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Chain fountain. The chain fountain phenomenon, also known as the self-siphoning beads, Mould effect, or Newton beads is a physical phenomenon observed with a chain placed inside a jar. One end of the chain is pulled from the jar and is allowed to fall under the influence of gravity. This process establishes a self-sustaining flow of the chain ...
The Jodcast is a monthly podcast created by astronomers at Jodrell Bank Centre for Astrophysics (JBCA), University of Manchester in Manchester, England. It debuted in January 2006, aiming to inspire and inform the public about astronomy and related sciences, to excite young people with the latest astronomy research results, to motivate students to pursue careers in science, and to dispel ...
Tired light is a class of hypothetical redshift mechanisms that was proposed as an alternative explanation for the redshift-distance relationship. These models have been proposed as alternatives to the models that involve the expansion of the universe. The concept was first proposed in 1929 by Fritz Zwicky, who suggested that if photons lost ...
A soda geyser is a physical reaction between a carbonated beverage, usually Diet Coke, and Mentos mints that causes the beverage to be expelled from its container. The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle.
Stereokinetic stimulus, stereokinetic depth, stereokinetic illusion is an illusion of depth induced by moving two-dimensional stimuli. [1] A stereokinetic stimuli generates 3D perception based on 2D rotational motion. [2] A stereokinetic effect is created when flat displays are rotated in the frontal plane and are perceived as having three ...
In some ways the Jod-Basedow phenomenon is the opposite of two physiological compensation mechanisms, the Plummer effect and the Wolff–Chaikoff effect, which in normal persons and in persons with thyroid disease, suppress the thyroid hormone after ingestion of large quantities of iodine or iodide. However, unlike the Plummer and Wolff ...
An electro–optic effect is a change in the optical properties of a material in response to an electric field that varies slowly compared with the frequency of light. The term encompasses a number of distinct phenomena, which can be subdivided into. a) change of the absorption. Electroabsorption: general change of the absorption constants.
Granular convection is also exemplified by debris flow, which is a fast moving, liquefied landslide of unconsolidated, saturated debris that looks like flowing concrete. These flows can carry material ranging in size from clay to boulders, including woody debris such as logs and tree stumps. Flows can be triggered by intense rainfall, glacial ...