Question

At UPenn’s Moore School, J. Presper Eckert invented a technology that uses this material alongside piezo crystal transducers made of quartz. Herman Hollerith’s tabulating machine, used in the 1890 Census, (15[1])worked by placing punch cards above containers of this material. According to Maurice Wilkes, Alan Turing proposed the use of gin instead of this material when building the EDSAC (“ED-sack”). Early computers like the UNIVAC (“UNI-vack”) implemented delay-line memory by sending sound waves through tubes of this material. (15[1])A key (-5[1])improvement in Thomas Edison’s light bulbs was better versions of (-5[1])Geissler and Sprengel pumps, which use this material to produce a (*) vacuum. The liquid crystal company Chisso Corporation dumped a chemical containing this metal in the water supply of Minamata, Japan. (10[1])For 10 points, fluorescent lamps use vapors of what toxic metal that is liquid (10[1])at room temperature? ■END■ (10[1])

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