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Why does this page have a Related patents section? That seems very unwiki-like to me. Bostonvaulter (talk) 08:38, 20 April 2009 (UTC)
I'm going to remove the related patents section because I don't think it belongs. 128.171.61.12 (talk) 19:58, 23 April 2009 (UTC)
Edited the 'Precursor' section to make it sound less like an advertisement and cleaned up the grammar. Junipel (talk) 09:35, 15 January 2014 (UTC)
Grammar edit
I changed the original sentence "In the Chicago Museum of Science and Industry, there is a Mindball station where you can play" as it struck me as artificially constructed, possibly directly translated. --134.245.229.153 (talk) 10:11, 4 February 2014 (UTC)