<i>Physics Demonstration Experiments, Vol. 1: Mechanics and Wave Motion, Vol. 2: Heat, Electricity and Magnetism, Optics, Atomic and Nuclear Physics.</i>

Meiners, Harry F.; Anderson, David L.

doi:10.1063/1.3022386

Cited by 9 publications

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“…1 Naba 2 and Nicklin 3 then suggested ideas for obtaining the frequencies of resonance of the singing rod in a classroom or laboratory setting. Rossing and Russell 4 provided an excellent review of longitudinal, torsional, and bending wave modes in a bar.…”

Section: Introductionmentioning

confidence: 99%

The song of the singing rod

Anderson

Peterson

2012

The Journal of the Acoustical Society of America

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This paper discusses basic and advanced aspects of the sound radiated by the singing rod demonstration commonly used in physics courses to depict an example of longitudinal waves. Various methods of exciting these rods are discussed along with the issues associated with each method. Analysis of the sound radiated by various rods with small-signal and large-signal excitations is presented for four different rods. The small-signal sound radiation consists of a fundamental frequency and odd harmonics (each corresponding to a longitudinal mode) when the rod is held at its midpoint. Large-signal sound radiation is highly dependent on the rod's geometry. The large-signal sound can possess strong even harmonics and/or beating tones resulting from modal coupling of transverse bending modes and either subharmonic longitudinal modes or torsional modes. A detailed analysis of the sound radiation from a singing rod can provide excellent laboratory exercises or classroom demonstrations for advanced undergraduate or graduate level acoustics courses whose scope includes resonances of a bar.

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Section: Introductionmentioning

confidence: 99%

The song of the singing rod

Anderson

Peterson

2012

The Journal of the Acoustical Society of America

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“…In order to record the trajectory of the ball on the rotating plate we used a paper sheet covered with a sheet of soft carbon paper used for old typewriters. A similar method was described by Meiners [5]. The paper sheet was fixed on the bakelite plate by means of small pieces of adhesive tape.…”

Section: Methodsmentioning

confidence: 99%

“…As the angular velocity of the Earth's rotation is too low (ω ≈ 0.73 × 10 −4 s −1 ) to reveal the deflection of the short-range trajectory of the body, in the experiment we should use a laboratory reference frame that rotates much faster. An adequate demonstration experiment for physics students was reported by Meiners [5]. It may be adapted to the requirements of a student laboratory.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the effect of Coriolis and centrifugal forces on the trajectory of a body in a rotating frame

1999

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“…A compromise is made easily for the spectral selection. Instead of a slit image, the image of the filament or arc of the light source is used for spectral selection [36]. The non-uniform intensity distribution in the image plane of the spectrum does not affect resolution noticeably.…”

Section: Demonstration Experimentsmentioning

confidence: 99%

Colour mixing based on daylight

Meyn

2008

Eur. J. Phys.

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Colour science is based on the sensation of monochromatic light. In contrast to that, surface colours are caused by reflection of wide sections of the daylight spectrum. Non-spectral colours like magenta and purple appear homologous to colours with spectral hue, if the approach of mixing monochromatic light is abandoned. It is shown that a large region of the colour space can be covered by mixing three primary colours derived from lossless spectral decomposition of daylight. These primaries are specified by hue, saturation and luminosity. Duality of additive and subtractive mixing is formulated quantitatively. Experimental demonstrations of calculated results are suggested. This paper is intended for undergraduate optics courses, and advanced interdisciplinary seminars on arts and physics.

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Physics Demonstration Experiments, Vol. 1: Mechanics and Wave Motion, Vol. 2: Heat, Electricity and Magnetism, Optics, Atomic and Nuclear Physics.

Cited by 9 publications

References 0 publications

The song of the singing rod

The song of the singing rod

Measurement of the effect of Coriolis and centrifugal forces on the trajectory of a body in a rotating frame

Colour mixing based on daylight

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