Original sentence: The movement has presented a number of public demonstrations of Yogic Flying, such as the one in 1999 described by Bob Park, professor of physics at the University of Maryland and author of the weekly science Internet column, What's New
Edited sentence: To help convince people of these claims, the movement has presented a number of public demonstrations of Yogic Flying, such as the one in 1999 described by Bob Park, professor of physics at the University of Maryland and author of the weekly science Internet column, What's New