This cleaner works by surrounding the surface of debris particles like a carbon and forcing them to break up. (geekwrapped.com)
I luckily have a huge surround surface that I put my oil, bubble and bath salts on. (theinspiredroom.net)
Cold - core rings are more difficult for satellites to track because their originally cool surface water is warmed by absorption of solar radiation so that they become almost indistinguishable thermally from surrounding surface waters. (oceanmotion.org)