Living in a fairytale 🌸💐🧚🏼🦄🧚♀️🧚♂️
RMH
almost home
todays bird

tannertan36

PR's Tumblrdome
NASA

shark vs the universe

roma★

#extradirty
Stranger Things

pixel skylines
Cosimo Galluzzi
"I'm Dorothy Gale from Kansas"

izzy's playlists!

祝日 / Permanent Vacation
sheepfilms
Monterey Bay Aquarium
YOU ARE THE REASON

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Alisa U Zemlji Chuda
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@themoon-and-rock
Living in a fairytale 🌸💐🧚🏼🦄🧚♀️🧚♂️
Beautiful~
✨ source : pinterest ✨
✨source : pinterest ✨
Take care of yourselves everyone 💚🏳️🌈
hey, we’ll be ok
Watch: Carl Sagan schooled B.o.B. on his flat Earth theory more than 30 years ago
Follow @the-future-now
🐸☕️
bipch erastosthenes schooled b.o.b. 2,230 years ago
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.
^^^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?
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.
ANSWER EVEN COOLER THAN I HOPED!!
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]
I have discovered the truth about chainmail bikinis, and it is imperative those wearing such armor do not think about it too hard or they may inadvertently cross the line between Sexy Hero and Homicidal Pervert.
I like the implication that this is some ratty rooftop or back alley lot or something that sees so many semiconcious badasses bleeding out someone felt the need to put up a motivational sign.
och monika
Hi. Things are bleak, I know that. I know that we paid for Trump's last term with blood and it is likely the price will be blood again.
But listen to me. LISTEN.
You do not have to force yourself to witness horrors as an act of activism. It is not a form of activism. You can put your phone down, you can block that horrific video. We cannot win if you cannot fight and you will not be able to fight if you are hopeless.
Do not let them guilt you into this. People who are exhausted are easier to walk over. Take care of yourself, find community where you find joy.
You do not have to force yourself to witness horrors as an act of activism. It is not a form of activism.
^^^ remember this. do not exhaust yourself into hopelessness. take care of yourself and stay strong.
I know I've recced it before, but if you want a place to monitor the news while avoiding getting caught in the horrors, What The Fuck Just Happened Today is a really useful resource. They summarize political (& adjacent) news so you can remain aware of what's going on while still minimizing the emotional energy you expend on any one issue. (And they provide links and sourcing if you need to know more.)
The Vibrant Doors of Lisbon
Les Portes Vibrantes de Lisbonne
by angrybaker