Musuem of science in boston

there is a roller coaster exbhit in Boston, Mass in the science musuem. It is going to last until september

I went to that museum in the summer of 1989 or 90 (forget which) and they had a massive coaster (probably 40 feet tall) for pool balls; however, it wasn't working. They also had a smaller pool ball coaster of the typical kind seen in malls, etc., with the trampoline, loop, xylophone, elevator, etc.

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He let the contents of the bottle do the thinking; can't shake the devil's hand and say you're only kidding.

OMG! They still have that rolling ball coaster model? I remember that from when I was 9 or 10 years old going to that museum with my aunt! I used to stand and watch that ball roll around and around its track. Even then, I was obsessed! ;)