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.
âGravity Fallsâ Creator Alex Hirsch Will Develop An Animated Series for Fox. Alex Hirsch, late of Disneyâs Gravity Falls, is developing an animated series for Fox. âIâm cooking up some brand-new weirdness,â Hirsch, 30, told Variety, which first reported the news. Hirsch will develop a script and presentation pilot.