Read article: New optical timekeeper is 10 times more reliable than caesium atomic clocks
New optical timekeeper is 10 times more reliable than caesium atomic clocks
Silicon cavity replaces hydrogen maser to boost performance
Read article: New optical timekeeper is 10 times more reliable than caesium atomic clocks
Read article: Entangled aluminium ion is world’s best timekeeper
Entangled aluminium ion is world’s best timekeeper
Quantum-logic clock knocks lattice device off top spot
Read article: Tiny optical clock is 100 times better than previous chip-based timekeepers
Tiny optical clock is 100 times better than previous chip-based timekeepers
New device fits onto three computer chips
Read article: Improving the world’s most accurate clocks and connecting to the Internet via lights
Improving the world’s most accurate clocks and connecting to the Internet via lights
Physics World journalists discuss atomic clock research and the rise of LiFi
Read article: Measurement standards on a chip, Roman invisibility cloaks, and a ‘brain decoder’
Measurement standards on a chip, Roman invisibility cloaks, and a ‘brain decoder’
Researchers from NIST join journalists for the Physics World Weekly podcast
Read article: Metrology marathon at NIST
Metrology marathon at NIST
Hamish Johnston visited the metrology lab to discover the latest innovations in quantum sensors, atomic clocks and much more
Read article: Across the snowfields to NIST
Across the snowfields to NIST
Snow cyclone strikes Colorado
Read article: Shedding light on XHV-capable materials
Shedding light on XHV-capable materials
A collaboration between industry and the US national measurement laboratory is quantifying the comparative performance of extreme-high-vacuum technologies
Read article: Redefining the kilogram
Redefining the kilogram
Why scientists have changed the way we define mass
Read article: It’s all smoots and garns
It’s all smoots and garns
From a human ruler to a space-sickness scale, Stephen Ornes looks at how some of the oddest and most surreal units came to exist
