PEOPLE OF PORTLAND, OREGON: I will be in your town soon at Revolution Hall to discuss tuberculosis and other matters as part of WorldOregon. I am so excited. Tickets are available here; etix.com/ticket/p/34938…

Is it just us, or is this year's CrashCourse coin the coolest one yet? Of course the coolest part is that each one helps us reach thousands of learners all across the globe.

Get yours before they're gone! complexly.info/cccoin24-9

If you enjoyed that Conference League final, have I got a football league for you.

In 2012 my brother had a ridiculous idea that YouTube videos could be not just educational, but they coul dbe created specifically as a tool for teachers and students.

Not only would that maybe be popular (he argued to me) it would also just be good for the world.

Since 2012, Crash Course has produced more than 50 series made up of over 1500 videos, educating hundreds of millions of viewers around the world — without charging them a single penny.

If you have been in high school or college in the last 10 years, did you use Crash Course?

Are they signing ... Hank and me?

Any passing in F1 today? bc we had some. #INDY500

Brief Reversal of Fortune on the bike ride home but still a great 15 hour race day. Thanks to everyone who said hi. And thanks to the speedway and J. Douglas Boles for steady and transparent communication through a challenging weather day. Love this town. #INDY500

Anyone who didn’t love Pato O’Ward does now. What a racer.