40 Times People Asked The Internet “What Is This Thing?” And The Internet Delivered

35. “Found this large concrete structure with two small wooden doors while kayaking through rural Florida. The sign says ‘Confined Space Do Not Enter'”

Solved!

r/sah10183428:

I believe this is a river height gauge. If you’re in the States, you may be able to find its readings via the USGS. Try this site:
https://waterwatch.usgs.gov/?id=ww_current

36. “Yellow maybe plastic balls in a white plaster-like material found in a middle of nowhere at Norwegian fjord”

Solved!

r/daviedonald:

This was bouyacy, used in oil and gas. Typical used for rovs.

37. “Giant bags being pumped full of water with water slowly trickling out”

Solved!

r/sjhill:

Filtering sediment

38. “Pipes running from under hotel way out into the ocean in the Cayman Islands”

Solved!

r/CaymanJacob:

This is deep water source cooling, and many buildings near the beach use it for cooling, as well as the new buildings in Camana Bay. I know that building has it, and I also learned about its importance for the island in school.

Added Context:

“In the Cayman Islands, pipes going into the ocean from a hotel’s water source are most likely a “marine outfall,” which is a pipeline designed to discharge cooling water from the hotel’s air conditioning system directly into the ocean, typically located far from the shoreline to minimize any potential environmental impact; this is because the Cayman Islands primarily use desalinated seawater for their water supply, which is then used for cooling purposes in hotels before being discharged back into the ocean through these pipes.”

39. “A 16″ metal sphere was found floating off the coast of Chichagof Island in Alaska.”

Solved!

r/trueblue862:

If it has no fittings and nothing inside then I would assume that it is a float of some kind possibly intended to be wrapped in a net. I’ve seen them made out of all sorts of materials from stainless steel to aluminium or even some older ones were glass.

u/SanFransicko:

Ship captain here. On the gooseneck vents that ships and boats have on deck, there’s a wire mesh screen right at the bottom of the opening and inside is a spherical aluminum ball. If water comes up on deck the ball will float up and plug the tube that comes from the ballast tank, water tank, fuel tank, void space or whatever it is. I’ve got three spares in my deck locker that look just like that.

40. “The yellow thing in the firefighters hand, it looked like he held it up to my peep hole.”

Solved!

u/MasterK999:

I cannot tell the model from the back of that fuzzy pic but it is a gas leak detection unit.