On my first flight to Israel, I stretched out in a comfortable chair on EL AL Airlines, enjoyed a kosher meal and reread notes by the famous Russian traveller and pioneer explorer, Afanasiy Nikitin (circa 1466-1472). Only on the approach to Tel Aviv did I suddenly realize how small a country Israel was, and that it bordered three seas.

How can rebreather diving be made safer? That was the question at the core of the numerous presentations and discussions at Rebreather Forum 3 (RF3) held in Orlando, Florida, this May.

When it comes to cameras, traditionally, gear is divided into compact point-and-shoot or single lens reflexes (SLR). Compact point-and-shoot cameras are simple devices that many people use just for snapshots. In order to keep the price low, the lenses are not as sharp as the ones designed for SLRs. Some compact cameras are compatible with add-on conversion lenses to expand their range.