Astronomers report the rapid transition of WOH G64 from a red supergiant to a yellow hypergiant, based on photometric and spectroscopic observations published in Nature Astronomy.

Here at Hackaday, we take pride in presenting the freshest hacks and the best of what’s going on today in the world of hardware hacking. But sometimes, we stumble upon a hack from the past so ...

The Optrode, a sensor from Metrohm for titrations with optical endpoint detection, was introduced in the last issue of Metrohm Information. Application specialists at Metrohm have worked out several ...

The new applications cover a number of industries including the pharmaceutical industry, the petrochemical industry, and water analysis. The new ANs are available for free from the homepage of Metrohm ...

Photometric stereo is a well‐established technique that extracts detailed three‐dimensional information from a series of two‐dimensional images taken under varying illumination from a fixed camera ...

Fringe photometric stereo procedure (IMAGE) Optica Caption Researchers developed a faster and more accurate method for acquiring and reconstructing high-quality 3D surface measurements. The new fringe ...

ATTEMPTS have been made by Clausius and various other mathematicians to calculate the light at different points of the perfectly clear sky, and to compare the light of the whole (or a portion) of the ...

Various optical systems or geometries can be used to perform light measurements. For instance, the total power [flux] of a light source can be measured in all directions, in a specific direction or ...

A team from the Max Planck Institute for Intelligent Systems in Germany have developed a novel thumb-shaped touch sensor capable of resolving the force of a contact, as well as its direction, over the ...