everything is borrowed

1.5M ratings
277k ratings

See, that’s what the app is perfect for.

Sounds perfect Wahhhh, I don’t wanna
claudiagray
the-future-now

image

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]

Source: mic.com
science
claudiagray
lucy8675309

OK Tumblr Geriatric Ward, let’s talk about your posture-

image

there are things you should be doing now to prevent yourself from starting to look like 🥀

Why does it matter? Future you would like to avoid the pain, limited motion, and fall risk that goes along with worsening posture.


What’s the focus?

1. Keep the flexibility in your spine

2. Stretch the muscles in the front

3. Strengthen the muscle in the back


Here are some simple things you can do daily while sitting and when you get up to go into the bathroom or the kitchen


Keep the flexibility by doing these repeated movements: 10 repetitions several times a day

image

The goal is to give yourself a double or triple chin. Keep your nose pointing forward, don’t let it tip up or down

image

Thoracic extension- use a chair with a seat back that comes up to the level of your shoulder blades. Try to bend back over the top of the chair without arching away from the seat back and without extending your neck. If the pressure from the top of the chair is uncomfortable you can place a towel there


Stretch the muscles in the front by using a door frame. This one will feel good afterwards

image

If this isn’t enough of a stretch you can do one side at a time. If you have the right arm up step forward with the right foot and turn slightly to the left. Then do it on the other side.

image


Strengthen the muscles in the back by squeezing your shoulder blades together for a count of 10 and then repeating 10 times. You can do this several times a day Hint: Don’t lift your shoulder blades up

image
image

There are lots more exercises for strengthening your back muscles but this is a good starting point and easy to do. I like doing it while driving


Tips:

  • Do the best you can
  • If it hurts stop
  • Envision future you saying thank you each time you do one of the exercises
brightlotusmoon

NOTE: I can do most of these with the cerebral palsy. In fact, a lot of these little exercises are automatically part of my physical therapy. My problem is I already have hyperlordosis, spine arthritis, and cervicogenic headache. These have helped me at least try to have a posture.

becausegoodheroesdeservekidneys

I CANNOT STRESS ENOUGH HOW GOOD THIS ADVICE IS

helpful reminders stretching posture aging
dragonsareawesome123
dragonsareawesome123

“When I showed [Stephen Sondheim] the finished film, he said, ‘You treated me gently and royally, for which I’m grateful,’” says [Lin-Manuel Miranda]. “And then he wrote me and said, 'But the last phone message to Jon, the language feels a little trite. I don’t feel like I would ever really say that. Can I rewrite it?’ I was like, 'Gosh, a rewrite from Stephen Sondheim — do I accept this?’”

There was only one problem — [Bradley Whitford] had already wrapped his work on the project and was unavailable to re-record it. Sondheim offered to record the new version for Miranda, and it’s his voice that audiences can hear in the final cut.

“It makes me weep to even think about,” gushes Miranda. “Because he was such a mentor to Jon and generations of songwriters. But yes, he rewrote that message and recorded it himself and just sent it to me." (x)

tick tick boom stephen sondheim lin-manuel miranda