"Why would anyone go underwater into an uncomfortably tight squeeze, just to get into another rock chamber that goes nowhere?" That's the question Joseph Emmanual poses early on in his remarkable new ...

In this section we explain dive tables and go through specific examples of repetitive dives, using both the PADI and the NAUI tables. Dive tables are used to determine how long you can safely stay ...

Colors are different underwater. Colors are really nothing more than different wavelengths reflected by an object. Underwater, waves travel differently, and some wavelengths are filtered out by water ...

In this section we describe and discuss all the instruments necessary for scuba diving: submersible pressure gauge (SPG), depth gauge, timing device, as well as the optional ones such as compass and ...

What? More complicated stuff to learn, you might say. Wasn't the "Physics" section enough? All I want to do is go diving. True, but diving means to enter into an environment that is not natural for ...

Time to talk about cameras, underwater cameras. We've tested and reviewed a large number of cameras underwater over the years, both with and without housing. Initially, it was safe to say that the ...

With smartphones digging deeper and deeper into the digital imaging market, rugged outdoors cameras are one of the few bright spots for traditional camera manufacturer. But even they are on the ...

A while ago I wrote about my experiences with seeing colors underwater that human eyes are not supposed to see at depth (see "Red at Depth). In it I described and showed examples of bright red at ...

This is a review and description of the seven day/seven night "liveaboard" dive trip to the Midriff islands (Islas Grandes) of the Sea of Cortez onboard the Rocio Del Mar. The trip consists of crusing ...

Terri Geiser -- culinary expert, chef, lecturer, and caterer -- provides cooking know-how, tips, and hundreds of healthy, delicious recipes.

The 12.3 megapixel Olympus E-620, which bridged the gap between the US$499 Olympus E-520 and the US$999 E-30, was introduced in February of 2009. Compared to its predecessors, it demonstrated the ...