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NAV lighting system for RC airplanes | 555 timer IC + NAV LED lights for drones and RC planes | Arduino

Today we are going to create a strobe light for the tips of the wings of an rc airplane using a 555 timer (NE 555 or lm 555 IC) this circuit is very easy to make with few components and most ...

Tiny LED design could power next-generation technology

From 3D movie screens to augmented-reality devices, many modern technologies rely on our ability to manipulate light. Doing ...
Nature

The surprising science behind red-light therapy — and how it really works

People are buying helmets, face masks, vests and beds that emit long-wavelength light. Beneath the hype, there is some ...
Sports Illustrated

Big 12’s ‘Slippery’ LED Glass Court Draws Mixed Reviews From Players: ‘Making Me Feel Dizzy’

KANSAS CITY, Mo. — Big 12 commissioner Brett Yormark is always looking to push the innovation envelope. His latest stratagem—a light-up, non-wood playing surface for the league’s men’s and women’s ...
Hackaday

This LED Strip Clock Aims To Make Your Next One Easier, Too

At first glance, it may look like [Rybitski]’s 7-segment RGB LED clock is something that’s been done before, but look past the beautiful mounting. It’s not just stylishly framed; the back end is just ...
Wall Street Journal

Startup Making AI Chips More Power-Efficient Raises $500 Million

Ayar Labs, a decade-old chip startup backed by Nvidia NVDA-3.28%decrease; red down pointing triangle and Advanced Micro Devices AMD-1.92%decrease; red down pointing triangle, has raised $500 million ...
CNET

Are Your LED Lights Dying Fast? We Found Out What's Going On

We asked experts about why our LED bulbs seem to die ahead of time. Here are the reasons they gave. Tyler has worked on, lived with and tested all types of smart home and security technology for over ...
Popular Science

How to make any smartphone easier to use for a senior citizen

🛍️ Amazon Big Spring Sale: 100+ editor-approved deals worth buying right now 🛍️ By David Nield Published Mar 2, 2026 9:26 AM EST Add Popular Science (opens in a new tab) Adding us as a Preferred ...
Wired

The Best Red Light Therapy for Hair Growth

Hair loss isn’t always dramatic. It can be incremental. You start noticing a bit more scalp in harsh bathroom lighting; a tiny bald spot when you tie your hair up in a ponytail. The shower drain is ...
Chatham House

With Iran attacks, President Trump is making the use of force the new normal – and casting aside international law

The United States has taken a further, major step in unhinging the global order. The core principle of that order is that no state can go to war in pursuit of its own national policy. Where use of ...
BBC

Disability panel warns police about blue lights use

The panel of people provided Cambridgeshire Police with "invaluable" feedback, the force said A police force on a mission to have a more diverse and inclusive culture has been told by a panel of ...