Advertisement
Advertisement

Topic

came

Politics

Spain rail crash came after train ordered to go in error: minister

A rail collision in Spain that claimed at least 68 lives on Wednesday came after a train was ordered to go in "error" despite a technical failure that halted all services, the transport minister said. The first findings about the accident in the central region of Castilla-La Mancha are likely to revive questions about rail safety in Spain after another high-speed collision in January killed 46 people. FRANCE 24's James Vasina reports.

Science

A quantum prediction from 1931 just came to life

Nearly a century after physicist Hans Bethe predicted them, scientists have created and directly observed unusual quantum states known as “Bethe strings” in an ultracold gas. By cooling cesium atoms to near absolute zero and trapping them in thousands of tiny one-dimensional tubes, researchers were able to make groups of atoms bind together without ordinary chemical bonds. These strange clusters could contain six or more particles and even collide with one another without falling apart.

Advertisement