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A dimmer consisted of a glass jar filled with salt water with a metal electrode at each end. As the upper electrode was moved away from the lower [3] electrode, the resistance increased and the lights got dimmer. [4] [5] [6] The brightness also depended on the concentration of salt in the water. [4]
Early examples of a rheostat dimmer include a salt water dimmer, a kind of liquid rheostat; the liquid between a movable and fixed contact provided a variable resistance. The closer the contacts to each other, the more voltage was available for the light.
The website provides a free online collection of multimedia including educational games, videos, images, and lesson plans, with a focus on game-based learning. Spongelab.com is a web-based teaching platform that allows educators to combine science, discovery learning tools and technology to create a visually engaging interactive whole. [ 1 ]
A liquid rheostat or water rheostat [1] or salt water rheostat is a type of variable resistor. This may be used as a dummy load or as a starting resistor for large slip ring motors. In the simplest form it consists of a tank containing brine or other electrolyte solution, in which electrodes are submerged to create an electrical load .
Today's Strands game deals with molds/shapes for a yummy treat. NYT Strands Spangram Hint: Is it Vertical or Horizontal? Today's spangram is horizontal (left to right).
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.
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The amplitude of the electrical output from these fish can range from 10 to 860 volts with a current of up to 1 ampere, according to the surroundings, for example different conductances of salt and freshwater. To maximize the power delivered to the surroundings, the impedances of the electric organ and the water must be matched: [13]