Photospheric motions are believed to be the source of coronal heating and of velocity fluctuations detected in the solar corona. A numerical model. based on the shell technique applied on reduced magnetohydrodynamics equations. is used to represent energy injection due to footpoint motions. https://www.markbroyard.com/save-big-quest-mv40-gas-floor-fryer-40-lb-casters-natural-gas-discount-best-mega/