A hands-on physics experiment demonstrates how a basic self-braking pulley works, explaining the forces and friction that allow it to stop itself without extra mechanisms. ‘Not good people’: ...

Tennessee executed Harold Wayne Nichols by lethal injection Thursday in Nashville for the 1988 rape and murder of Karen Pulley, a 20-year-old student at Chattanooga State University. Nichols, 64, had ...

The Council for the Indian School Certificate Examinations (CISCE) has announced the date sheet for the Indian Certificate of Secondary Education (ICSE) and Indian School Certificate (ISC) for 2026 ...

The Great Pyramid of Giza—the largest of Egypt’s pyramids—consists of about 2.3 million limestone blocks. The smallest of these weigh two tons, while the largest weigh over 60. History says laborers ...

A new study reinterprets the chambers and passageways of the Pyramid of Khufu not as tombs, but as parts of a gigantic construction machine, solving mysteries that have persisted for millennia. For ...

Shannon Pruden receives funding from National Institutes of Child Health and Human Development and National Science Foundation. Karinna Rodriguez does not work for, consult, own shares in or receive ...

In the sure and certain hope of salvation, Penny Shelton Pulley passed away on July 28, 2025. She was sixty-six years old. Penny was born in Jacksonville, North Carolina and was predeceased by her ...

The Satellite Applications Catapult has upgraded its In-Orbit Servicing, Assembly and Manufacturing (ISAM) facility to add a gravity offload system. The large steel structure – to simulate ...

One common misconception is that belts will slip more frequently on composite pulleys than on metal pulleys. Not so! The wedging action of V-belts is so efficient that slip should never be an issue; ...

A Philadelphia landlord faces up to five years in prison after he pleaded guilty Wednesday to voting in two states in the 2020 presidential election and twice during the 2022 election in Pennsylvania.