California Institute of Technology

Einstein's archive now available online

(PhysOrg.com) -- If you ever wanted to glimpse into Albert Einstein's thoughts, now you can. Last week, the complete catalog of about 80,000 documents written by or addressed to Einstein—letters, postcards, ...

Mar 29, 2012
4.5 / 5 (6) 7

Ironing out the details of the Earth's core

(PhysOrg.com) -- Identifying the composition of the earth's core is key to understanding how our planet formed and the current behavior of its interior. While it has been known for many years that iron is ...

Dec 20, 2011
4.9 / 5 (11) 7 | with audio podcast