Scientists have unearthed a 600-year-old Chinese coin on the Kenyan island of Manda that shows trade existed between China and east Africa decades before European explorers set sail and changed the map of the world.
"This is the kind of story that just boggles my mind. IBM just released a Guinness World Record-setting movie called “A Boy and His Atom,” made by moving atoms using an IBM-invented scanning tunneling microscope. It weighs two tons, operates at a temperature of negative 268 degrees Celsius and magnifies the atomic surface over 100 million times. IBM researchers used the microscope to control a super-sharp needle along a copper surface to “feel” atoms. Only 1 nanometer away from the surface, which is a billionth of a meter in distance, the needle can physically attract atoms and molecules on the surface and thus pull them to a precisely specified location on the surface. The moving atom makes a unique sound that is critical feedback in determining how many positions it’s actually moved."
Earlier this week we reported on the remarkable news that a Mississippi-born baby was cured of HIV. Now, as if to show the disease that its days are truly numbered, researchers from Washington University School of Medicine in St.