Luckily, science has had some help ... zircons were known to be some of the oldest materials on Earth, though finding any older than 4.3 billion years old is extremely rare, making the Jack ...

You might also want to see our STEMclickers resource page, part of the Carl Wieman Science Education Initiatives efforst ... We are believers in the "open-source" model of educational materials - use ...

It is worth reminding ourselves of the basics of materials science. For structural purposes, there are three material properties that really matter: stiffness, strength and toughness. Stiffness is ...