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 ...

This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and make it a warning light for a forklift or even a turn signal light for a ...

From local dimming and HDR brightness to Mini LED, RGB LED, and Dolby Vision 2, we answer reader questions about modern TV picture quality and what display technology matters most in 2026.

This project demonstrates a low-cost intelligent traffic signal system using Arduino and ultrasonic sensors to reduce congestion caused by fixed-timer traffic lights. Four HC-SR04 sensors detect ...

In this tutorial, we build an advanced red-team evaluation harness using Strands Agents to stress-test a tool-using AI system against prompt-injection and tool-misuse attacks. We treat agent safety as ...

With "vibe coding," almost anyone can be a programmer. Just ask an AI to generate code through a ChatGPT-like conversation, and refine the output. This technique is rapidly becoming a popular way for ...

On February 2nd, 2025, computer scientist and OpenAI co-founder Andrej Karpathy made a flippant tweet that launched a new phrase into the internet’s collective consciousness. He posted that he’d ...

The Philips Hue app has grown in complexity over the past several years, with more and more new features and settings being tucked into the user interface. That makes it all too easy to miss the ...

Most people use red light therapy 2-5 times a week for 10-20 minutes. You can use red light therapy to increase melatonin and improve your sleep. Do not use red light therapy for longer than 30 ...

Different AI models win at images, coding, and research. App integrations often add costly AI subscription layers. Obsessing over model version matters less than workflow. The pace of change in the ...

Photons, for centuries both a puzzle and a tool, continue to help scientists illuminate nature at the smallest and largest scales. Photons, the fundamental particles of the electromagnetic field that ...