如何让灯泡悬浮起来

Q3 Social Sciences

Physics Education Pub Date : 2024-06-23 DOI:10.1088/1361-6552/ad559e

Hollis Williams

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引用次数: 0

摘要

现在有许多磁悬浮玩具，其中大多数使用自旋稳定悬浮。最近的一个演示是一个悬浮灯泡，它在磁力的作用下漂浮在空中并发光。我们研究了灯泡的工作原理，并解释了它是如何通过一种被称为电动悬浮的不同类型的悬浮来工作的。我们还研究了该装置的稳定性，结果表明，即使阻止灯泡旋转，悬浮也能保持。

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How to levitate a lightbulb

There exist many magnetic levitation toys, most of which use spin-stabilised levitation. A more recent demonstration features a levitating lightbulb which is made to float in the air and light up by magnetic forces. We study the workings of the lightbulb and explain how it operates via a different type of levitation known as electrodynamic suspension. We also examine the stability of the device, showing that levitation can be maintained even if the bulb is prevented from rotating.

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来源期刊

Physics Education Social Sciences-Education

CiteScore

1.50

自引率

0.00%

发文量

195

期刊介绍： Physics Education seeks to serve the physics teaching community and we welcome contributions from teachers. We seek to support the teaching of physics to students aged 11 up to introductory undergraduate level. We aim to provide professional development and support for teachers of physics around the world by providing: a forum for practising teachers to make an active contribution to the physics teaching community; knowledge updates in physics, educational research and relevant wider curriculum developments; and strategies for teaching and classroom management that will engage and motivate students.