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Forced vibration and resonance are often used in engineering and science research. For example, in fields of architecture and mechanical engineering, resonance is unfavorable and often needs to be....
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Measurement of current-voltage characteristics curve of nonlinear element is an important course in fundamental physical experiment in colleges and universities, and also one of experimental techn....
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Moment of inertia refers to a physical quantity of inertia of a rigid rotating body, which is related to the mass distribution of rigid body as well as the position of the shaft. To correctly meas....
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Electron spin resonance is named as the electron paramagnetic resonance also, which means that when the electron spin magnetic moment is affected by the electromagnetic wave of response frequency ....
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In 1896, P. Zeeman, the physicist of Holland discovered that when the light source was in the strong magnetic field, an original spectral line was split into several lines. The split spectral line....
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It is a white or pale yellow crystal powder extracted from dry capsicum.
Its main components are capsaicin, dihydrocapsaicin, and other alkaloids, such as nordihydrocapsaicin, homodihydrocapsaic....
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Sucralose is one of the most excellent sweeteners with the highest sweetness so far. It is firstly researched and reported by the British cooperation. After a series of strict experiments for abou....
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This instrument is a spectral experiment instrument with high precision, mainly used to observe and record the “Zeeman Effect”. This is one of the indispensable experiments of modern physics.
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In optical experiment, a photo sensor is necessary for measurements such as the illuminance of a position, luminous intensity of light source, light distribution of diffraction and interference, o....
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The ultrasonic wave means that the sound wave of which frequency is higher than the upper limit of hearing of ears. The ultrasonic technique is the modern acoustic one that is used widely. The ult....
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