Moseley scientist biography posters

Henry Moseley was an English churchman, mathematician, and scientist.
Purchase a poster of the photograph "Henry Moseley, English Physicist" by Science Source.
Henry Moseley was born on this day in 1887!

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Past Events

22 November 2015
Following in Harry’s Footsteps
Walking Tour
Join Dear Harry curators for an inspiring free walking tour of Oxford exploring places connected with Henry ‘Harry’ Moseley, including the Moseley family home on Banbury Road, St Giles’ Church, Trinity College, and the Department of Physics. Tour will start from the Museum and will last 90 minutes.

Saturday 21 and Sunday 22 November, 12:00 – 16:00
Shining a Light on World War One
Family-Friendly Drop In
One arts and crafts activities, hands-on activities related to battlefield communications in WW1 including telegraphy, radio communication, signals and semaphores from the Royal Signals Museum, and replica World War One uniforms and equipment. Suitable for ages 6+

Saturday 14 November, 12:00-17:00
Periodic Table of Elements Day
Family-Friendly Drop In
The periodic table brings order to information about the chemical elements and helps scientists understand the world around us. At this free event find out more about the periodic table, see hands-on excit

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Chemistry in 1913: Part 1 – Henry Moseley and atomic number

Anniversaries of chemical discoveries are celebrated every year, but the centenary of 1913 is quite special. A number of important ideas were developed during that one year that are important in the chemistry learned in school today. The first we shall explore is Henry Moseley’s work on atomic number.

How do we know how many elements there are?

What determines the order of the elements in the Periodic Table?

These were exciting questions in 1913. Fifty years had passed since Mendeleev had designed his Periodic Table. He had started with a list of the known elements in order of the atomic weights – what we now call Relative Atomic Mass. Thanks to Mendeleev’s inspired guess that there were more elements to discover, his Periodic Table had become an accepted and useful tool for chemists. New elements had indeed been discovered and the top of the table looked fairly complete. Lower down, however, amongst the rare earth metals, it was a bit of a mess.

Some people suggested that atomic weights should increase in

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Henry Moseley, English Physicist Poster Print by Science Source - Item # VARSCIBN7525

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