The imperfection of strontium titanate
When you squeeze some crystals, you distort their lattice of atoms just enough to separate a pair of charged particles and that in turn gives rise to a voltage. Such materials are called piezoelectric…
polarization
3 posts
The magnetic sky
On May 6, the team behind the now-inoperative Planck space telescope released a map of the magnetic field pervading the Milky Way galaxy. Titled 'Milky Way's Magnetic Fingerprint', the ma…
The Big Bang did bang
The Hindu March 19, 2014 On March 17, the most important day for cosmology in over a decade, the Harvard-Smithsonian Centre for Astrophysics made an announcement that swept even physicists off their…