Engine oil is vital for protecting a car’s engine. If your car requires 5W-20, can you use 5W-30 instead? Here’s why those ...

National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China ...

THE abnormally high heat conductivity of helium II below the λ-point, as first observed by Keesom, suggested to me the possibility of an explanation in terms of convection currents. This ...

The present data were obtained from observations on the flow of liquid helium II through long capillaries. Two capillaries were used; the first had a circular bore of radius 0 -05 cm. and length ...

Scientists have long known how to measure the energies and velocities of electrons in crystalline materials, but until now, those systems' quantum geometry could only be inferred theoretically ...

Over the past 40-plus years, I have changed the oil in more engines than I can begin to count. If you're about to change the oil in your car yourself, consult the owner's manual that came with ...

Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, United States ...

Kinematic viscosity is expressed as centistokes (cSt) and is a measure of resistance to gravitational flow. It is a primary component of how SAE oil grades are defined (15W-40, 10W-30, 5W-40 ...