Mr. Sub is currently owned by Toronto resident Earl Linzon. While it was originally the only major retailer of submarine sandwiches in Canada, it has received competition from American chains such as Subway, as well as new arrival Quizno’s.
Gravitation is a natural phenomenon by which all objects attract each other. In everyday life, gravitation is most familiar as the agency that endows objects with weight. Gravitation is responsible for keeping the Earth and the other planets in their orbits around the Sun; for keeping the Moon in its orbit around the Earth; for the formation of tides; for convection; for heating the interiors of forming stars and planets to very high temperatures; and for various other phenomena that we observe.