It's an all-too-familiar scene along the two-lane roads that crisscross farm country: A tractor drives slowly ahead, often at this time of year pulling a grain cart loaded with corn or soybeans. A car ...

Concrete contractors are no strangers to project changes. Advance Construction, Vancouver, B.C., recently was tasked with the job of turning two purpose built slabs specified for vinyl tile into ...

Light collection efficiency is an important factor that affects the performance of many optical and optoelectronic devices. In these devices, the high reflectivity of interfaces can hinder efficient ...

Jim, a frequent flyer, thus a frequent arrival at TLH, at all times and all weather and lighting conditions (early morning or late evening twilight and glare of headlights at night) sends kudos to ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...