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Article #1487Physics final exam problem/lab exp/etc
From: The Philistine
Date: Thu, 19 May 1994 23:36
Date: Thu, 19 May 1994 23:36
26 lines
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2175 bytes
The U-Mass Amherst library is 26 stories tall, was built in 1970, condemned in 1979 for a variety of reasons, and renovated in the early 80's. 0ne of the concerns in the 70's (not the worst, which was water damage to structural concrete) was the bricks falling off the outside. Back then, this was traced to the fact that the contractor had neglected to insert the expansion joints every three stories, and had also spilled mortar into expansion spaces. Thus when the sun shone on it and it expanded.... (Also, the steel tie-rods weren't fastened properly, some of the bricks which were cut on site -by eye- were just a little too long, etc.) All of this is in the report of the Ward Commission if anyone wants to see it. Anyway, the bricks are coming off again: they are coming off the south side on the 7th & 12th floors, and perhaps elsewhere. There is a chain-link fence to keep people away from the building, and if you look inside it, you will see small brick chips. I thought this might be of interest to people in K-12 -- either in terms of a final exam question, lab experiment (how much does the average brick fragment weigh?), or even field trip. The only caveat would not to come out here on a windy day, as the area is a wind-tunnel and not a pleasant place to stand. I don't know exactly how tall the building is, but the bricks are not coming off the top. Regards ED
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 16cfd8,d8de5a524ab3386d,start X-Google-Attributes: gid16cfd8,public X-Google-ArrivalTime: 1994-05-19 18:22:18 PST Path: arc1-ca.pugleaf.net!bga.com!news.sprintlink.net!demon!pipex!swrinde!gatech!howland.reston.ans.net!news.cac.psu.edu!news.pop.psu.edu!psuvax1!news.cc.swarthmore.edu!netnews.upenn.edu!news.amherst.edu!nic.umass.edu!twain.ucs.umass.edu!ed From: ed@twain.ucs.umass.edu (The Philistine) Newsgroups: bit.listserv.physhare Subject: Physics final exam problem/lab exp/etc Date: 19 May 1994 23:36:16 GMT Organization: University of Massachusetts, Amherst Lines: 26 Message-ID: <2rgt5g$d7f@nic.umass.edu> NNTP-Posting-Host: twain.ucs.umass.edu X-Newsreader: TIN [version 1.2 PL2]