A few days ago while surfing the web I found one site where pedometers (a device for counting steps, miles, meters, time, etc) were discussed, mainly All-In Fitness Pedometer in iPhones and iPods. I understood the principle of its work but what I was interested in was the history of this invention.
Originally the pedometer was invented by Thomas Jefferson (the author of the Declaration of Independence) about two centuries ago. He took the device from France and made some improvements to the design.
Of course, during the course of time the technology has changed but the main functions have remained similar. A special sensor is responsible for counting the number of steps by counting the number of your body shakes.
Now you can combine trainings with listening to your favorite music as iPhone can perform the function of an MP3 player.And if you don't want to invest you money in pedometer business you can just order you #1 pedometer for iPhone directly from Apple Store.
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