Monday, February 14, 2011

Fascination with Invisible Worlds

By Karlyn Caplan


My parents always encouraged me to be whatever I wanted to be, so when I expressed my desire for a microscope when I was eight years old, they encouraged my 'inner child scientist. I received my microscope that Christmas. I was holding it like forever. I found myself in the world of the unseen, thinking that soon I could become a Nobel Peace Prize recipient for various scientific discoveries of new forms of life, new medicines, or anything that can benefit humankind.

My microscope became my eyes to another world, everything that I grabbed, I placed under its tiny scope. Somewhat different, that winter produced various snowflakes. Ones that I've never seen before and I fell in love with its splendor. Each snowflake was a beauty in its own intricate artwork, like a marvelous present handed from above.

The development of microscope, as light goes through its pattern of lenses, enabled us to see even the tiniest speck which can't be done by merely looking at it. A revelation of magnifiers, burning glasses (holding them against the sunlight would set fire on the piece of parchment or cloth underneath it), and magnifying glasses existing in 100 A.D. was seen in the writings of Seneca, Pliny the Elder, and Roman philosophers. Formed like a lentil seed, these parts of magnifying glasses were termed as lenses.

The original microscope was made up of a small pipe with a lens attached to an end and a plate on the other end. The lens amplifies ten times the size of the object that is placed on the plate. They used to call it flea glasses as well because of their curiosity on examining fleas and other insects with it.

Zaccharias Janssen and his son Hans conducted a study in 1590 on the levels of amplification with the use of numerous lenses in a tube. They found out that the object's image can be blown up. In the years that succeeded, the device continues to upgrade as more scientists pitch in what they've learned and applied. Galileo's development on the theory on lenses in 1609 gave way to a device that allows you to focus on the object under examination.But, it is Anton Van Leeuwenhoek of Holland that is considered the father of microscopy. He used a magnifying glass to conduct thread counts on fabric when he took a job as a novice in the dry goods store.He learned how to grind and polish little lenses to great curvature up to 270 diameters of magnification.He began to build microscopes and eventually made biological discoveries that made him famous.He is credited as the first to see bacteria, yeast plants, the life living in droplets of water, and the circulation of blood in the capillaries. To have done that was a very great accomplishment. In the following years that came, there were insignificant improvements. However, by the 19th century, an American scientist by the name of Charles A. Spencer was able to manufacture the best lenses that can amplify the object's appearance of up to 1250 diameters if used with natural light and 5000 diameters if used with blue light.

There are all sizes and shapes of microscopes - one to suit and encourage your little one to explore different worlds, and those for industrial, scientific and medical use.No matter the size, it is surely to fascinate.




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