the sentry gun has pretty much what you’d expect under the hood — Raspberry Pi, NoIR camera, a servo for aiming and a solenoid valve to control the water. OpenCV takes care of locating the ...

Here’s how it works. With spring on the way and winter blues being chased off, it's the perfect time to start thinking about the best water guns. Seeing as we're still in the off-season ...

"I told my fiancé that I want to give his groomsmen water guns filled with red wine on the day of our wedding in case she does turn up in white," she wrote. "He's all for it." The bride ...

If you own a water pistol and are free on Saturday, September 28, the National Trust for Scotland needs you — for the dousing of a lifetime. The charity is looking for volunteers to squirt water at a ...

Get the best pichkari deals from Amazon and other online shops to celebrate Holi! Get your long-range spraying as well as large capacity water tanks with electric automatic water guns such as the ...

Hong Kong police have arrested two men on suspicion of disorderly conduct after they allegedly soaked officers and reporters with a water gun at a Thai celebration of the new year on Sunday.