<div dir="ltr"><div>Calcular la trajectòria del meteorit rus <a href="http://ogleearth.com/2013/02/reconstructing-the-chelyabinsk-meteors-path-with-google-earth-youtube-and-high-school-math/">http://ogleearth.com/2013/02/reconstructing-the-chelyabinsk-meteors-path-with-google-earth-youtube-and-high-school-math/</a><br>
<br></div>Raf<br></div>