HMD for Swimmers

nym | 07:02 AM
"When you're swimming, remembering how many lengths you've swum can be hard. I know that when I used to swim, I would trick myself into thinking I'd done 25 laps when maybe I'd only done 20," she says.

Williams' system incorporates an electronic device, which houses a compass, at the back of the headstrap on the goggles.

When the swimmer turns, the compass detects that the co-ordinates have changed and registers the time.

The information, including the total time spent swimming, the number of laps completed and the speed traveled are shown in a tiny heads-up display inside the goggle lens, using a system that reflects information off tiny mirrors. [CNN]

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