A Key Property of Life Has Been Detected From High Altitudes

Hold up your hands in front of your face.

ScienceAlert

The #EventHorizonTelescope (#EHT) collaboration has published new results that describe for the first time how #light from the edge of the #supermassiveblackhole #M87* spirals as it escapes the black hole's intense #gravity, a signature known as #circularpolarization.

https://phys.org/news/2023-11-supermassive-black-hole-strong-magnetic.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter

A supermassive black hole's strong magnetic fields are revealed in a new light

The Event Horizon Telescope (EHT) collaboration has published new results that describe for the first time how light from the edge of the supermassive black hole M87* spirals as it escapes the black hole's intense gravity, a signature known as circular polarization. The way light's electric field prefers to rotate clockwise or counterclockwise as it travels carries information about the magnetic field and types of high-energy particles around the black hole.

Phys.org
Designing A PCB GPS Antenna From Scratch

These days, when it comes to GPS devices the antenna is typically part of the package. But what better opportunity for [Pepijn] to learn how to make a GPS antenna from scratch for a badge add-on? A…

Hackaday
Designing A PCB GPS Antenna From Scratch

These days, when it comes to GPS devices the antenna is typically part of the package. But what better opportunity for [Pepijn] to learn how to make a GPS antenna from scratch for a badge add-on? A…

Hackaday