Abstract: For ping-pong playing robots, observing a ball and predicting a ball's trajectory accurately in real-time is essential. However, most existing vision systems can only provide ball's position ...

Abstract: This letter presents a novel easy-to-manufacture ball-pen gap waveguide (GW) by utilizing commercial low-cost ball pens to have mechanical reconfigurability. The proposed ball-pen GW ...

Support our Mission. We independently test each product we recommend. When you buy through our links, we may earn a commission. The 2025 MyGolfSpy Golf Ball Test presented by UNRL confirmed that while ...

Support our Mission. We independently test each product we recommend. When you buy through our links, we may earn a commission. If your wedge shots refuse to check up, it might not be your technique.

The golf ball aisle at your local shop likely has myriad options from which to choose. Boxes lined up in neat rows, flashy logos promising distance, feel, control and tour-level performance. For the ...

In this video, I teach you how to perform three visual and easy pen magic tricks. These tricks will still require a little bit of practice but you should learn them pretty quickly. When Ichiro Suzuki ...

The answer to this week’s contest crossword is a pitcher in the National Baseball Hall of Fame. Email your answer in the subject line to crosswordcontest@wsj.com.

Anthony Blazevich does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Joel Embiid is a former NBA MVP, a two-time league scoring champion and a seven-time All-Star. Surely he can pull off the basic skill of spinning of basketball on his finger, right? As Team USA ...