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A map of the globe showing the distribution of earthquakes detected and alerted during the study. Most of South America is covered by the network, as are the US, Australia, and a broad swathe running from southern Europe and northern Africa through the Middle East and into India and south-east Asia. Yellow and occasionally red blobs appear in earthquake-prone areas within this band. There are also grey blobs, indicating detections with no alert, in Mexico, eastern China, Japan and parts of Indonesia.

Android phone network makes an effective early warning system for earthquakes

New laser-plasma accelerator could soon deliver X-ray pulses

New design is more efficient at driving electrons

Scientists image excitons in carbon nanotubes for the first time

New ultrafast optical microscope could aid the development of advanced optoelectronic devices and quantum technologies based on these nanomaterials

Spin-qubit control circuit stays cool

Cryogenic architecture supports tighter integration

Research headlines

Artist's representation of a quantum clock, shown as a traditional clock dial at the centre of a circle of wavepackets. A beam of light from the clock to one of the wavepackets represents measurement

How to keep the second law of thermodynamics from limiting clock precision

Certain types of quantum clocks could circumvent thermal dissipation, say physicists

A rainbow of colours exiting a circular object

Acoustic rainbows emerge from novel sound-scattering structure

New architecture could be used to create tailored devices that emit or receive only certain frequencies of sound

A diagram of the new telescope-microscope next to images of live cells imaged using fluorescence and bioluminescence. Objects in the fluorescence image are indistinct and blurred and overlaid with a sheen of green. Objects in the bioluminescence image show up sharply in blue against a black background.

New ‘telescope-microscope’ detects extremely low levels of light

Quantum image sensor-based device could be used to observe living cells

A photo of Joseph Carroll standing in a laboratory next to a large machine with many cables, pipes and valves running into it. He's wearing a white shirt and black jeans, and the walls of the lab are covered in white acoustic insulation material

New microscopy technique can identify topological superconductors

Scanning-tunnelling microscope with a superconducting tip could help uncover materials for next-generation quantum computers

New definition of second ticks closer after international optical-clock comparison

Fibre and satellites connections span two continents

Micronozzle could give laser-driven particle accelerators a boost

Simulations suggest that new design could deliver gigaelectronvolt protons

Instrumentation & Vacuum Briefing

Take a look inside our latest free-to-read Instrumentation and Vacuum Briefing. Covering the latest research updates, features and products, this issue highlights the role that “behind-the-scenes” technologies play in solving problems both in the lab and in the wider world outside it.

Explore more in instrumentation and measurement

New optical cryostat combines high cooling capacity, low vibrations and large sample area

Pulse-tube cryocooler and innovative design deliver shorter cooling times and larger experimental payloads

Development and application of a 3-electrode setup for the operando detection of side reactions in Li-Ion batteries

Available to watch now: Discover an easy to implement cell setup that enables the quantitative and qualitative analysis of parasitic side reactions in lithium-ion batteries

Tiny laser delivers high-quality, narrowband light for metrology

Laser diode device enables rapid measurement

A series of images showing droplets of orange liquid separating and splitting on a grey background

Sound waves control droplet movement in microfluidic processor

Device could be transformative in biology, chemistry and lab-on-a-chip applications

Six people stand side-by-side in a laboratory in front of a large device that resembles a 5-foot-tall refrigerator with microscope equipment inside the top drawer

Laboratory-scale three-dimensional X-ray diffraction makes its debut

New device could make the technology accessible outside national and international synchrotron facilities

Shengxi Huang: how defects can boost 2D materials as single-photon emitters

Shengxi Huang explains why Picoquant’s instruments are helping her to develop 2D materials that are highly efficient sources of single photons

Photo of a metre-long measure made from marble and embedded in the stone wall of a building in Paris. A small plaque to the left of the metre is inscribed with the words "Metre Etalon" and describes its history in French.

The evolution of the metre: How a product of the French Revolution became a mainstay of worldwide scientific collaboration

Physics World corresponding editor Isabelle Dumé reports from a Paris symposium celebrating the 150th anniversary of the Metre Convention

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Instrumentation and measurement | Conference 14th International Beam Instrumentation Conference 7—11 September 2025 | Liverpool, UK
Quantum | Meeting Korrelationstage 2025 15—19 September 2025 | Dresden, Germany
Instrumentation and measurement | Workshop 30th International Workshop on “Single Molecule Spectroscopy and Super-resolution Microscopy” 23—26 September 2025 | Berlin, Germany

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