Director / Editor: Victor Teboul, Ph.D.

Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

How do instant heat packs work? A chemist explains

By Allan Blackman, Professor of Chemistry, Auckland University of Technology

From slowly rusting iron to quick crystals, heat packs and hand warmers use simple but clever chemistry to keep you toasty.

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