Tag: Particles

Imagine that Alice is piloting a space ship light years away from Earth. Bob steers his space ship in the opposite direction, also light years away. Back on Earth, scientists prepare in a lab two particles from a single reaction, such as the decay of a pion. These particles are sent out into spac...

Ordinary Raman spectroscopy could be used to detect bacteria, in principle. In practise the concentrations of the associated molecules are so low, the signals overshadowed by other effects. This is where SERS and the nano particles come in. When struck with light of certain frequencies, nanoparti...