I built an omni-directional ball-wheeled bike. This bike balanced like a Segway sideways, and drives in all directions, which makes it the ultimate drift bike! I used five ODrive brushless motors ...

Abstract: The pilot-operated proportional directional valve is a crucial component in the airplane landing gear retraction system. The time delay of the proportional valve directly affects the ...

The social media account @tennis_gifs shared a video of Zheng throwing a tennis ball back in the direction of a ball kid. The video is below, so you can be the judge. It looks like Zheng was not ...

All five of One Direction’s studio albums have returned to the UK top 40 as fans mourn the death of former member Liam Payne. The 31-year-old singer fell from the third-floor balcony of the Casa ...

Their prototypes kept fluids flowing in one preferred direction with no need for flaps to control that flow and performed significantly better than so-called "Tesla valves," particularly when made ...

Turning the handle counterclockwise as far as it allows will open the valve, and turning it the opposite direction as far as it will go, clockwise, will completely close the valve. You can also ...

Among the celebrities having a go at the hole-in-one challenge has been One Direction star Niall Horan. The Irishman is a golf fanatic and his ‘Modest! Golf’ organisation have been working ...