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Christina T. Loguidice

Articles by Christina T. Loguidice

The Ancient Indians were the fi rst to use pens around 5000 BCE. While these writing implements were primitive, typically consisting of hollowed out reeds that could hold a small amount of ink, which was generally soot in water with a plant gum binder, they were used for thousands of years and are still used today in certain parts of Pakistan.

Radiation therapy has been used to treat cancer for more than 100 years, and was made possible by the discovery of X-rays in 1895 by German physicist Wilhelm Conrad Röntgen, which allowed tumors to be detected more easily and noninvasively.