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463px-WaterScrewPerpetualMotion

Robert Fludd's 1618 "water screw" perpetual motion machine from a 1660 wood engraving.; the first recorded attempt to describe such a device.

About Matt Lehrman

Matt Lehrman is a national thought-leader in the cause of audience building. As principal of Audience Avenue, Matt specializes in coaching & facilitating cross-organizational collaboration for audience activation & growth.

Matt travels the nation as the author & presenter of AUDIENCES EVERYWHERE a keynote/workshop that launches organizations of all sizes & missions into a practical discussion of ways to challenge outdated beliefs and to boldly articulate new strategies for audience attraction and engagement.

Follow Matt on Twitter: @MattLehrman

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