Helen Battles Sawyer Hogg, CC (1 August 1905 – 28 January 1993) was an astronomer noted for pioneering research into globular clusters and variable stars. She was the first female president of

The Adventures Of Chelle
Helen Battles Sawyer Hogg, CC (1 August 1905 – 28 January 1993) was an astronomer noted for pioneering research into globular clusters and variable stars. She was the first female president of
Dorothy Hodgkin (1910-1994) was a British chemist who developed protein crystallography. She won a Nobel Prize in Chemistry in 1964 for her work in the
One of my favorite pastimes is tracing the history of my ancestors. In recent years I did the DNA test kit through the ancestry website
This week Stephen Hawking will celebrate his 75th birthday. Hawking is an English theoretical physicist, cosmologist, author and Director of Research at the Centre for