This infrared gadget claims to improve your mood with lights - I got to the bottom of it

I tested a near-infrared light device that attaches to my computer, mimics the sun, and allegedly improves mood and focus. Did it work?

Could a Blood Test Predict if You’ll Get Alzheimer’s?

In the brain, Alzheimer’s is characterized by two proteins, amyloid beta and tau, that become dysfunctional, forming plaques ...

TCL’s German QLED ban puts pressure on TV brands to be more honest about QDs

Germany recently banned TCL from marketing some of its TVs as QLED (quantum dot light-emitting diode), with a Munich court ruling that the TVs lack the quantum dot (QD) structure and performance ...
Circuit Digest

Build a Simple Optocoupler Tester Circuit for Fault Detection

Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials and step-by-step build ...
IEEE

kV-Class Vertical GaN PiN Diode Under Proton Irradiation: Impact on Conductivity Modulation

Abstract: This work investigates the proton irradiation effect on a kV-class vertical GaN-on-GaN PiN diode under 10-MeV and 50-MeV proton irradiation with fluence up to $1\times 10^{{14}}$ cm−2. After ...
Medscape

Galleri Cancer Detection Test Fails in Key Trial: Now What?

Multicancer blood tests have for years been hyped as a potential breakthrough in early cancer detection. But with news that one of the big names in the field, the Galleri test, failed to meet its ...