heard yer whole crew got thirsty @joifatone - Tumblr Blog

“bitch we both working”

Love how many people in the tags like ahhh police = shoot innocents, when the show it’s from legit spend episodes tackling racial profiling, wrongful arrest and gun control, do your research before you blindly comment dummies.

blackfemmejeanvaljean

siri what is falling for propaganda?

the-future-now-deactivated20170

Watch: Carl Sagan schooled B.o.B. on his flat Earth theory more than 30 years ago

Follow @the-future-now

micdotcom

🐸☕️

trashboat

bipch erastosthenes schooled b.o.b. 2,230 years ago

luckyladylily

Ok so this is cool but I always wondered how they knew the shadows were different at the same instant. I mean it is not like they had phones. How did they sync up that instant. I feel like that would be interesting to know but no one ever says.

when-it-rains-it-snows

^^^Does anybody know this one? How, that far apart, the time at which the shadows were observed was synced up? I am genuinely curious, not a goddamn moron asking a gotcha question. High/Low tide? (I live in the middle of the country I do not know for the precise habits of tidal activity.) The appearance of a star (or planet) in the sky? Something as utterly mundane as sunrise?

kerosenekate

Well, first of all, it wasn’t actually pillars! Eratosthenes was told about a well in Syene that, in the summer solstice every year (June 21st) would be illuminated at the bottom entirely and without any cast shadows. This indicated that the sun was directly overhead. Going off that well known curiosity and an intelligent hunch, our dude Eratosthenes waited until high noon of the summer solstice to measure the angle of a shadow cast by a stick in Alexandria. (Sidenote: Eratosthenes was a librarian of the infamous Library of Alexandria.)

His next course of action was to hire bematists, surveyors of the time whose professional specialty was to measure distance by walking with equal length steps. They measured a distance between Alexandria and Syene of about 5000 stadia. (Guess where the word stadium comes from.) Once he had that measurement, Eratosthenes did his math-y thing, and there you have it.

when-it-rains-it-snows

ANSWER EVEN COOLER THAN I HOPED!!

cellarspider

Eratosthenes’ work was thorough enough that by the time he finished revising his calculations, he ended up only 66 km off of the actual polar circumference of the Earth, or an error margin of 0.16%. [wiki]

taraljc

I am picturing a dude handing another dude one end of a ball of twine and starting to walk and count and I know that’s not how they counted steps but in my head it is and it’s hilarious

shiftythrifting

ah yes i was looking for a soap dispenser labeled “ketchup” with a picture of grapes

artenega

I really want this bottle in my bathroom. I’d place it next to matching decorative soaps and towels as if it seems like it fits, but I’ll actually fill the thing up with ketchup. So when I have guests over and they decide to use the bathroom, they will see this bottle and have a moment of cognitive dissonance, “This [Soap Bottle] in the [Bathroom] is labelled [Ketchup], so surely it must dispense [Soap] instead of [Ketchup] despite the label saying [Ketchup] right?” and then let them have a moment of realization followed by abject horror as they pump viscous ketchup all over their hands instead of soap

averruncusho

This. This is my dream.

spectraspecs-writes

I think even better would be to fill it with soap that’s red, bc ketchup may spoil after a while if left unrefrigerated and exposed to air. But having red soap in there, esp if it’s super thick, would send the user into crisis mode.

averruncusho

Spects you’re a genius