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Direct linkForinash, Kyle; Dixon, Cory L. – Physics Teacher, 2014
The effects of inhaled helium on the human voice were investigated in a recent article in "The Physics Teacher." As mentioned in that article, demonstrations of the effect are a popular classroom activity. If the number of YouTube videos is any indication, the effects of sulfur hexafluoride on the human voice are equally popular.…
Descriptors: Physics, Science Instruction, Scientific Concepts, Science Activities
Horath, Larry; Horath, Elyse – Tech Directions, 2010
Anyone who plays a guitar needs a stand to hold the guitar when he or she is not playing it. A guitar is not an instrument that one can lay down or prop against the wall without risking potentially catastrophic and long-term damage. There are several options in pre-made guitar stands made for single or multiple guitars, but as an alternative that…
Descriptors: Science Activities, Musical Instruments, Material Development, Program Descriptions
