the beautiful burning falling stars

Errrrrr boom pow ohhh la la the night sky lights up for 3 seconds. Burning fireballs of red green and orange. Sparks fall and completely disappear before your eyes. The day of celebration is upon us the great 4th of July. America’s most celebrated events every year. The Independence from England. Each state in America has there own special way of celebrating Independence Day. Each ends with the most anticipated moment, the fireworks.

The fireworks you see during the 4th are remote controlled detonators that set off a spark in the wick of the firework. The firework is airborne like a rocket to explode that burst from its shell into the sky. This sets off a chemical reaction made up of different colors of gun powders blended together into flammable balls. The flammable balls than explode in star shapes of many different colors that everyone enjoy every year on the Independence Day.

Why do we here the explosion before we see it???
Light reaches our eyes before sound reaches our ears because light travels faster than sound. Light travels at the rate of 186,282 miles per second, while sound is much slower, 1,087 feet, or about 1/5 of a mile, per second.

The biggest reported firework in the history of firework lies in Japan weighing in at The 1,543 pounds, 54.7 inches in diameter and burst to a diameter of 3,937 feet. Ladies and gentleman the big boom from doom .the boom boom pow from the Hokkaido Japan the one and only Universe I.
fireworksCourtesy jack duke

Your Comments, Thoughts, Questions, Ideas

JGordon's picture
JGordon says:

Interesting post.

I was thinking, though, that if you wanted to get sciencey (and this is a science blog after all, so you do want to get sciencey) you could tell us a little bit more about how fireworks work. There's a ton of chemistry happening up there. Maybe you could get into it more. What makes the different colors? That is, why do different chemicals burn in different colors? And I thought I heard recently about some environmental concerns over fireworks propellants—do you know anything about that? Let's have it!

posted on Fri, 07/10/2009 - 10:00am

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