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William Henry Bragg

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Sir William Henry Bragg was a famous British scientist.

Bragg plaque leeds
Bragg plaque leeds

He spent his life studying how the physical world works. He was very good at math and physics. His work helped us see things that are usually invisible. This includes looking at tiny crystals and finding objects deep under the sea. His discoveries changed how we understand science today.

Bragg plaque leeds
Bragg plaque leeds

Bragg used X-rays to study the shapes of crystals. This way of working is called X-ray crystallography. It uses X-ray diffraction, which is when X-rays bounce off a crystal in a certain way.

By looking at these patterns, scientists can see how atoms are arranged. He also helped the Navy use sound to find things. They used sonar, which is a way to listen for echoes under the water. This helped them find submarines that were hiding.

Bragg was born on 2 July 1862 in Cumberland, England. He went to school at the Grammar School in Market Harborough. Later, he studied at Trinity College, Cambridge. In 1885, he moved to Australia to work at the University of Adelaide. He was the Elder Professor of Mathematics and Physics there. He stayed in Australia for 23 years.

Market Harborough Grammar School
Market Harborough Grammar School

In 1896, Bragg showed doctors how X-rays could see inside the body. He even used an X-ray to see an old injury on his own hand. In 1915, he won the Nobel Prize in Physics. He shared this prize with his son, Lawrence Bragg. They won it for their work with X-rays and crystals. During World War I, he also worked as a scientific director at Aberdour in Scotland.

Bragg plaque leeds
Bragg plaque leeds

Many things we use today come from his ideas. When you go to the doctor for an X-ray, you are seeing his kind of science. The way ships find things in the ocean also uses his ideas. He was a leader in many science groups, like the Royal Society. He even gave famous lectures at the Royal Institution. His life shows how math and physics can solve big problems.

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File:Market Harborough Grammar School.jpg
Market Harborough Grammar School.jpg
File:Bragg plaque leeds.jpg
Bragg plaque leeds.jpg
File:X-ray spectrometer, 1912. (9660569929).jpg
X-ray spectrometer, 1912. (9660569929).jpg
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