Tuesday, March 12, 2013

Science in the movies blog.

   In the movies all you see is cool explosions and special effects,  but really your seeing tons of science happening! There's science in the special effects, pyrotechnics, and the prop's. Lets talk some more about this.

   There are tons of cool science happening in special effects, one of them is the bombs. You must first make some gunpowder, It contains 75% Potassium nitrate, 15% Charcoal, and 10% Sulfur. The sulfur and charcoal act as a fuel, while the potassium works as an oxidizer, You would then find a fuse which could be anything you could light, and there you go! Now you can make a bomb!

   Now pyrotechnics has lots of science happening, Like the fire! Fire typically comes from a chemical reaction with oxygen in the atmosphere and some kind of fuel like wood or dry leave's, but fire just doesn't magically happen just because of air, it first needs to be heated to ignition point.  It then creates volatile gasses, also known as smoke, and as the heats up the carbon atoms rise as well as the atoms of the material it creates light, which is the fire.

  Now we will talk about some of the science in props! Rocks are one thing used for almost every movie, everyone uses rocks big or small. There are three ways rocks can form, the first is when magma rises up from deep underground, it forms igneous rocks. The second way is when sedimentary and igneous rocks are changed dramatically by extreme heat or high pressure underground changes the rocks into something new, they are called metamorphic rocks. The last way is when rocky fragments and sediments are deposited by wind, water or ice, they then cement together after thousands of years and create sedimentary rocks.

   In movies cool science is always happening, and now you know some science things happening! You know about the special effects, pyrotechnics, and the props.

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