategies is being shaped by artificial intelligence (AI), according to a recent review ...
Dec. 12, 2024 — Household plumbing is alive with microbes; environmental engineers are working to study those ecosystems to ensure clean water flows in ...