Daily Archives: February 12, 2014

GPS

Posted on February 12, 2014 by philipapelles

GPS, or global positioning system, is the most commonly used celestial navigation source in today’s society, which I also use on a regular basis. From giving me directions when I am driving to telling me my exact location, GPS has become vital in most people’s daily lives. The global positioning system was originally designed for… Continue reading →

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A New Generation of US Spaceflight

Posted on February 12, 2014 by jblubin

A new era of spaceflight is underway in America. The Space Shuttle program was retired in 2011 and ever since, if NASA wants to send an astronaut so space, they must buy a ticket on the Russian Soyuz rocket. But this status quo of depending on another nation to carpool to space is about to … Continue reading A New Generation of US Spaceflight → Continue reading →

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Eratosthenes Measures the Earth

Posted on February 12, 2014 by jblubin

How do you measure the circumference of the Earth? It’s not like you can take out a meter stick and lay it end to end hundreds of thousands of times. Today with satellite technology and GPS we can easily complete this task and get an extremely precise answer: 40,075.017 kilometers. But how might a Greek … Continue reading Eratosthenes Measures the Earth → Continue reading →

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