Neil deGrasse is definitely one of my heroes, and the simplicity through which he manages to explain even the most complicated things is absolutely amazing. After the symphony of science, here’s him in a short video talking about what is perhaps the most important equation to date.
In case you’re wondering, the biggest ‘guitar’ in our galaxy is in fact a pulsar that was nicknamed The Guitar Pulsar. It’s basically a stellar corpse that emits a beam of electromagnetic radiation that just shreds interstellar gas, creating a wake of hot hydrogen shaped just like a guitar.
Little is known about these remnants, from [...]
Ram pressure is the pressure exerted on a body when it passes through a fluid medium; this causes a drag force that is exerted on the body. The same pressure appears when a galaxy is moving through an intergalactic gas, and in this case, the ram pressure can sweep a significant part of the intergalactic [...]
Monday, January 11, 2010
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