The research aims to produce valid information and must use reliable instruments that guarantee accurate and make it quantifiable and possible reproducibility. Allowing the exclusion or at least control prejudice of personal insights and trends that may distort the results.
jueves, 20 de enero de 2011
Star Clock BC
Move over, Bill Gates. It appears that the world's first PC was invented during biblical times. It was a device so sophisticated that with a turn of a hand crank, mathematical gears mapped the positions of planets and stars. Now, more than 100 years since the discovery, experts are still vying to understand how such an advanced technology could have existed 2,000 years ago.
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