Painter must work fast and precise at this stage because "golden hour" also means that plaster will soon "lock up" - stop receiving paint (the paint will change to much lighter opaque tone as soon a it touches the plaster - that is it put the brush down!).
In the last decades, microwaves have been considered as a potential tool for the assessment of materials or structures where visual inspection is not possible, owing to their capability to sense and penetrate light-opaque materials with a fair trade-off between penetration and resolution.
Green glass is transparent to green light but opaque to blue and red; hard rubber is transparent to infrared and X rays but opaque to visible light.
Vellekoop, I. M. & Mosk, A. P. Focusing coherent light through opaque strongly scattering media.
The physical properties of paper (its being thin, light, porous, opaque, and flexible) afford the human actions of grasping, carrying, folding, writing, and so on.
The former category includes a pork-and-mushroom bowl in which the sliced shiitakes prove as meaty as the featured protein swimming in a light, savory, opaque broth.
"The X-ray data suggest there are extended layers of the planet's atmosphere that are transparent to optical light but opaque to X-rays," said co-author Jurgen Schmitt of Hamburger Sternwarte in Hamburg, Germany.
The thin skins and low levels of phenolic compounds lend Pinot Noir to best produce mostly light, more opaque red colored, medium-bodied low tannin wines – a stark contrast from the deep cabernet sauvignon expressions.
"The X-ray data suggest there are extended layers of the planet's atmosphere that are transparent to optical light but opaque to X-rays," study researcher Jurgen Schmitt of Hamburger Sternwarte in Hamburg, Germany, explained in a statement.
The PFS used for evaluation in the study is Delton® Light Curing Opaque Pit & Fissure Sealant (Dentsply Ltd; CE0086).
