RACER

Why a heavy equipment powerhouse is chasing a hydrogen land speed record

JCB – not exactly the byword for high performance, is it?Yet, 20 years ago, the British construction and agricultural ...
New Atlas

NASA pushes next-gen Mars helicopter rotors through the sound barrier

Engineers at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, have demonstrated that the blades of their ...
The New York Times

The 3 Best Speed Cubes (And Why the Rubik’s Cube Isn’t One)

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By James Austin James Austin is a writer covering games and hobbies, which means ...
IEEE

Spatial Coherence-Based Sound Speed Estimation in Plane Wave Ultrasound Imaging

Abstract: A globally constant sound speed of 1540 m/s is often assumed when beamforming ultrasound images, despite variations in tissue properties that lead to heterogeneous sound speeds. As a result, ...
Interesting Engineering

NASA tests confirm next-generation Mars rotors can safely break the sound barrier

NASA’s Jet Propulsion Laboratory (JPL) has successfully tested new rotor blades that surpassed the sound barrier in simulated ...
American College of Cardiology

Limiting Fluid Intake May Not be Needed for Some People with Heart Failure

People with heart failure have long been advised to limit the amount of fluids they consume each day to help reduce congestion, or the buildup of fluid in the lungs and extremities, but that advice ...
IEEE

Robust Imaging of Speed of Sound Using Virtual Source Transmission

Abstract: Speed of sound (SoS) is a novel imaging biomarker for assessing the biomechanical characteristics of soft tissues. SoS imaging in the pulse-echo mode using conventional ultrasound (US) ...