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iPhone THE MISSING MANUAL - Cdn.oreilly.com

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While the digits are flying by, you can tap Lap as often as you like. Each time,<br />

the list in the bottom part of the screen identifies how much time had elapsed<br />

at the moment you hit Lap. It’s a way for you to <strong>com</strong>pare, for example, how<br />

much time a runner is spending on each lap around a track.<br />

on most stopwatches, of course, the grand total time keeps ticking away in the<br />

main display. The fact that the <strong>iPhone</strong>’s main counter resets to zero each time you<br />

tap Lap appears to be a bug in the 1.0 software.<br />

You can do other things on the <strong>iPhone</strong> while the stopwatch is counting, by<br />

the way. In fact, the timer keeps ticking away even when the <strong>iPhone</strong> is asleep!<br />

As a result, you can time long-term events, like how long it takes an ice sculpture<br />

to melt, the time it takes for a bean seed to sprout, or the length of a<br />

Michael Bay movie.<br />

Tap Stop to freeze the counter; tap Start to resume the timing. If you tap Reset,<br />

you reset the counter to zero and erase all the lap times.<br />

Timer<br />

The fourth Clock mini-app is a countdown timer. You input a starting time,<br />

and it counts down to zero.<br />

Maps and apps 191

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