20 Mysterious Things The Internet Was Able To ID With Surprisingly Little To Work With

Dan
A mercury arc rectifier
reddit | woxak

True crime makes for compelling watching, but it involves mysteries that the average person probably doesn't want to be mixed up in. But there are smaller, everyday mysteries that are an absolute delight to investigate.

For instance, let's say you found something weird and need to figure out what it is. Where would you start? Well, if you're anyone who knows anything about the internet, you already know the answer: ask people on the r/whatisthisthing subreddit.

"Found on the ground in a high school classroom, the black part has a clicker thing and there's a metal wire mesh on the tip."

Stylus from a Motorola phone
reddit | prestotren

I was hoping it would be some sort of magic wand device used exclusively by teachers, but it's actually just the stylus from a newer model Motorola phone.

"This frisbee-sized disc I found fixed solidly to the ground at the top of a cliff in a out of the way part of Dartmoor, England. Completely immovable when I tried to kick it."

Geologic survey benchmark
reddit | potablewateroffun

This is most likely the benchmark for a geologic survey — essentially a way for surveyors to keep their measurements accurate.

"What is this thing being escorted to Wyoming from Colorado?"

Submarine propeller being transported on highway
reddit | alasko84

The answer here is pretty interesting: it's the propeller for a 688 class attack submarine. I don't buy it, though. I'm pretty sure this is a straight-up UFO on its way to some dark site.

"What is this tall, silver thing in the dining room of a 1960s California home?"

Vintage photo with doctor's scale in the background
reddit | amariegm

This looks like a doctor's scale, and that's exactly what it is. Why do they have a scale in their living room? For whatever reason, it was a popular stylistic choice at the time.

"What are these small silver caps in a straight line on the sidewalk? Never seen it before."

Sidewalk markers
reddit | freeapple01

These are the markers that city planners put in sidewalks to indicate the spaces where business owners are allowed to set up tables and displays.

"What is this? it’s a little door by the toilet with a spoon-shaped device attached to a hinge. It’s in an older house from 1938."

Old toilet paper dispenser
reddit | KingBarbarosa

Back in the days before toilet paper always came on rolls, this is what a TP dispenser looked like. The spoon thing is a weight to hold a stack of tissues down.

"Long tool with a metal dial on the top that you can twist. Possibly related to calligraphy or type setting."

A drafting pen
reddit | ThreesomeAtMcDonalds

This is most definitely related to typesetting, as it's a drafting pen. The size of the line can be adjusted by changing the size of the gap in the pen.

"I have found several of these small plastic caps around the parking lot of our business."

A plastic proxabrush cover
reddit | nathanhostetter

This is one of those highly-specific objects intended for one product. That product is a proxabrush, a brush used similarly to dental floss, and the object in the photo is a proxabrush cover.

"These two things floated to the ground just after a large plane passed low over my house. They're gritty and rubbery, almost like dried paint. They also have a strong overly sweet smell."

Clump of flame retardant powder
reddit | youneednewshoes

This is a clump of the flame retardant powder that gets sprayed over forest fires.

"Antenna like thing found in a back yard near a golf course?"

Ham radio antenna
reddit | 7LeggedEmu

This isn't an antenna-like thing, it's an antenna, full stop. It's a fairly specialized antenna, though — not for TV or internet reception, but for ham radio operation.

"This piece of brass and possibly lead is embedded in a piece of planed wood. It has been sitting on a shelf for years and I have no idea what it may have been."

Bullet embedded in piece of wood
reddit | junkcollector1979

If it's a small chunk of metal and it's embedded in wood, it's probably a bullet or a slug. That's the case here.

"A house warming gift. It's half wood, half marble, two semi circle dips, mini spoon. What the heck is it?"

Pinch pot for salt and pepper
reddit | Lower-Tiger-5129

My go-to answer for things like this is generally either "snuff box" or "drug paraphernalia," but this is neither of those things. It's a "pinch pot" for when you just need a pinch of salt or pepper.

"Aside from it obviously being a hammer, what is this extra bit for?"

Hammer with 2x4 straightener
reddit | ProjectDirtbikes

This is a common feature on hammers that are commonly used by people doing home renovations. The extra piece is to help straighten out 2x4s while doing framing work.

"Sliding tray with holes on both sides of this sofa."

Slide-out tray table in couch
reddit | belokan

This is only part of a two-piece tray table. The missing tray part has pegs that fit into the holes here, allowing it to sit solidly while still being removable.

"Found on the grass in a suburban business park. Lightweight like paper or dried mud, crumbles easily, yet holds its shape in water. Square holes run all the way through to the other side."

Inside of a car's catalytic converter
reddit | RossGriffon_Bmore

Car mechanics and car strippers will immediately know that this is the inside part of a car's catalytic converter.

"Recently moved into a older house, there are 2 of these 'outlets' in the house with this weird device behind them, what is this thing?"

Motion sensor inside electrical outlet
reddit | lorddaryn

The 'outlet' part is clearly a dummy as it doesn't connect to anything inside. The most likely answer here is that this is an older motion sensor.

"What is this hatch I've seen on the outside of houses in the UK?"

Boot scraper next to a door
reddit | Kattfiskmoo

This is a handy little feature that really ought to be outside every single door. It's a boot scraper. Its purpose is...being there for you while you scrape the crud off of your boots.

"Carved piece purchased from an antique shop in Poland. What is it and what could it be carved out of?"

Decoration made from whale rib bone
reddit | OkDiet734

We can say with certainty that this is made from a whale's rib bone — this is made clear by the marrow that's visible inside. Its purpose, though? Probably a ceremonial dagger or something.

"This gold arched decoration with a crystal in the middle. Wife found it at a Goodwill and I feel like it has religious backgrounds."

Antique pickle jar stand
reddit | Parisbruv

It definitely looks religious in nature, but it's actually an antique pickle jar stand. Apparently if the sun refracts through the glass, it can start fires, so that's neat.

"Around 1m high made of glass, probably originated from a refinery or a power plant before the '90s."

A mercury arc rectifier
reddit | woxak

It looks like it came from a mad scientist's lab, and its name — mercury arc rectifier — just makes it seem more mad scientist-y. Its purpose is banal, though — it converts alternating current into direct current.