"Mendeleev began arranging the elements and comparing them by their atomic weights." Here is an extremally long article about the Periodic Table: Periodic table - Wikipedia It fascinated me at school and it still fills me with wonder. I found this interactive table which explains information about an element when you click on its' symbol. It works on line. It's Elemental - The Periodic Table of Elements I downloaded it as a PDF file and it still works. But when I tried to download it again I could not. Take care, John
Olla
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There is a memorial for old Trevor this afternoon in the memorial Hall. It
would have been his 100th birthday. His family has organised the event
I will...
30 minutes ago