8,874 research outputs found

    The Uniform Schanuel Conjecture Over the Real Numbers

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    We prove that Schanuel's conjecture for the reals is equivalent to a uniform version of itself

    The Desktop Muon Detector: A simple, physics-motivated machine- and electronics-shop project for university students

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    This paper describes an undergraduate-level physics project that incorporates various aspects of machine- and electronics-shop technical development. The desktop muon detector is a self-contained apparatus that employs plastic scintillator as a detection medium and a silicon photomultiplier for light collection. These detectors can be used in conjunction with the provided software to make interesting physics measurements. The total cost of each counter is approximately $100.Comment: 29 pages, 14 figure

    Coupling Between Thermal Oscillations in the Surface of a Micro-Cylinder and Vortex Shedding

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    his article studies the coupling between prescribed thermal oscillations in the surface of a micro-cylinder and vortex shedding. We deal with the unsteady, laminar, compressible flow regime where the aerodynamics forces have a periodic behavior. It is shown that appropriate spatial and time-dependent temperature oscillations on the surface of the micro-cylinder create a resonance that controls the amplitude and frequency of both lift and drag coefficients. In practice, what we study is a mechanism to modulate the amplitude and frequency of mechanical loads of aerodynamics origin in a micro-structure by using surface temperature fluctuations as the control parameter
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