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Gravity-Powered Trebuchet Breaks Sound Barrier

A 3:1 pulley and a carbon-fiber throwing arm converted more drop energy into rotational speed to push a 4-gram projectile past the speed of sound.

Gas Streamer Likely Tilted GW Orionis' Triple-Star Disk

Cambridge Engineering Student Sets Fidget Spinner Record With 30-Minute One-Finger Spin

NASA-Backed Studies Confirm Earth’s Spin Is Slowing by Tiny Amounts

Hubble Spots First Known Comet Spin Reversal

ISRO Qualifies Upgraded SSLV Third Stage After Successful Static Test

Gaia Data Reveals Asteroid Spin Divide Explained by Collisions and Internal Friction

Black-Hole-Driven Cluster Model Challenges Dark-Matter Interpretation of Ursa Major III

New Projections Confirm Record-Short Days This July and August

July 9 Recorded Among Shortest Days as Earth’s Spin Continues to Accelerate

Three Record-Short Days Ahead as Earth’s Spin Accelerates

New Mathematical Model Revolutionizes Bowling Strike Predictions

Squirrel-Inspired Robot Salto Achieves Limited Success in Upright Landings

Study Reveals Body Shape Key to Hula Hooping Success