Silicon joins race to redefine the kilogram
A new measurement of the Avogadro constant could allow the unit of mass to be defined in terms of atomic and fundamental constants
Read article: Bose-Einstein condensates break temperature record
Bose-Einstein condensates break temperature record
Physicists have cooled a gas of sodium atoms down to less than a nanokelvin
Super-cool thermometer relies on noise
Researchers have made a new type of thermometer to measure low temperatures
Semiconductor laser makes broadband debut
Applications abound across the spectrum for ‘quantum cascade’ technique
Atomic clocks speed up
The most successful applications of atomic clocks include the global positioning system (GPS) of satellites for navigation, and also the international basis of timekeeping, known as the coordinated un...
Read article: Interference makes super-sensitive ruler
Interference makes super-sensitive ruler
An optical-fibre interferometer could be a thousand times better than existing devices
Clock-watching since the start of time
If you want to learn about atomic clocks or the sophisticated construction of an atomic timescale, then Jo Ellen Barnett’s book is not the right place. However, if you are fascinated about disco...
