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The prefix " radio-" in the title originates from the combining form of Latin radius, a ray: here it refers to electromagnetic radiation. A Crookes radiometer, consistent with the suffix " -meter" in its title, can provide a quantitative measurement of electromagnetic radiation intensity. This can be done, for example, by visual means (e.g., a spinning slotted disk, which functions as a simple stroboscope) without interfering with the measurement itself. Raindrop Modern Globe Chandelier Staircase Lighting Tall Long Chandelier Adjustable Length Multi Lighting for Dining Room Long Chandelier

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John Lewis plc, registered office: 171 Victoria Street, London SW1E 5NN. Authorised and regulated by the Financial Conduct Authority (Register no. 724309) for the purpose of introducing the credit provided by Creation Consumer Finance Ltd, registered office: Wellington Buildings, 2-4 Wellington Street, Belfast BT1 6HT. Brush, S. G.; Everitt, C. W. F. (1969). "Maxwell, Osborne Reynolds, and the Radiometer". Historical Studies in the Physical Sciences. 1: 105–125. doi: 10.2307/27757296. JSTOR 27757296. Keep collections to yourself or inspire other shoppers! Keep in mind that anyone can view public collections - they may also appear in recommendations and other places. Metal World Map, Metal Wall Decor, Metal Wall Art, World Map Wall Art, Metal Art, Housewarming Gift, Wall Hanging (97x56 cm/ 118x68 cm) Metal World Map Continents, Interior Metal Sign, Metal Wall Art, Metal Wall Decor, 4 Pieces Wall Hanging, Home Office Living Room Decor

World map globe wall art, Metal wall decor, Home decoration, Office decor, Metal world map, Globe wall art, Meridians wall decor Bell, Mary; Green, S. E. (1933). "On Radiometer Action and the Pressure of Radiation". Proceedings of the Physical Society. 45 (2): 320–357. Bibcode: 1933PPS....45..320B. doi: 10.1088/0959-5309/45/2/315. . 1933 Bell and Green experiment describing the effect of different gas pressures on the vanes. The air pressure inside the bulb needs to strike a balance between too low and too high. A strong vacuum inside the bulb does not permit motion, because there are not enough air molecules to cause the air currents that propel the vanes and transfer heat to the outside before both sides of each vane reach thermal equilibrium by heat conduction through the vane material. High inside pressure inhibits motion because the temperature differences are not enough to push the vanes through the higher concentration of air: there is too much air resistance for "eddy currents" to occur, and any slight air movement caused by the temperature difference is damped by the higher pressure before the currents can "wrap around" to the other side. [6] Movement with radiation [ edit ] Ohio, The University of Akron. "the radiometer using inquiry to teach energy conversions". The University of Akron, Ohio . Retrieved 10 October 2021.

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Loeb, Leonard B. (1934) The Kinetic Theory of Gases (2nd Edition);McGraw-Hill Book Company; pp 353–386

Another incorrect theory was that the heat on the dark side was causing the material to outgas, which pushed the radiometer around. This was later effectively disproved by both Schuster's experiments [9] (1876) and Lebedev's (1901) [8] Partially correct theory [ edit ] Wolfe, David; Larraza, Andres (2016). Alejandro Garcia. "A Horizontal Vane Radiometer: Experiment, Theory, and Simulation". Physics of Fluids. 28 (3): 037103. arXiv: 1512.02590. Bibcode: 2016PhFl...28c7103W. doi: 10.1063/1.4943543. S2CID 119235032. Customizable Turkish Mosaic Floor Lamp, 11 Globe - 9 Globe - 7 Globe - 5 Globe Turkish Lamp, 7 inch Globes, Moroccan Standing Light Metal World Map, Metal Wall Map, Housewarming Gift, 3D UV Printed Metal World Map, Wall Art Decor, Metal Travel Map, Birthday Gift US 182172,Crookes, William,"Improvement in Apparatus For Indicating The Intensity of Radiation",published 1876-09-12

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When exposed to sunlight, artificial light, or infrared radiation (even the heat of a hand nearby can be enough), the vanes turn with no apparent motive power, the dark sides retreating from the radiation source and the light sides advancing. Reynolds, Osborne (1 January 1879). "On certain dimensional properties of matter in the gaseous state …". Philosophical Transactions of the Royal Society of London. 170: 727–845. doi: 10.1098/rstl.1879.0078. ; Part 2.Maxwell, J. Clerk (1 January 1879). "On stresses in rarefied gases arising from inequalities of temperature". Philosophical Transactions of the Royal Society of London. 170: 231–256. doi: 10.1098/rstl.1879.0067.