If you're new to Now I Know, you'll notice that today's format is different than the rest of the week. On Fridays, I take a pause to write the "Weekender," my  "week in review" type of thing, or to share something else I think you may find interesting. Thanks for reading! -- Dan

Help Me Share Now I Know

Hi!

I’m really excited to share something new today: a way for me to give you something cool for sharing Now I Know with some friends. One of the reasons I switched from Mailchimp to beehiiv is because beehiiv makes this super-simple. Here, I’ll show you!

See? Easy. For now, the only reward I have set up is a signed copy of one of my books, and it comes with a couple of caveats. First, because I don’t have all that many books to give out, I’m asking you to refer 20 friends to earn that reward. Yes, it’s a lot, but again, I don’t have that many books! And second, I can only send you a book (for now) if you’re in the U.S. or Canada — postage elsewhere makes sending the book prohibitively expensive.

But again, this is all just for now. I’d love your feedback on what else I could offer! Here’s a quick poll, and if you vote in it, you’ll have the opportunity to write a comment with more context or more ideas. Or you can just reply to this email and let me know, too.

I’m going to be adding the referral box above on the bottom of most emails going forward — no need for you to come back to this email to do it.

Thanks so much! I hope this thing works 😃 

The Now I Know Week In Review

Monday: When Milwaukee Went to War Over Bridges: And why it has some crooked ones as a result.

Tuesday: Math and the Missing Planet: How Uranus found Neptune.

Wednesday: Why Did This Rabbit Drive a Car?: I mean, do you need a reason to click this one? A rabbit in a car?

Thursday: Nazca Lines: Ancient artwork, but how did they make it?

And some other things you should check out:

Some long reads (and a podcast episode!) for the weekend:

Have a great weekend!

Dan