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Camera Obscura

Perhaps, it's a little weird for me to begin an article with a glimpse to a romantic movie, but I can't think of a cooler way to start today's topic. When I came up with the idea to write about "Camera Obscura", the first thought that came to my mind was a movie from 1997, called "Addicted to Love". Of all the movies in this genre only a few are on the top of my mind and this one, directed by Griffin Dunne with Matthew Broderick and Meg Ryan in lead roles is definitely the best one I remember. In short, Sam, an astronomer who, in an attempt to win back his girlfriend, turns his astronomical tools into specific spy equipment and by using his dark-chambered pinhole camera manages to observe what is happening in the building across the street in the real time. What he used to achieve this is a principle behind Camera Obscura - a method to project the light through a small hole and create an image on the opposite wall inside a dark room, tent, or box. Someth

What Jupiter and Mercury Have in Common?

Before we jump into premature conclusion with easy answers as 'nothing at all' or 'at least they are both orbiting the Sun' perhaps we could do some quick research for just in case... With equatorial radius of Jupiter almost thirty times bigger than the same property on Mercury, obvious composition difference between one gas giant and small rocky planet and all the other major difference in mass, density, temperature, orbital inclination, orbit period and with almost everything we could compare the two, it is very hard to find the slightest similarity. Not to say that Jupiter in its arsenal is in possession of moons equal or even bigger in size than the smallest planet of our Solar system. However within past couple of seasons, what they had in common was the fact that they were under the spotlight of all of us who from time to time enjoy gazing the sky with naked eyes or through modest telescopes with strong feeling of being the witnesses of our own Solar system