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That can refer back to my above comment, about the Boy Scouts. I remember the illustration in one of the two books I referenced: a line of Boy Scouts, belly crawling while holding each other's ankles in a human chain, to rescue a victim who fell through the ice. Now, remember, Boy Scouts are...

So many stories here. I don't usually read so many pages of one post, but these are good. I will tell my story, but only after responding to these few choice quotes. And it seems to be the way everything in life is going, and everyone except those in the particular business can easily see how...

I was in the Dominican Republic for Irma and Maria, and I noticed that huge amounts of sargassum washed ashore within a couple of days after each storm. How long does it take for churned up sediment, debris, etc., to clear before visibility becomes suitable for diving again?

Whether it is effective is another question. But I was going to put it more in terms of reducing poaching and habitat loss by offering tourism as a way for local populations to make a living. That may not be the best solution, but it does seem to be a reasonable interim solution until better...

Since the film came out after the Limpet mine, I wonder if Mr. Limpet was named after the mine instead of the snail. I also find an interesting case of convergent evolution, in that there are freshwater snails called "freshwater limpets," which look like the marine limpets but are of a...

I don't see that the new paper "challenges" Darwin's theory so much as adds nuances to it. It still says that the atolls began with the sinking of volcanic islands.

:rofl3:

The neoprene wetsuit is a highly specialized piece of equipment, made of specialized materials with specialized tools. You're not going to be able to do this with your standard sewing machine and shears. Wetsuit manufacturers rely on selling enough suits to make up the cost of the tools and...

Did they ever show a discrepancy? If so, how did you resolve it? We do have that other thread going about "why no accurate computers," so I was wondering if that extends to the depth readout as well.

I suppose now would be a good time to reference that movie, "The Meg"?

Yeah, but the reason it's cheaper for them is because they are being subsidized by customers having to pay to send the products in. If the company covered that shipping too, would it still be cheaper?

Considering that the whole coastal plain was once the continental shelf, I'm not sure why the big hush-hush. Megalodon sharks strewed their shed teeth all over. I saw a kid find one in the gravel parking lot at St. Simons Island, Georgia, but I don't see that parking lot becoming a "spot."

Why the Mickey Mouse ears?

As long as my autism causes me to have sensory processing difficulties, I'm not traveling anywhere that requires face masks. That's not covid denial, that's me adjusting my behavior even though it is inconvenient and difficult. Something the deniers apparently never had to learn how to do.

No surprise that the same people denying climate change are also the ones denying covid. To those of us outside their echo chamber, it is easy to see that their definition of a hoax is: "Something that requires me to change my behavior or lifestyle."

According to the article, there are non-animal sources of squalene.

What's next, asking if a driver's license is really necessary? Sure, someone can learn to drive competently and not get a license, but that doesn't change that there are good reasons why driving without a license is illegal.

Well, I'm a pretty good swimmer, but I never jump in -- if I'm going in the deep end of a pool, or off a boat, I go down the ladder and then let go. In Basic Training for the Navy, I was supposed to jump off a tower into the pool. To this day, I swear I was pushed! When my head popped out of the...

Writing as someone not (yet) certified: I don't want a free pass, nor do I want an instabuddy whom I find out too late got a free pass. All of you experienced divers know the inherent dangers, and how quickly a fun dive can turn into a disaster. I didn't get my driver's license until age 25...

Well, as an autistic person, now I am curious. Was it lack of attention to his buddy, or what? The student who walks away may secretly also use the word fail. I sure would. Not that I necessarily wouldn't come back, but I would still count the first attempt as a fail.