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Some cheap Chinese torches claim some brightness higher than the sun or epicenter of nuclear explosion, so take whatever exaggerated numbers with a grain of salt... Mileage of quality also varies - have some Chinese cheap lights that the button stopped working after a dozen dives or so, others...

Egypt has superb diving, August is as good as any. Water us warm enough to enjoy diving with a shorty or rashguard only- no weights and all that I think is more fun Temperature outside is hot but dry- some places the wind is hot it feels like a hairdryer. Just more incentive to spend time...

I would say that you are lucky to have two shops less then 10 min away. Choose one, get your certification and start enjoying your diving.

I always wonder how a person who wants to do an OW can actually tell the difference between agencies, and whether instructor A is a "great one" and to avoid instructor B? Or, what to ask the instructor in n order to "customize training"? What does that even mean and how can someone who never...

I use Mares X-vision, works fine with my beard as is (no trimming nor silicone smear).

As a kid, I was in a sailing club and we were going out to see twice a week, weekends and holiday. My first years I used to suffer a lot, almost every time we went out to the sea the fish were happy knowing they will enjoy my breakfast. I was not the only one, other kids were also vomiting at...

Because you are trying to apply linear extrapolation to a non linear solution.

Many years ago- more than I care to admit- was trekking with a couple of friends along South African coast. We were told to cross the rivers only during low tide, the claim was that at high tide Zambezi sharks venture up the rivers to feed on occasional cattle or whatever/whoever they find in...

If anemone clownfish were the size of a triggerfish, then there would be no such a thing as recreational uae of the ocean, we'd be all shitting in our wetsuits 😅 Sharks, as it happens, "eat" a few humans every year. Humans eat millions of sharks annually. If I were a shark and saw a human- I'd...

I am not sure what exactly your instructor referred to by "less stable", but it seems he meant the Single Tank Adapter (STA)? Some prefer it, others hate it. The wing needs some reinforcement lines (not sure how the exact term is called) in order to be able to use without STA. I use a Halcyon...

Myth. Everybody knows they are attracted to Yum Yum Yellow.

No. Period.

Scoliosis here. For me, back pain was worse in the days of jacket bcd and waist weight belt. Since BP & Wing it became more easy on the back for me. I am not a sidemount zealot, I enjoy the diving whether BM or SM. Nonetheless, days when I suffer from back I do take SM rig, two AL10 tanks. I...

The calculation is simple enough- Archimedes' principle. It is simple if you know all the details, which most of us don't l: exact differences between salinity (or water's specific gravity), the volume of water that you displace, including equipment. This is very different for each individual...

Both the Mediterranean are among the most salty bodies of water. As with any large body of water, it is not necessarily constant in either depth or location. That said, the salinity in north red sea is about 39-41 g/kg, and med sea is 35-39 g/kg, such a large range of differences is not so...

It is a similar phenomenon as the perception of the size of the moon, it looks much larger near the horizon than when it is high up. Underwater, we also perceive differently the horizontal distance vs. vertical. In the horizontal we usually have objects that help us with perspectives, whereas...

You can easily DIY this type of slate using McMaster-Carr PVC electric conduit covers, they come at different sizes and easily cut and drilled where needed: https://www.mcmaster.com/products/electrical-conduit/low-profile-raceway-7/

At some point you will have to compromise accuracy for practicality. Determine to yourself what is an acceptable temperature measurement accuracy and set up your sensors accordingly. IMHO you can use the thermal image posted earlier as a reference to see the hottest spots, or you can sample a...

Take whatever is written in the news with a salt of grain, most of the time these are inaccurate, at best That said, it is most likely not a 1st stage failure- these are very rarely the cause for accidents. I wouldn't say panic, it appears that the father's last act was to deliberately try to...

Bear in mind that steel tanks can vary considerally in weight, even from the same manufacturer- depending on working pressure, year etc. Some can even be slightly positive when empty. The empty weight is stamped, but not always readable.. I always carry a couple of weight plates, bungee and...