Ever heard of “hitting the wall” during a marathon? This is what happens when your body runs out of stored energy, and your brain goes into protection mode. Here’s exactly how it happens! 🧠 We’re revisiting this @okaytobesmart where @drjoehanson runs a marathon! Have you ever “hit the wall”? Share with us in the comments! | PBS Digital Studios

PBS Digital Studios turns 10 years old this year! 🥲🥳 We couldn’t have lasted this long without the support of all our amazing fans. To celebrate, we asked our creators and staff to reflect on the past decade with us. Here’s what they had to say... #PBSDS10 | PBS Digital Studios

96K views · 27 reactions | On April 10, 2019, astrophysicists from the Event Horizon Telescope collaboration electrified the world with the first ever image of a black hole. How did that happen? Joe Hanson from It's Okay to be Smart • PBS shows us how it took telescopes working together all over the world to make it happen. | PBS Digital Studios | Facebook

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PBS Digital Studios wants to hear from YOU. We do a survey every year that asks about what you’re into, your favorite PBS shows and what you’d like to see from PBS Digital Studios. You even get to vote on potential new shows! All of this helps us make more of the stuff YOU want to see. The survey takes about ten minutes, and you might win a sweet T-shirt. Thanks! FIND IT HERE: https://www.pbsresearch.org/c/r/PBSDS_FB_Insta | PBS Digital Studios | Facebook

416K views · 122 reactions | It's the age-old debate: The Book vs The Movie. Is the book always better than the movie? Can an adaptation ever live up to the story formed in your head? Check out the first episode of It's Lit! and make sure to follow Great American Read • Watch Episodes • PBS for future episodes! | PBS Digital Studios | Facebook

5.1M views · 1.4K reactions | How do you take copper wire, a battery and magnets and make electric train? With science! This super simple DIY physics demo uses electromagnetic induction to propel a train made of magnets and batteries. Physics Girl explains the science behind the train in this video -> https://youtu.be/9k7zywli4Vg | PBS Digital Studios | Facebook