The author built a low-cost landing gear warning system for their aircraft using a lidar sensor and an Arduino microcontroller after a near-miss incident. The system uses a lidar sensor to measure ...

Smoke detectors that only beep at night are acting up for a specific reason: Here's what can save your sanity and sleep.

Columnist Halsey Blocher has a weird experience reminiscent of an Edgar Allan Poe tale involving things that go beep in the night.

Continental’s ultrasonic back-up sensor kit is ready to retrofit on virtually any vehicle combination, including commercial vehicles and off-highway units. The unit offers an audible alarm when a ...

One of the most common sounds in the modern world is the beep. From microwaves and cellphones to computers and backing-up trucks, this high-pitched alert pings us from every direction. But how is it ...

In order to study how young fish such as salmon are affected by swimming through hydroelectric dams, scientists have traditionally equipped them with surgically-implanted acoustic tracking tags.