… Hence all things being equal the light developing from the bubble is brighter than that from water and appears white beneath the sun. Twice daily tides such as this are called semidiurnal tides. Both these numbers are essential when judging the eventual quality of waves at any particular surf spot. It’s good to know…
which then make their way up the food chain. Researchers have found high numbers of fibers inside fish and shellfish sold at markets. The difference is that natural fibers (i.e cotton or wool) biodegrade when they enter the water stream and synthetics usually do not. For the reason that is that polyester microfibers float through…
material for some eye doctors within their own lenses. Glass lenses provide excellent optics, probably the most scratch resistant lens material and blocks UV light. However, glass lenses are heavy, thick and dangerous if broken and can’t be used in certain frame styles. Some glass can be acquired with a refractive index as high as…