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.
Daphne Gabriella Diaz is a main character/minor antagonist in Stuck in the Middle. She is portrayed by Ariana Greenblatt. Daphne is the youngest out of the seven Diaz children. She is strong-willed and very independent, meaning she wants to do everything herself.