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Daily Archives: February 14, 2015
The Scale of Atoms and Modern Processors
Everyone knows that atoms are small, but exactly how small is small? This new video by Kurz Gesagt explores this question, and the sheer scale is mind boggling to try to imagine. Among the analogies used is that of filling rooms with rice grains; if the end of your finger was the size of the room, and […] Continue reading
Posted in Physics, Science
Tagged astro201, atoms, blog3, computers, processors, transistors
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Was Life on Earth Planted by Aliens?!?!
Scientists in the United Kingdom have discovered something astonishing: a tiny, metal globular object the width of a human hair captured by a team of researchers using a high-flying balloon in Earth’s stratosphere. According to University of Buckingham’s astrobiologist Milton Wainwright, the globular object “has filamentous life on the outside and a gooey biological material […] Continue reading
The Great Filter
When you think of the size of the universe, there must be life elsewhere. There are 100 – 400 billion stars just in our galaxy, and just as many galaxies in the universe. If we estimate that 5% of all stars are sun-like, which is on the low side. There should be 500 quintillion sun-like […] Continue reading
ESA’s Rosetta Mission
The European Space Agency’s (ESA) Rosetta mission is probably fresh in a lot of your minds as it came to fruition in November of last year. For those unaware, the Rosetta space probe is the first probe to orbit a comet – the Churyumov-Gerasimenko. The probe also came equipped with a lander, which touched down shortly […] Continue reading
The Early Telescopes
The earliest working telescopes was made around 1608 with many who claimed its discovery. The design was simple; a convex objective lens and a concave eyepiece allowed the user to see further. In 1655, astronomers had build more powerful telescopes using a design by Kepler. This design used a convex objective lens and a convex […] Continue reading
Posted in Class, Instruments
Tagged astro201, blog3, telescopes
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A Smiley Face in Space :)
A picture taken by Hubble shows what appears to be a face complete with two eyes, a nose, and a smile. The two eyes are actually galaxies while the smile is made up of curving light that forms a partial circle around the figure. However, the smile doesn’t exist. There is lots of immeasurable and […] Continue reading