This number is calculated by considering both horizontal speed and vertical bounce of a tennis ball off a court.

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Finally, AgustaWestland surprised the HeliExpo crowd by revealing that it has been secretly testing an electrically powered tiltrotor, mixing the versatility of a vertical takeoff and land helicopter with the speed and range of a fixed-wing aircraft.

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Part of that need will be met in the future by a new generation of rotorcraft, including the revolutionary MV-22 tiltrotor that combines the vertical agility of a helicopter with the speed and range of a fixed-wing plane.

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Samsung Epic 4G is designed to deliver one of the best multi-media experience for business users in several vertical industries such as healthcare, education, public safety, construction and professional services through superior speed and display innovation.

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Speed's not its only standout feature either, as the Korean UAV can perform vertical takeoffs and landings ( VTOL) as well.

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Applied Micro Technology uses the vertical blanking interval to allow Internet data to piggyback on a television broadcast at up to five times the speed of a standard modem and telephone line.

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