Troy James Hurtubise (November 23, 1963 – June 17, 2018) was a Canadian inventor and conservationist, noted for self-testing his often bizarre creations. These inventions included various ray generators, firepaste (an ablative heatproofing material), the Ursus personal armour suit and the Trojan Ballistics Suit of Armor. Personal life Born in Hamilton, Ontario, he moved to North Bay and later died in a vehicle collision west of there on June 17, 2018. Inventions Ursus suit Hurtubise built a metal suit for protection from grizzly bears; recorded as a National Film Board of Canada documentary and called Project Grizzly, in which Hurtubise tested the capabilities of the suit using himself as the test subject. This resulted in his Ig Nobel Prize for Safety Engineering in 1998. The documentary focuses on version six of the suit ("Ursa Mark VI"), and also includes clips of the previous versions being tested. Firepaste Firepaste (see also Starlite) is an intumescent white paste that, when dry, is flame and heat resistant. It has a consistency and texture similar to clay when wet and dries into a gray ceramic material which resembles concrete. The impetus for firepaste came from a failed fire test with the Ursus Mark VII where the metal exoskeleton heated up, popped the air bags and left Hurtubise with numerous burns. Like Project Grizzly, Hurtubise has tested the material on himself. For a demonstration for the media and military in summer 2004, he made a thin mask of the material, put it over his face, and aimed a specialized blowtorch at thousands of degrees directly at the mask. The temperature was intentionally much hotter than the temperatures reached by the Space Shuttle on reentry. A thermometer located between his face and the mask measured no appreciable temperature change below the mask after nearly ten minutes, and the integrity of the material was not compromised. Angel Light According to Hurtubise, this device made walls, hands, stealth shielding, and other objects transparent. He claimed that beams from the device had the side-effects of damaging electronic devices and killing goldfish. After testing the device on his own hand, he claimed he could see his own blood vessels and muscle tissue as clearly as if the skin had been pulled back, but the beam caused numbness and he began to feel ill. He also claimed to be able to read the licence plate on a car in his garage