Robert Bunsen

Robert Bunsen was a famous German chemist who lived a long and busy life.

He was born on March 30, 1811, in Göttingen, Germany. His father was a professor and a librarian at a local university. Bunsen studied many subjects like chemistry, math, and mineralogy. He even traveled through France, Germany, and Austria to meet other scientists. He was known for being a very kind gentleman in his work. He was a master teacher who was loved by all his students.

One of his most famous tools is something you might see in a science lab today. He worked with his assistant, Peter Desaga, to improve how scientists use fire. They created a special gas burner that makes a very hot and clean flame. This tool is now called the Bunsen burner. He also made the Bunsen cell battery. This battery used a carbon electrode instead of expensive platinum. These inventions helped make laboratory work much easier and more effective for everyone.

Bunsen also spent a lot of time studying light and colors. He worked with a physicist named Gustav Kirchhoff to study emission spectra. This is a way of looking at the light that elements give off when they are heated. They used a tool called a spectroscope to see these colors. This instrument was an improvement on an older tool made by Joseph von Fraunhofer. By looking at these light patterns, they could identify different elements. This work helped scientists understand what things are made of just by looking at their light.

Through this work with light, Bunsen discovered two new chemical elements. In 1860, he found a new element called caesium. He named it after the Latin word for deep blue. He found this by looking at blue lines in mineral water from Dürkheim. He had to carefully boil forty tons of that water to find 17 grams of it! In 1861, he discovered another element called rubidium using a similar way. These discoveries were very important for the world of science.

Bunsen's work touched many parts of the world we know. He studied how different substances react, like how iron oxide hydrate can help people who have been poisoned by arsenic. He also studied volcanoes during an expedition to Iceland in 1846. Even though his work was sometimes dangerous, he kept going. He retired in 1889 to focus on rocks and earth science. He died in Heidelberg, Germany, on August 16, 1899, at the age of 88.