Many different types of energy can be converted into heat energy. Light, electrical, mechanical, chemical, nuclear, sound and thermal energy itself can each cause a substance to heat up by increasing the speed of its molecules. So, put energy into a system and it heats up, take energy away and it cools.
Alexander Alex Robert Hirsch (born June 18, 1985) is the creator and former executive producer of the American animated television series, Gravity Falls. He voiced two of the main characters, Grunkle Stan and Soos. He also voiced supporting and recurring characters such as: Old Man McGucket, Bill Cipher, the gnomes and many others.
Rochester, Indiana, U.S. Nicole Gale Anderson is an American actress. She is best known for her role as Macy Misa in the Disney Channel Original Series JONAS (and the susequent spinoff JONAS L.A), and also known for the role of Kelly Parker on the ABC Family series Make It or Break It. She will played Miranda Collins on Ravenswood and made an appearance in Grave New World.