August 22, 2008

40 Years Of Glowsticks

The glowstick was invented over 40 years ago by Edwin Chandross, a chemist at Bell Labs. Glowsticks use chemical energy to product light. At the time it was quite a remarkable achievement because either electrical mains or battery were the energy sources for most light producing devices.

Many scientists took Chandross' work and refined the process further. Unfortunately for Chandross, the patent for Chemical Light Device was registered by Richard Taylor Van Zandt in the US Patents office.

Glow sticks can be used just once and come in different sizes in translucent plastic tubes. The chemicals contained within are glow stick are isolated in a brittle inner case, which when broken allows the chemicals to combine and produce light through a chemical reaction known as chemoluminescence.

Today, glow sticks are used the world over as a source of light and millions of people all over the world use these colorful sticks. It is believed that nearly 15 million glow sticks are used by the United States Department of Defense each year.

Some of varied uses of glowsticks are:

-A dance form known as glow sticking is extremely popular in present day. Glow sticks are used for entertainment in parties, concerts, and dance clubs. This is one of the most widely acknowledged uses of glow sticks in pop culture.

-In Hong Kong, one can see the use of glow sticks during the Mid Autumn Festival. In the US and other countries where Halloween is celebrated, you will find all the kids out on Trick or Treat using glow sticks. Here it has a dual purpose — it warns oncoming vehicles that children are up and about, and parents use the light of the stick to keep sight of their children.

-Besides all this fun, glow sticks have an extremely practical use. They are waterproof and can withstand high pressure. In addition, they are disposable and inexpensive. That is why divers, campers and military use these sticks as a source of light and as markers.

-They are also used in emergency situations. Even when there are explosives, gas or chemical leaks the sticks can be used as they do not use electrical filaments, batteries and do not cause sparks to ignite the dangerous substances.

Glowsticks saw a huge surge in popularity in the 1980s, but even today they are just as popular. In order to get the best bang for your buck, it is advisable to get a stick that lasts. Cheap glow sticks fade out rather quickly. The better the quality the stick, the longer and stronger it will last. Good quality glow sticks will usually last for 12 to 24 hours.