Business

GPS – a Short History

At the beginning of the 20th century surveyors used ropes and chains to measure distances. These, of course, lacked accuracy. In the 1950s Dr. Trevor Lloyd Wadley’s invented the Tellurometer, which used two microwave transceivers to measure long distances accurately....

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The Best Carpet Cleaning Product in Allentown, PA

There are many reasons you should clean your carpet on a regular basis. Your carpet is going to be something of a repository of all of the different elements that have built up in your house over time. When you walk on your carpet, you are going to transfer dirt from...

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