Uncategorized
- Physics
Ring around the proton
An orbiting electron accelerated to relativistic velocities by a laser in a strong magnetic field can behave like a ring-shaped electron cloud spinning around the nucleus.
- Physics
Writing with warm atoms
Researchers demonstrated that they can use a scanning tunneling microscope to position atoms in microscopic patterns at room temperature.
- Archaeology
Ancient origins of fire use
Human ancestors may have learned to control fire 1.7 million years ago in eastern Africa.
- Archaeology
Guard dogs and horse riders
More than 5,000 years ago, the Botai people of central Asia had ritual practices that appeared in many later cultures.
