People are sharing the most random facts they know. Here are 15 of the most intriguing.
An 18" pizza is more than double the size of a 12" pizza.

The Hindenburg disaster, a slice of pizza and a squirrel.
How is it that some people seem to know a lot of random facts and are great at trivia, while others can’t get a question right while watching “Jeopardy!”? A big reason is curiosity. People interested in many different subjects have a more significant knowledge base than those who do not.
Further, when people are genuinely interested in a subject, they retain knowledge much better than if they heard the information in passing. So, while two students may learn the same thing in class, the genuinely interested one will remember the information, while the other will quickly forget it.
Studies show that curiosity is one of the most significant predictors of having a high IQ.
A Redditor named TechSavvy_Ryan asked the curious folks on the platform to share the facts that “most people don’t know.” The post went viral, inspiring over 8,000 responses in just two days. So, we cobbled together a list of the 15 most intriguing facts so you can wow people at your next trivia night or cocktail party.
1. Hindenburg survivors
"Most the people involved in the Hindenburg disaster lived." — CaligulaMonkey
"It was said 62 of the 97 people survived. You can see them running away in the nick of time as they touched the ground." — Rook2Pawn
2. Freaky fish
"Irukandji jellyfish grow only to about 1 cubic cm in size, but have an incredibly painful sting. One symptom of the sting is a strong impending sense of doom. Victims have begged their doctor to be killed as they were certain they would die anyways." — NikkiRex
3. Dangerous laughter
"You can collapse your lungs from laughing." — ContentTask2032
"So you can technically die from laughing?" -PaptaLopikju-
4. Dark side of cruises
"The amount of murder, rape and suicide that happens on cruise ships. Most of them unresolved, too." — PeacefulKillah
"Most newer cruise ships also operate an onboard morgue, as they are now considered cheaper options to retirement homes. Last time I was on a cruise, a crew member let slip that there were 2 deaths from natural causes." — Kegman83
5. Happy birthday
"A company called Warner Chappell Music collected licensing fees for use of the song 'Happy Birthday to You' all the way until 2015. That’s why characters in movies often sing other songs like 'For He’s a Jolly Good Fellow”'and restaurant chains often have their own birthday songs they sing to customers." — ItsMeCourtney
6. Burial facts
"A burial plot is called a graveyard if it's part of a church lot. It's called a cemetery if separate." — Missusmidas
"The backyard is only a graveyard if they can find the body." — Diels_Alder
7. Spanish Africa
"The only Spanish-speaking country in Africa is Equatorial Guinea. Its capital, Malabo, is on an island slightly northwest of the country’s mainland." — Dre_Lake
8. A case of bad nerves
"If your nerve is broken in the wrong way, the nerve will send a pain signal to the brain and it won't stop." — RhiannonCrystalLady
9. Pizza truth
"An 18-inch pizza is more than two 12-inch pizzas. To do the math, the surface area of a circle is pi x r squared. Pi is the constant. 18 in pizza has a 9 in radius, or r. 12 inch has 6. 9 squared is 81, 6 squared is 36. 36 x 2 is 72. 81 is greater than 72." — Who_Else_But_Macho
"Not only that but if you assume that each pizza has a 1" wide crust all the way around, the 18-inch pizza is 79% toppings and 21% crust, while the two 12-inch pizzas are only 70% toppings and 30% crust. So not only do you get MORE pizza, you get a more efficient pizza with a greater toppings-to-crust ratio." — Tajwriggly
10. Declare your pacemaker
"When a body is to be cremated, the funeral director will first ensure that any rubber sole shoes, watches, phones, glasses, and sealed glass/metal containers are removed. Any sealed container becomes a pressure vessel when exposed to temperatures exceeding 1000°c. These will explode and do significant damage to the crematorium. This is the same reason why any electrical devices or items with batteries are removed, including most watches, and also pacemakers. When an undertaker asks whether your loved on had any medical implants or pacemakers, this is the reason why.
Glasses often tend to leave a silica residue on the bottom of the cremator which is just awkward to clean up and can build over time. Rubber soles are just incredibly polluting and are often not caught by the many filtration systems. This usually results in a black plume of smoke coming from the chimneys. Also, all metal residues and materials which are collected after the cremation is completed are gathered up and can either be returned to the family (upon request) or else treated and recycled, with proceeds from the recycling going towards a worthy charity." — Flaky_Tumbleweed
11. Scuba or S.C.U.B.A.?
"Scuba is an acronym, standing for self-contained underwater breathing apparatus." — JackCooper_7274
12. Squirrel speed
"Squirrels run faster up trees than on flat surfaces." — sstebbinss
13. Battleships
"Battleships in museums/ on display that are WW2 and later cannot start their engines because they have preservative grease inside in case the Navy has to bring the ship back into service." — Stravata
14. Sharkgevity
"Sharks predate trees." — External_Crazy_6568
"Well duh, they're predators." — Flowcahrt83
15. Code-shifting cells
"Your immune system has at least 1 cell to combat every single infection that could ever exist. Your T-cells are cells that, when created, go through a sort of training phase in the thymus where they are allowed to change their genetic code at random, in order to be able to battle 1 random very specific disease. During this, the body also kills any T-cells that are accidentally adapted to kill human cells. Then the T-cells are sent to lymph nodes, to be found later by presenting an antigen (a part of a pathogen) to it. Basically, you have something for everything in your body, the problem is just finding it, as it takes a good few days for your body to locate the specific one." — Chipperland4471



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.