Solving Teapot Effect
(PhysOrg.com) -- A team of scientists from France have worked out why teapots dribble at low flow rates, and how to stop them. The effect is called the "teapot effect", and solving it could finally put an end to tea stains ...
News tagged with flow velocities
Straighten up and fly right: Moths benefit more from flexible wings than rigid (w/ Videos)
Most scientists who create models trying to understand the mechanics and aerodynamics of insect flight have assumed that insect wings are relatively rigid as they flap.
General Physics
Jun 29, 2009
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Even modern hydropower plants pose major threat to river habitats, finds study
Even modern and supposedly gentler hydropower plants cause considerable damage to river ecosystems. This is shown by a study by Prof. Jürgen Geist from the Chair of Aquatic Systems Biology at the TUM School of Life Sciences ...
Ecology
Feb 27, 2024
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Aquatic plants are essential to the ecosystem, but need good management, say researchers
Submerged macrophytes are declining in many shallow lakes around the world, with more algae and free-floating plants taking their place. But an opposite trend is also emerging: water bodies with improved water quality are ...
Plants & Animals
Jun 2, 2023
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Scientists measure a debris flow in unprecedented detail
Debris flows are fast-moving and highly variable mixtures of soil, rock, water, and trees that can wreak havoc on downslope communities. Small debris lags behind larger particles, but it is not clear how this sorting occurs ...
Earth Sciences
Mar 13, 2023
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Groundwater flow accelerates permafrost degradation on the Qinghai-Tibet Plateau
Climate warming and permafrost thawing on the Qinghai-Tibet Plateau (QTP) have changed the distributive features of permafrost, which leads to alterations in soil moisture and permeability, and exerts profound impacts on ...
Earth Sciences
Feb 17, 2023
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Mapping out meteorites in Antarctica: Uncovering our solar system's deep past
A Belgian-Dutch team of scientists has created the first-ever "treasure map" that shows where in Antarctica meteorites are likely to be found. Meteorites are chunks of stone-like material that can be found on the surface ...
Planetary Sciences
Apr 1, 2022
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Insecticide and climate warming impact stream insect communities
New research highlights the impact of one of the world's most widely used insecticides on stream macroinvertebrate communities in the context of climate change.
Environment
Sep 16, 2021
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Reducing the risk of blood clots in artificial heart valves
Most people are familiar with turbulence in aviation: certain wind conditions cause a bumpy passenger flight. But even within human blood vessels, blood flow can be turbulent. Turbulence can appear when blood flows along ...
Soft Matter
Jan 13, 2020
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Non-thermal emission from cosmic rays accelerated in HII regions
Radio observations at metre-centimetre wavelengths shed light on the nature of the emission of HII regions. Usually, this category of objects is dominated by thermal radiation produced by ionised hydrogen, namely protons ...
Astronomy
Sep 27, 2019
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