People can't believe a wavy brick wall uses fewer bricks than a straight one, but it's true
The "crinkle crankle" wall is a testament to human ingenuity.

Crinkle crankle walls are more common the U.K., but they can be found in the U.S. as well.
If you were to draw a straight line and a wavy line from point A to point B, there would be no question which one used more ink. After all, "The shortest distance between two points (on a flat surface) is a straight line" has been baked into our brains since elementary school math class. Logically, a wavy line uses more ink because it covers more distance, right? Right.
So if that's true, how is it possible that a brick wall built in a wavy pattern could use fewer bricks than a straight one built between the exact same two points?
Not only is it possible, it's actually true, despite people's disbelief over the fact.
A post on X from @InternetHOF shows the claim that "corrugated brick fences" sometimes seen in England use fewer bricks than a straight wall, with the caption, "I don't believe this is true."
It does seem illogical from a pure geometry-on-paper standpoint, but what makes it true is how the structural integrity of brick walls works.
There are all kinds of nitty-gritty calculations a structural engineer could get into to explain, but thankfully, internet hero (and strangely popular X account) Greg came to everyone's rescue with an explanation that neatly fit into a single post on X.
"They're called crinkle crankles," wrote Greg. "A single leaf wall over that distance would need brick piers approx every 1.5-2m if it was a retaining wall it would need to be at least 9” wide (2 bricks). The crinkle crankle has more strength due to it’s curved nature so can be 4” wide or a single leaf of bricks.
"For the maths if we can assume they’re true semi-circles then each semi circle would be 1/2piD or 1.57D whereas a double leaf wall would be 2D for the same length D.
"Therefore using 21.5% less bricks than a double leaf wall hope that clears things up."
In even simpler terms, a long, straight brick wall only a single brick wide would not be able to stand without some kind of buttresses every couple of meters, which would actually take more bricks to build. Otherwise, it would need to be thicker, which would also increase the number of bricks needed. The curve of the crinkle crankle (best name ever) provides stability all on its own, so the wall doesn't need structured supports.

Crinkle crankle walls are usually referred to as serpentine walls in the U.S.
Karen Blaha/Wikimedia Commons
First of all, what a cool piece of human ingenuity that people actually figured this out hundreds of years ago. And second of all, why are there not more crinkle crankle walls everywhere? So much more fun and whimsical. And apparently, a better use of resources.
But before you go building your own crinkle crankle wall to make your house look super cool, make sure you've got the geometry correct. There are actual specifications for making a structurally sound serpentine wall, and if you don't do it correctly, you may find yourself with a pile of bricks and no wall, curvy or straight.
If you want to see some cool crinkle crankle walls in the U.S., head to the University of Virginia. Thomas Jefferson himself added them to the design of the Charlottesville, Virginia, campus.

Crinkle crankle wall at the University of Virginia
Carlin MacKenzie/Wikimedia Commons
More crinkle crankles everywhere, please.



A Generation Jones teenager poses in her room.Image via Wikmedia Commons
An office kitchen.via
An angry man eating spaghetti.via 



An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
- YouTube youtube.com
Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.