What's this device (circled in blue) that's attached to my furnace? It recently got replaced and I forgot what the HVAC technician called it, or what its function is.

I do rember that they said to put some vinegar in the U-bend (circled in red) once or twice a year. I forgot to ask why this is necessary, but I'd guess that it tends to collect moisture, and the vinegar will prevent mold?

Southern Finland. I've found these and some more bluish ones. They are fairly small (the flower itself is about 4-6cm) and have these long, pretty thick leaves. It isn't visible in the photos, but the petals have this glittery look on them. Here's one of the blue ones, in a vase:

I know they are some sort of nail, but I had one in my tire and at the store found a near identical one and now I'm beginning to think my tire guy is playing shell games. I mean, what are the odds?

Found this in the attic of a house built a few years before Oklahoma's statehood. Looks old, but also looks like a reproduction of something old. It's at least old enough to be super brittle and has tannin staining on the back where it was mounted to a piece of wood for a LONG time.

A brittle rock made of glitter. It breaks in this linear fashion and can be pound into sand by a mortar and pestle.

Anyone got any clues?

Edit: Thanks for all the answers. I found it in Romania and after searching for forums of minerals from Romania, I got a few other clues.

It isn't conclusive to me yet, but the possibilities are:

• Pyrit
• Mica
• Schist
• Nagyágit
• Calaverit
• Sylvanit

Of these, Mica and Sylvanit fit the best (imo).

I've acquired this thing recently. It's solid wood and none of the parts move. The handle is firmly attached. It measures 14" tall. It comes with three different sized holes: 1-1/4", 1", and 7/8".

So far, my guesses are: misc. tool holder, tobacco pipe rack, communion cup holder, crochet needle holder, or shot glass flight tray. Any help would be greatly appreciated!

I think it could be an isopod but am unsure. It doesn't look like ones I am familiar with in houses (usually basements, which is not where this is).

It is about 10mm or 3/8" long, seems to move towards the top of the picture (but mostly is just wiggly), and is slightly hairy. Western USA.

Saw this at a friend's house and thought it looked pretty gnarly. I think it's a Buddhist statue or Karura/Garuda but I'm am entirely not sure.

We are stumped!

The disc is otherwise printed like a "normal" Bluray, but there is this metallic quadruple ring on top. The image is from the "proof" of a scene release, so it might have something to do with being an early release.

In my flat I had a normal hook for towels in the bathroom. And this one. It's obviously just a part of whole hook, but other hooks are solid (can't be disassembled). I found that it's probably Gio Bella Riete collection, but didn't found any possible match. Examples of other accessories from this collection:

I recently bought a few machinist chests full of tools and other goodies. I'm not a machinist myself, but I'm familiar with a lot of the tools associated with the trade. This piece is a smooth solid steel cylinder with four equal spaced holes bored completely through it. It measures approximately 5.5" long and 2.25" diameter. Weighs almost 4-1/2 lbs. The end has stamped "Feb. 48 Eddie Champ." The other end is identical minus the engraving.

I suspect it might be a cylindrical square, but I've not seen examples quite like this. It came with a plastic sleeve.

I haven't seen one of these in a few days, so I thought I'd toss in one of my own.

It's meant for via ferrata to reduce the impact of falling on static gear. You loop a short rope through the holes and it absorbs the forces of the fall by friction of the rope slipping through. This is the Kong Kisa.

This plant assaulted me with prickly spores. I think the other spores might be related. Zone 6b

https://pxlfdde.fsn1.your-objectstorage.com/public/m/_v2/791175513466675946/758e75a50-ddd61a/yZUZBfe1uPud/1PEk8Vd0XguzHAu7FMgYkvznUMPEIAzntlHLzmBC.jpg

https://pxlfdde.fsn1.your-objectstorage.com/public/m/_v2/791175513466675946/758e75a50-ddd61a/9pd7deRHQm8f/K8kaJ6vvv2iRpXXXymtXIIazcx2YIEewRsZcYOTr.jpg

https://pxlfdde.fsn1.your-objectstorage.com/public/m/_v2/791175513466675946/758e75a50-ddd61a/U4oC0LlC2wpm/xrssZcDgVvrhosxS9eXmzlic4XWchOYGYfPeqVwD.jpg

This picture was taken on the Rio Grande River Valley, on the left side of the image is the river, the right side is the flood control ditch. I am guessing the purpose is when the river rises too high some underground pipes divert the extra water to this so it can drain into the flood control.

This image there is a second, black pipe visible that goes under the ditch road and empties into the ditch.

I would love to know what the grey pipe is called so I can look up a diagram of how they work exactly.

Current out-of-bounds item list for reference:

• Fidget and other sensory toys because I feel like moving in a certain way purely for the sake of itself isn't in the spirit of these challenges.
• Alternative "wellness" products that largely function as placebos by being in the general vicinity of a person such as crystals and "energy focusing copper coils" and the like. Weird looking traditional instruments like a special type of gong or something are acceptable.
• Specialty massage products are fine provided they're mostly used to massage an area other than the genitals (at least, assuming I can tell, but I'm fairly knowledgeable in that area). I do not use sex toys at all for these challenges (that's just not what my aim here is). It's also still ok if the specific massage philosophy claims to have other, pseudo-scientific benefits such as for chiropracty or acupuncture, as long as the tool itself is an actual massage tool.
• objects that are mostly or entirely ornamental / decor

• Fidget and other sensory toys because I feel like moving in a certain way purely for the sake of itself isn't in the spirit of these challenges.
• Alternative "wellness" products that largely function as placebos by being in the general vicinity of a person such as crystals and "energy focusing copper coils" and the like. Weird looking traditional instruments like a special type of gong or something are acceptable.
• Specialty massage products are fine provided they're mostly used to massage an area other than the genitals (at least, assuming I can tell, but I'm fairly knowledgeable in that area). I do not use sex toys at all for these challenges (that's just not what my aim here is). It's also still ok if the specific massage philosophy claims to have other, pseudo-scientific benefits such as for chiropracty or acupuncture, as long as the tool itself is an actual massage tool.
• objects that are mostly or entirely ornamental / decorative in nature like jewelry and sculptures. I'll s