Re-entry into Earth’s atmosphere

In the last couple of days, I have been doing a bit of research on re-entry into the Earth’s atmosphere. Meteorites burn up when they fall into the Earth’s atmosphere, this basically has to do with the sheer size of the meteorite and kinetic energy, you know, because the large meteorite is going incredibly fast. So when a meteorite enters the Earth’s atmosphere, most of the heat is due to the air that the meteorite runs into. In a sense,...

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3-D Printing

A couple of nights ago I was catching up a bit on some recorded Big Bang Theory episodes when it came up again, 3-D printing. Howard and Raj made action figures of themselves with a 3D printer, which they got for $5,000. Then I started thinking, it seems I am hearing more and more about 3-D printing everyday. I haven’t seen it yet in person, but, it looks as if this is something that isn’t going away, so I figured...

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