A pair of alternating flashing LEDs makes an excellent visual alarm. One of the LEDs remains illuminated, so there's little chance the alarm will go undetected, even by a casual glance. Several ...

This is a flashing led lights circuit powered from a 12V DC power supply that uses the well known 555 IC. Flashing lights have many and varied applications in life. They are used as warning lights on ...

Introduction Do you have to see it to believe it? You might want to rethink your strategy. Scientists now know that what we perceive can be very different from what is really there. Our brains are ...

Checking a text on your mobile phone while crossing the road might seem harmless, but if you are unaware of the traffic flying by it could have tragic consequences. A QUT study found flashing LED ...