Those Electronic Speed Limit Signs Can See How Fast You're Going Without A Camera: Here's How

Electronic speed limit signs can be a helpful reminder to slow down on the road, but without knowing how they work, the ...
Bay News 9

Speed detection cameras now active in some Tampa Bay-area school districts

TAMPA, Fla. — School is back in session all across the Tampa Bay area, and that means speed detection cameras are active in numerous school zones across the region. The School Speed Zone Camera ...

I tested five speed camera detectors for drivers — here's the one I'd buy

I took five of the best speed camera detectors for a long drive. Which one came out on top?

Room-temperature device synchronizes distant laser spots into single coherent 'supermode'

Researchers have demonstrated a new way to make spatially separated lasers synchronize and act as a single coherent light ...

Ultrafast X-rays allow researchers to 'watch' how molecules rearrange during a chemical reaction controlled by light

Since the 1980s, researchers have sought to use laser light to control chemical reactions relevant to photochemistry, catalysis and light-responsive materials. But this technique, known as coherent ...

New License Plate Reader Tech Could Track Phones, AirPods, and Smartwatches

Leonardo’s SignalTrace adds wireless device detection to ALPR systems, raising new questions about roadside surveillance, ...
Hackaday

All The Different Lasers, And How Well They Mark 3D Prints

Stefan] of CNC Kitchen has an informative video describing his experiences with trying to cleanly laser-mark 3D printed ...
Hackaday

Laser Scanning A Cave With Homebrew Gear

How do you measure the inside of a cave? You could do a bunch of hard work with classic surveying gear… or you could just use a laser scanner. [9nl] did the latter, with a scanning rig of ...