You are going to invent a new device that people can use instead of a microwave to warm up leftovers.

OK.  I would build it the same shape and size as a microwave oven, but I would leave out all the normal electronics.

In the side compartment, in place of the electronics, at the top, I would put a little gas flame, like a Bunsen burner.  In the bottom of the side compartment, I would put a treadmill with two strong hamsters.  Then, I would install ductwork in the compartment so that when the hamsters turn the wheel, some fan-blades along the rim of the wheel would blow the hot air from the gas flame down and into the big food compartment.  This would warm the left-overs WITHOUT using electricity from the wall outlet, and without spraying any hazardous high-power RF energy into the kitchen.  

the answer to this is proletariats.

hope this : )

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada