By Michael Matthews, Colin F. Gauld, Arthur Stinner
The pendulum is a common subject in fundamental and secondary colleges, yet its complete strength for studying approximately physics, the character of technological know-how, and the relationships among technological know-how, arithmetic, expertise, society and tradition is seldom realised.
Contributions to this 32-chapter anthology take care of the technology, heritage, technique and pedagogy of pendulum movement. there's abundant fabric for the richer and extra cross-disciplinary therapy of the pendulum from user-friendly college to highschool, and during to complex college sessions.
Scientists will worth the reports at the physics of the pendulum; historians will savour the specified remedy of Galileo, Huygens, Newton and Foucault’s pendulum investigations; psychologists and educators will study from the papers on Piaget; lecturers will welcome the various contributions to pendulum pedagogy.
All readers will come away with a brand new expertise of the significance of the pendulum within the beginning and improvement of contemporary technology; and for its centrality in such a lot of elements of society and tradition.
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Extra resources for The Pendulum: Scientific, Historical, Philosophical and Educational Perspectives
Example text
Org/pdf/physics/0306088. : 2003: ‘Friction at the Mesoscale’, submitted to Contemporary Physics. org/html/physics/0308077. net Abstract. The simple pendulum is a model for the linear oscillator. The usual mathematical treatment of the problem begins with a differential equation that one solves with the techniques of the differential calculus, a formal process that tends to obscure the physics. In this paper we begin with a kinematic description of the motion obtained by experiment and a dynamic description obtained by the application of Newton’s laws.
PETERS Figure 8. Logarithmic decrement versus period squared for the brass pendulum. changes, rather than to some viscosity effect. Moreover, note that there is a remanent damping as the period goes toward zero. In a plot versus T the intercept is found to be negative and therefore unrealistic. A similar behavior is found for the solder pendulum, as shown in Figure 9, although the slope of the line is significantly greater. Consider the slopes of the indicated linear fit equations. 5 times greater than the damping of the brass pendulum.
In practice, this may be the exception rather than the rule. Therefore, the following ‘fix’ is presented. THE PENDULUM IN THE 21ST CENTURY-RELIC OR TRENDSETTER 33 Figure 10. Torsion pendulum decay that is asymmetric. GENERALIZED METHOD Notice in Equation (10) the numerator term that involves a set which begins with 1 and ends with N. It is also possible to use the set that begins with 2 and ends with N + 1 (with the denominator adjusted to (θ2 − θ3 + θ4 − θ5 . −θN ). This half-cycle shift in the set gives essentially the same result as the former when the decay is ideal.