so a gear with a helical angle of 35 must mesh with one that has an angle of −35. The industry convention refers to these as left-handed and right handed. In this library, positive helical angles ...

Summer must be coming as space scientists spot a celestial ice cream sundae. NASA’s James Webb Mission Team have captured an ...

The NASA/ESA/CSA James Webb Space Telescope has captured a beautiful juxtaposition of the nearby protostellar outflow known ...

Optical fibers provide an excellent platform for transmitting light over long distances, manipulating it and enhancing ...

Using the Australia Telescope Compact Array (ATCA), astronomers have performed high-resolution observations of a nearby ...

One halcyon spring day in 1903, the 69-year-old anatomist and naturalist Dr. James Bell Pettigrew sat at the top of a sloping ...

Common seashells found on a morning stroll in Sanya offer a beautiful example of handedness – or parity violation.

January 17, 2025 • Inauguration Day is President-elect Donald Trump's chance to set the tone for the next four years. Currently, his favorability is the highest it's ever been. He's already ...