Tomographic measurement of dielectric tensors
A research team reported the direct measurement of dielectric tensors of anisotropic structures including the spatial variations of principal refractive indices and directors. The group also demonstrated quantitative tomographic measurements of vario.....»»
Estimating coastal water depth from space via satellite-derived bathymetry
Since ancient times, knowing the depth of coastal waters has been key to safe and successful navigation and to exploit the sea's resources. Today, bathymetry—the measurement of sea depth—is even more important, playing essential roles in our unde.....»»
Eyes on the impossible: First near-field, subwavelength thermal radiation measurement
Nanodevices change the way we diagnose disease, process food and water, and store renewable energy. But to keep up with next-generation technology, researchers need to understand the fundamental principles that prompt their functionality......»»
Polarization-sensitive tomography made easy with tensorial tomographic Fourier ptychography
In the realm of medical imaging, there are quite a few different techniques to extract information from biological tissue based on its different interactions with visible light. Over the past decade, there has been a massive surge in research focusin.....»»
Jailbreaking an iPhone re-enables blood oxygen measurement on Apple Watch; August 2028 expiry
An interesting look behind the scenes of the court battle between Apple and health tech company Masimo reveals that jailbreaking an iPhone re-enables blood oxygen measurement on an Apple Watch. The same report notes that even if Apple doesn’t su.....»»
AI making waves in marine data collection
Numerous measurement stations around the world provide us with data about air quality, allowing us to enhance it. Although we are increasingly collecting data from marine areas, access to such data is considerably more challenging. Signals are poorly.....»»
Study: Conflicting values for Hubble Constant not due to measurement error
Something else is influencing the expansion rate of the Universe. Enlarge / This image of NGC 5468, about 130 million light-years from Earth, combines data from the Hubble and Webb space telescopes. (credit: NASA/ESA/CSA/STScI/A.....»»
Study: Conflicting values for Hubble constant not due to measurement error
Something else is influencing the expansion rate of the Universe. Enlarge / This image of NGC 5468, about 130 million light-years from Earth, combines data from the Hubble and Webb space telescopes. (credit: NASA/ESA/CSA/STScI/A.....»»
New technique developed for measurement of temperature distribution inside single catalyst particle
Chemical reactions are usually accompanied by thermal effects, inevitably resulting in temperature changes in the reaction system. Therefore, temperature is an important parameter in reactions, which can affect chemical thermodynamics and reaction ki.....»»
Researchers develop a more precise carbon footprint measurement method
Bayreuth researchers want to calculate the carbon footprint of companies more accurately in the future. The term "carbon footprint" refers to the recording of climate-impacting greenhouse gases and the compilation of these in a greenhouse gas balance.....»»
Trapping and excitation of the simplest molecule: Precise measurement matches theoretical predictions
The simplest possible molecule H2+ was one of the very first molecules to form in the cosmos. This makes it significant for astrophysics, but also an important object of research for fundamental physics. However, it is difficult to study in experimen.....»»
New measurement captures clearer picture of our galaxy and beyond
With unique capabilities to track microwave energy fluctuations, a small observatory in the Andes mountains of northern Chile produced maps of 75% of the sky as part of an effort to measure the universe's origin and evolution more accurately......»»
14 parameters in one go: New instrument for optoelectronics
An HZB physicist has developed a new method for the comprehensive characterization of semiconductors in a single measurement. The "Constant Light-Induced Magneto-Transport (CLIMAT)" is based on the Hall effect and allows the recording of 14 different.....»»
Apple Watch sweat measurement described in new patent application
A newly-published patent application describes a method for Apple Watch sweat measurement, which could provide useful data to athletes, as well as guiding fluid intake after exercise. The patent describes how perspiration measurement could be auto.....»»
Greenland Climate Network measurement series reprocessed
For 30 years, researchers operated a network of weather stations on Greenland in harsh conditions. The dataset from this highly relevant climate research has now been reprocessed and published in an article in Earth System Science Data. The publicati.....»»
Study reveals significant discrepancies in common poverty measurement approaches
Methods commonly used to measure poverty can lead to vastly different conclusions about who actually lives in poverty, according to a new Stanford University-led study. Based on household surveys in sub-Saharan Africa, the first-of-its-kind analysis,.....»»
A method to fabricate long rolls of subnanocomposite dielectric polymers
Engineers and material scientists have been trying to develop increasingly advanced devices, to meet the growing needs of the electronics industry. These devices include electrostatic capacitors, devices that can store electrical energy in a dielectr.....»»
Bessel-beam-based side-view measurement of seven-core fiber internal core distribution
Optical fiber, as the basic carrier of modern high-speed and high-capacity communication, is the key to the interconnection of the world. With the rapid development of the communications industry in recent decades, ordinary single-mode optical fiber.....»»
Best smart scales for Apple Health
Whether you’re working out with Apple Watch or just trying to live healthier, smart scales that sync data to the iPhone can be a fun and useful way to track your progress. If you want to easily collect your weight and other measurement data in t.....»»
New tomographic reconstruction algorithm sets world record
Advanced synchrotron tomography is a critical research tool, allowing scientists to explore the intricate structures of objects in extremely high resolution. Because this technique enables researchers to capture dynamics in real-time, it can capture.....»»
Higher measurement accuracy opens new window to the quantum world
A team at HZB has developed a new measurement method that, for the first time, accurately detects tiny temperature differences in the range of 100 microKelvin in the thermal Hall effect. Previously, these temperature differences could not be measured.....»»