Now they have turned their attention to microalgae. Their aim was to functionalize the surface of the unicellular organisms ...

"Among various materials, helimagnets are particularly interesting because they exhibit chirality through their magnetic structure ... flows more easily in one direction than the other.

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

One end points towards magnetic north and the other end points south. You can use a compass to check which direction each end is facing. The Sun is in the South at about midday, so you can also ...