By boosting the ability to detect superweak magnetic fields, a new DARPA program could open pathways to sensors with uses ranging from biological imaging to magnetically based navigation.
A remarkable technological milestone has been achieved as information can now be encoded in single atoms. Each bit, represented by a 1 or a 0 (binary logic) was successfully encoded using the orientation of an atom’s magnetic field — its spin polarity.
Fusion plasma research has been focused on improvements in sustaining a nuclear fusion reaction. Currently this is done by confining the hot plasma with a magnetic field in the shape of a donut – the tokamak – and with an added twist – the stellarator.
Physicists have modeled superfluid helium with computer simulations and found that it’s entropic properties are the same as those of black holes. Entropy is a measure of the information of a system. Black holes are maximum entropy objects. Somewhat enigmatically, thermodynamic investigations of black holes demonstrated that their entropy grows in proportion to the surface area of the event horizon, not the internal volume.
More often than not, stars come in pairs, orbiting a common centre of mass in a dynamic interdependent dance.
How do complex collective phenomena emerge from simple building blocks? From flocks of birds to complex quasicrystal structures – these systems seem to follow some kind of blue print.