Philip Harris Ticker Tape Timer (NBO) 12 x Airfoam flyers

12 x Airfoam flyers

with no movable or detachable parts

detection and measurement of phase differences in a signal received by two receivers

Set includes 10 activities and supplies to make a mesh stress ball

and hurdle technique

Philip Harris Ticker Tape Timer (NBO) 12 x Airfoam flyersFor the measurement of velocity and acceleration, using timing marks made on a moving paper tape by a vibrating striker. Designed to operate on a 12V a. c. supply and uses the mains frequency as its timing standard. The unit is housed in a moulded case L115 x W60 x H70mm, including mounting flanges. The top of the case carries a tape guide with carbon paper disc support and adjustable anvil for the striker point. All moving parts are fully enclosed