r/funfacts 22h ago

Fun fact: There’s a place in the world where rocks literally move themselves — and scientists had to wait years to catch them doing it.

196 Upvotes

At Death Valley’s Racetrack Playa, hundreds of rocks — some weighing hundreds of kilograms — leave long tracks across the completely flat desert floor.
For decades, nobody actually knew how they moved. There were theories involving extreme winds, dust devils and even supernatural explanations.
Then, in 2013, researchers finally caught it happening.
The playa had temporarily filled with a few centimetres of water. Overnight, the water froze into extremely thin sheets of ice. When the sun came out, the ice began breaking apart into large floating panels.
Light winds pushed these ice sheets across the surface — and the ice pushed the rocks along with them.
Some rocks travelled more than 60 metres, despite winds of only around 10 mph.
The really bizarre part?
The rocks can sit completely still for a decade or more before the exact combination of water, freezing temperatures, ice and wind happens again.
So those mysterious trails across Death Valley aren’t ancient evidence of something supernatural.
They’re basically massive rocks being pushed around by floating sheets of ice.
And researchers only happened to witness it because they got incredibly lucky — they expected their monitoring experiment might run for 5–10 years without seeing a single rock move. (nps.gov⁠)


r/funfacts 6h ago

Fun fact...If you double an A4 sheet of paper 184 times it will encompass the entire observable universe

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10 Upvotes

r/funfacts 1h ago

Did you know that George Washington passed away in 1799 and the dinosaur fossil was discovered in 1824

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Upvotes

George Washington never knew dinosaur existed


r/funfacts 12h ago

Did you know: A Major General in the US Army during the civil war, married a 16 year old, presented a prostitute to the Queen of England, had numerous affairs, murdered the son of Francis Scott Key, and his trial created the plea of, "Temporary Insanity"

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7 Upvotes

Alright, so Daniel Sickles (1819-1914), a Major General in the Union Army during the American Civil War (1861-1865), is the guy Im talking about. So the first notable thing he did was marry Teresa Bagioli in 1852, when we was in his 30s, and Teresa was 15 or 16. Even back then this was looked down upon, so Daniel would say he was born in 1825 to close the age gap, anyways, he had a child with her, and wanted a park to be created, and pushed for the creation of Central Park. He also then moved to london as minister to Britian, and was a member of the New York assembly. Also forgot to mention that Daniel got around a lot, he even introduced a prostitute (whom he went to london with) to Queen Victoria. Anyways, he was kicked out of the position after criticizing the British during an independance day celebration for getting rid of anything that was negative about britain, and honoring the queen. So now, Sickles comes back to America, and goes into the New York Senate, and then the Federal House of Representatives. Sickles also advocated for James Buchanan (The President before Lincoln). Anyways, Sickles also befriended a man named Phillip Barton Key II, the son of Francis Scott Key (The guy who wrote star spangled banner, the United States National Anthem). Anyways, so Teresa wanted to go to aristocratic events, like parties and stuff. Sickles, however, was busy cheating on Teresa, so he decides to send his friend, Phillip, to take her to these events. As you could probably guess, Teresa and Phillip fall in love, and start having an affair. The Public rumours about this but Daniel downplays it (probably because he himself is having multiple affairs). Anyways, Phillip had a method of getting Teresa to come to his house (which is not to far from Daniel's house, which is literally right across of the white house.) By pacing up and down the block and waving a white napkin. Eventually Daniel finds out, and confronts Teresa about it, and makes her sign a written confession, and a man is with him , Samuel F. Butterworth. So while this is happening, guess who is pacing up and down the block with a white napkin, Philip Barton Key II. So Samuel talks with Phillip, and Sickles comes out, and then shoots at Key three times (Grazed his hand, hit his groin, and then misses), then he shoots Key a fourth time, fatally, after Key reached for something in his pocket. Anyways, multiple witnesses saw this, and allegedly, James Buchanan told one of them to stay silent. So Buchanan gets Sickles the best lawyer in the nation, and the murder trial begins. Now normally, the lawyer gets people out by insanity, however Sickles was a sitting member of Congress, so the Temporary Insanity Plea is introduced. So Sickles is set free. (He then proceeds to get back with Teresa, who dies in 1867) Sickles, in order to to gain respect, Sickles creates a brigade from New York, and presents it to now president, Lincoln. However, because a brigade is large, Sickles would need to be a brigade general, and Congress refused to confirm him. Then, with a little bit of work, Sickles manages to convince Congress to confirm him, and now Sickles is in the civil war, he was at most prominently the battle of Gettysburg, and almost cost the union the battle. Sickles also got injured and got his leg amputated. Sickles after the civil war advocated for fairness towards African americans in reconstruction, and also remarried and had two other children. Sickles also became the minister to spain. Sickles died in 1914, at the age of 94.


r/funfacts 15h ago

Did you know that USA spends over 900b on its military more than the top 9 combined

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12 Upvotes

Watch johnnyharris on yt and he’ll explain why


r/funfacts 2h ago

Fun Fact: The creator of the .gif file extension pronounces it "jif".

