The Medicine Chest

Items

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  Echolocation (Part two)

  "In Steinbeck’s 'Of Mice and Men', Crooks consoles the simple, unaffected and kindly Lennie when his friend, George, doesn’t return from town. He tells him he should be glad that he at least has someone. 'S’pose you didn’t have nobody. S’pose you couldn’t get into the bunk-house and play rummy ‘cause you was black. How’d you like that? (…) A guy sits alone out here at night, maybe readin’ books or thinkin’ or stuff like that. Sometimes he gets thinkin’ an’ he got nothing to tell him what’s so an’ what ain’t so. Maybe if he sees somethin’, he don’t know whether it’s right or not. He can’t turn to some other guy and ast him if he sees it too. He can’t tell. He got nothing to measure by. I seen things out here. I wasn’t drunk. I don’t know if I was asleep. If some guy was with me, he could tell me I was asleep, an’ then it would be alright. But I jus’ don’t know' "(Steinbeck 1973:62 in Liebenberg 2011: 102).
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  Geometry in unlikely places

  "These bladder stones are most likely made up of calcium oxalate; they are faceted because they rub against each other. (Faceting only occurs when there are two or more stones together)".
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  Resonance

  Demonstration of sympathetic vibration using the optical (flame) microphone