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SUN

#self reblog #wow #8k #thanks i guess xD

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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]

Smooch 💕

#fanart #my art #me and my mom #doodle #idk why #i just love my mom so much

ashawol-deactivated20240605

me @ shinee

made this self portrait today, for absolutely no reason

#fanart #my art #self portrait #gif #jazz handssss

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comme des garcons

#fanart #shinee #kim kibum #shinee key #comme des #garcons #face #kpop #my art #forever yours #its been so long since i've drawn anything omg #trying yet another style #cannot draw dogs #pls help #they don't look like dogs im so sorry

redrevluv

It’s beginning to look a lot like Christmas 🎄

jinkir

SHINee x text posts 1/?

ashawol-deactivated20240605

SHINee ♛ Jonghyun’s Blue night radio

catchymemes

Life of Crocodile

via https://imgur.com/gallery/mG5O6pR

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dualvoidanima

‘fun’

dailyfrogs

FROG STICKER GIVEAWAY!!!

Hey! It turns out that the printing company I got these lovely, glossy coated vinyl stickers from gave me more than I ordered, so I’m giving away some stickers!

First prize: 6 stickers

Second prize: 3 stickers

Third prize: 1 sticker

Reblog to enter in the contest! I’ll be choosing randomly.

This giveaway only applies to my followers since it’s also a way for me to thank them for all the follows! Wowie! Everyone else, feel free to follow too if you want! I post lots of frogs, so if you like those, you’re in luck!

I’ll ship internationally as well!

Giveaway ends December 12th, 2018 at 12:00 AM EST. See you then!

If you’d like to buy some stickers now, you can find them at my store for a dollar! https://frogpad.storenvy.com/ EDIT: SOLD OUT/STORE CLOSED

dailyfrogs

giveaway ends tomorrow!

seekerofrelief

#im in deep trouble :-)#two exams next week #only just started studying ;;;

2min2cute

#shinee #fanart #my art #kpop #shinee taemin #lee taemin #shinee minho #choi minho #shawol #ot5 #2min #smtown #holding hand #holding hands #actually adorable i can't with them

my grandma bought me some new clothes <3

#fanart #my art #clothes #my adorable grandma is an online shopping addict #but the outfits are actually cute xD #not kpop #self portrait #kinda #i wanna dye my hair to ash brown

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Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.

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181030

#fanart #inktober #i didnt post the last few days on here woops #howl #howls moving castle #sophie #ghibli #howl the heartstealer

breadonearth

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