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You seem to be shooting your own foot. If you have something clever and innovative,get a patent. If you are trying to woo investors, you aren’t very good at it. Without showing the product, you should at least be trying to explain the business model. Describing the specs on the product would...

Have you spent 4 minutes on social media?

I would say tell the shop. They have a duty to provide a safe work environment for those conducting classes, even the trainees. It will also make them pay attention to the the creepy older guy and they may run interference by keeping him at a distance. The association between the customer and...

If you bring one in a carry, okay with it if they confiscate it and throw it away. I had almost new bottle of sunscreen chucked. It didn’t occur to me that it was forbidden. Accidents happen, but, I wouldn’t intentionally test them

I took an Assistant Instructor course in college in 1983. I believe I got some PE credits for it and the cost was covered under my general tuition. I ended up not getting the certification because of a sinus infection prevented me from completing one of the pool requirements (the instructor...

I think the RK3s are popular because they are essentially a mildy updated version of the old Rocket/ jet design with bright colors and somewhat softer material, making them slightly more comfortable and a little of the plywood on your feet rigidity. TBH, I would buy based on price a significant...

I used the Mares Avanti Quattro for forever, I have some very old school rocket fins for dry diving. The only thing I definitely say is a must are getting fins with an open heel and a decent set of booties. to go with them. Being able to walk on gravel in full gear is priceless. Other...

Those are amazing. I've always thought the wooden ships of the great lakes would make amazing project and be a little more accessible than the Fitz. We use a type photogrammetry in the solar industry and it takes a lot of pictures to build the models. I have seen pictures of aircraft models...

You might look up Photogrammetry. You swim around a wreck site taking pictures. Using a computer to reproduce a 3D virtual model, you can print and paint the model as it sits. I have seen some pretty models out of these systems.

I went on a drift dive with my kiddo and they asked me to baby sit a big buff navy guy 20 years younger than me. We got in the water and started hauling ass. My youngun tried to keep him in site while I tried to keep kiddo in view. Sure enough he OOA within a half an hour. I sent him up to...

For $5k you could have a heated dry suit, that will be far warmer than a wetsuit. People that drop that kind of money on thermal protection are going to spend it on a good custom fit dry. A heated vest that keeps your torso warm might find a market for 2 or 300 with an external battery. The...

I bought a cheap desk lamp with an induction charger built into the base. I can toss my peregrine on to charge it or my I-phone. It’s a little slow on the phone because of the thickness of the case, so I normally just plug it in. I don’t think there will be a difference between the Peregrine...

Shorter divers can be used to cushion your landing should you fall. I also like that I can take off my fins where they are still swimming.

I am almost the same size as you, the Henderson XXLT 5mm fit really well, the legs and arms run a little long, even for me. It is starting to get well ventilated, so I bought the 7mm version on line. It is snugger, and if I was buying in the store, I might have tried the XXXL version. I am...

I pull my mask down if I removing it on the surface, that way a wave won’t steal it. A panicky diver is easy to tell because of the bug-eyed look.

You do realize he also used dynamite to clear a path to get his boat to the Blue Hole and shot sharks feeding on dead whale, right?

I think a lot of the divers that want to dive this type of wreck will be happy to drop money in the local and have the resources to do so. CCR divers and tech divers have dumped a lot of money into gear and are going to spend money. They will also have been other places where 100’+...

A more serious answer. Get a new mask. If you need to clear your mask every couple of minutes, you are wasting air and creating unneeded stress. Mask fit is probably the low hanging fruit in improving your air consumption. I am really hard to fit for masks, the LDS doesn't carry a single...

I am a big guy, 201cm and 105 kg. my SAC is kind of in the sh*tz, mostly because big guys have big lungs. I do find my air consumption is much better when I am solo diving (not looking after others or feeling the need to accomplish anyone else's goals makes my dives much less stressful). Have...

I would say, pack your fins and boots in your luggage. They aren’t going to damaged in transit. Unless they are obscenely long they will fit in most bags. Rental gear that doesn’t fit is a terrible way to ruin something that is supposed to be fun. I bring all my own gear except lead and...