Obit: Crazy Kitchen co-creator John Arnold designed Ottawa museums

When Canada wanted a standout pavilion for Expo 67, and a modern new science museum for Centennial Year, it handed a lot of the design work to a young man just reaching his thirties.
It was no gamble. By the early 1960s, John Arnold had already built a reputation as a designer with artistic flair who also understood the nuts and bolts of construction and electronics.
And in later years, every time you stepped into the Crazy Kitchen at the Canada Science and Technology Museum, you walked through