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01434agm a2200409Ia 4500 001 D91E7DF63A6311E09BD62DC26AFF544E 003 SILO 005 20110217010059 007 vd cvaizq 008 110203p20102006cau023 vleng d 024 10 $a 631865413027 028 42 $a GH4130 $b Cerebellum 035 $a (OCoLC)700297055 040 $a TEFMT $c TEFMT $d SILO $d TEF $d SILO 050 4 $a QB334 $b .B74 2010 082 04 $a 531/.14 $2 22 245 0 $a Break it down experiments. $p Gravity $h [videorecording] / $c Exploration Production Inc. 246 30 $a Gravity 260 $a San Francisco, CA : $b Cerebellum, $c c2010. 300 $a 1 videodisc (23 min.) : $b sd., col. ; $c 4 3/4 in. 538 $a DVD. 500 $a aTitle from container. 500 $a "High school grade level." 520 $a Elevators move the equivalent of the world's population every 72 hours but how safe are they? Break It Down tests the strength of cable against the force of gravity with surprising results. 650 0 $a Gravity $v Juvenile films. 650 0 $a Physics $v Juvenile films. 650 0 $a Gravity. 650 0 $a Physics. 655 0 $a Educational films. 655 0 $a Nonfiction films. 650 0 $a Cerebellum. 710 2 $a Exploration Production Inc. 941 $a 1 945 $a dvv 952 $l GEPG771 $d 20210722030337.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=D91E7DF63A6311E09BD62DC26AFF544E 994 $a C0 $b IW9Initiate Another SILO Locator Search