I checked a few, such as the rollerskates that were invented in Denmark,
I did a search on it too and came up with Belgium as the inventor this time. Who knows? It's one of those things where nobody can agree because nobody was there.
Insulin that was invented in Canada, by a German who went there to use the lab at University of Toronto
No, it was invented/discovered by Frederick Banting, who won the Nobel Prize in 1923 in Physiology or Medicine for it. Banting was born in Ontario.
And plexiglass, which seemed to have been developed in several labs, by Dupont, which is a company in Delaware (I actually thought DuPont was a Canadian company till I did a search on that, and the patent was bought by a Pensylvania company to use as windshields for planes.
Copy and paste...
Every time you slip on a pair of safety glasses before firing up the tablesaw or swinging a hammer, you're shielding your eyes with one more great Canadian workshop invention. Those shatterproof plastic lenses are the direct result of the work of Dr. William Chalmers.
While a graduate research student at McGill University in the early 1930s, Chalmers perfected a technique of producing transparent polymerized methyl methacrylate—or, in lay terms, acrylic.
He discovered that methacrylic ethyl ester and methyacrilic nitrile could be readily polymerized—that is, joined together at the molecular level to create new substance. In this case the new material was thermoplastic resin characterized by its optical clarity.
The idea of methyl methacrylate polymers goes back as far as 1877, but previous production attempts always resulted a smoky, opaque material. Chalmers was the first to produce a clear, workable product.
He was granted the patent in 1931. He then sold his invention to Imperial Chemical Industries. In 1936, ICI granted a license to DuPont to produce the material commercially.
Since DuPont acquired the formula, Chalmers's transparent acrylic has gone into everything from car taillights to airplane windshields to blade guards to, yes, safety glasses. A clear innovator.
http://www.canadianhomeworkshop.com/stuff/inventions2.shtml