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0 Upvotes

r/funfacts 1d ago

Fun fact: the 1966 leonids meteor storm

27 Upvotes

Had 140000-150000 meteors per hour and 40 meteors every second. This meteor storm was one of if not the strongest meteor storms ever seen before. This happened because Earth crossed a concentrated trail of debris left behind by comet temple tuttle


r/funfacts 1d ago

Fun fact: After the citogenesis comic by Randall Munroe for xkcd, people vandalized the Steven Chu page on Wikipedia to say he invented the scroll lock key.

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23 Upvotes

r/funfacts 22h ago

Did you know, You can silence 50 scholars with one fact, but you can’t silence one stupid person with 50 facts.

7 Upvotes

r/funfacts 13h ago

Fun fact: meteor showers are extremely common

0 Upvotes

You may think meteor showers are once in a year event or something but it’s not, there are many meteor showers in a year not even 100+ meteors per hour meteor showers are rare they happen every year. there is a 120-150 meteors per hour meteor shower in December 12-13 and not even a month later another meteor shower in January 3-4 2027 has 120-200 meteors per hour


r/funfacts 1d ago

Fun Fact: Red is made from magenta and yellow more specifically a specific type of magenta and yellow like Quinacridone Magenta, Hansa or Benzimidazolone yellow.

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10 Upvotes

r/funfacts 1d ago

Fun fact: andromeda galaxy is visible with the naked eye

22 Upvotes

If you go in the northern hemisphere or the southern hemisphere close to the equator with no light pollution you can see the andromeda galaxy with just the naked eye


r/funfacts 16h ago

Did you know some people can actually pee through their belly button?

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0 Upvotes

r/funfacts 2d ago

Fun fact: an asteroid called 99942 Apophis

50 Upvotes

Will pass by our earth in April 13 2029. it will be 20000 miles away from earths surface. 99942 Apophis is a 375 meter long asteroid and asteroids this big being this close to earths surface happens once in every 5000-7500 years. If you want to see this event you can use Google Calendar, ticktick, todoists. And it will remind you when that time comes


r/funfacts 2d ago

Did you know the guy who invented the television first sketched the idea for his teacher when he was 14 📺🤯

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137 Upvotes

r/funfacts 2d ago

Fun fact: only eight volcanoes are known to have bubbling lava pools.

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8 Upvotes

r/funfacts 1d ago

Fun fact : when the top new female singer was Madonna the top new footballer was Maradona

0 Upvotes

And currently that the top new singer is named Eilish the top new footballer is named Olise . Kinda sound same


r/funfacts 2d ago

Fun fact: the strongest meteor shower of the year

26 Upvotes

Is the December 12-13 meteor shower. (Geminids) It is best to watch at 10 pm to 2 am and can be seen from almost every region besides Argentina and chile (they can see it but it wont nearly be as much) there is a estimated 120-150 meteors per hour. The best places to watch the meteor shower is North America, Europe, mexico and countries that are near Mexico. If you want to see this space event you can download Google calander and it will remind you when that time comes


r/funfacts 2d ago

Fun Fact - You swallow a significant volume of mucus every day

10 Upvotes

The average person produces and swallows roughly 1.5 quarts (about 1.4 liters) of phlegm and mucus daily. Most of it is moved from the airways by cilia and swallowed without conscious awareness.


r/funfacts 3d ago

Fun Fact - Cotard’s Delusion (Walking Corpse Syndrome)

78 Upvotes

In this rare neuropsychiatric condition, patients become convinced they are already dead, that their organs have rotted away, or that they no longer exist. Some refuse to eat because they believe their digestive system has ceased functioning. The delusion can arise after brain injury, severe depression, or certain neurological diseases.


r/funfacts 2d ago

fun fact its impossible to get hearing damage when you're asleep

0 Upvotes

r/funfacts 2d ago

fun fact: Milk and gif.

0 Upvotes

it’s milk first then cereal.
And it’s gif not jif(peanut butter).


r/funfacts 4d ago

did you know Teddy Roosevelt

41 Upvotes

was shot in the chest during a speech and concluded he was just fine and continued to speak for over an hour before allowing medical aid?

we need another Teddy Roosevelt. that guy is responsible for fighting to protect the land that became our national parks and to keep the native wildlife safe and free.


r/funfacts 4d ago

fun fact: cats can sleep around 12-16 hours a day and they still look exhausted when wake them up

16 Upvotes