hearing

We always enjoy home science experiments and it was fun the other night to learn about a new experiment we could try with our teenage daughter and an iPhone. As it turned out, the joke was on us. My husband is an enthusiastic fan of the iPhone store. Last night, he downloaded this application called "Army Knife." This application has, I kid you not, the following nine items:
  • unit converter - these are always helpful, especially if you travel
  • ultrasonic whistle
  • protractor
  • Heart (beats per minute) counter
  • measuring tape
  • ... Read more

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