They were kind-hearted and rarely did anything that was cruel. Supposingââ It was cruel to excite and upset her just for that; it made the pain worse. The contrasts were so cruel that they scorched the eyes of the soul. Those who bring them on us seem captious, thoughtless, cruel. He is cruel, and the very incarnation of selfishness, he said. If he had been guilty, what was that to the cruel world so ready to punish, so ready to do worse! I did not know how cruel they were, or I would have come long ago. Judge what a cruel wound for the heart of that poor shepherd! It's just cruel the way that poor old horse has been neglected.
My grandfather was watching a microwave testing rig, and he realized that the peanut-cluster bar in his pocket started to melt â it got quite warm, Rod Spencer, inventor and grandson of Percy Spencer, told Business Insider.
The microwaves from the radar set he was working on were cooking the candy bar in his pocket! With a little experimentation, Spencer figured out that the microwaves could be concentrated to heat food. He created the first working microwave oven, and the first food he cooked in it was popcorn. Microwave ovens use microwaves, which are radio waves at a frequency of approximately 2,500 megahertz, to heat food. Microwaves are absorbed by water, fats and sugars and are immediately converted to heat. The microwaves penetrate food quickly, so they cook food evenly and quickly.