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01276nam a22003258a 4500 001 48AFA8F02ACD11DE8802FF04A8D7520A 005 20181108012225 008 900711s1991 mnu j b 00010 eng 010 $a 90003961 020 $a 9780875184562 020 $a 0875184561 040 $a DLC $c DLC $d SILO 050 00 $a QB209.5 $b .D37 1991 082 00 $a 530.1/1 $2 20 100 10 $a Darling, David J. 245 1 $a Could you ever build a time machine? / $c by David Darling. 260 0 $a Minneapolis, Minn. : $b Dillon Press, $c c1991. 263 $a 9101 300 $a 60 p. : $b ill., photos 504 $a Includes bibliographical references. 520 $a Examines the nature of time, time machines, and the possibility of time travel, discussing Einstein's relativity theory and the chances of time travelers from the future visiting us in the present. 650 0 $a Black holes (Astronomy) $x Children's nonfiction. 650 0 $a Relativity (Physics) $x Children's nonfiction. 650 0 $a Time $x Children's nonfiction. 650 0 $a Time travel $x Children's nonfiction. 939 $a 541381 941 $a 2 952 $l GZPE631 $d 20240305034635.0 952 $l ZYPE837 $d 20090701080000.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=48AFA8F02ACD11DE8802FF04A8D7520AInitiate Another SILO Locator Search