A TikTok video shows a way to retrieve a pizza from the delivery person. Using a pulley system, a box was lowered out of a second-story window. It was then hoisted back up, pizza inside. Good morning.

PHILADELPHIA (WPVI) -- Stores are getting creative when it comes to protecting customers and keeping shopping carts sanitized during the coronavirus outbreak. In Center City Philadelphia, South Square ...

Even the oldest of mechanisms remain useful in modern technology. [Skyentific] has been messing with robotic joints for quite a while, and demonstrated an interesting way to use a pulley system in a ...