Phantastic Physics presents: a 37-page comic you can print at home. $17, instant download.
A comic book, with real physics

My Cat Joined a Flat-Earth Group. It Has Notes.

My Cat Joined a Flat-Earth Group: the cover, an orange cat with a stack of Planet Pancake papers

I left my laptop open. Now my cat runs a flat-Earth investigation from the sofa. 37 pages, one smug orange cat, 15 flat-Earth claims, and a real check for every one of them. No lectures. Just a cat, slowly losing.

15 claims
+
15 checks
=
1 annoyed cat
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Just $17
30-Day Guarantee Instant Download One-Time Payment
What's Inside

37 Pages. Six Parts. One Ending the Cat Didn't See Coming.

Read the story first. Every claim the cat makes gets checked on the same page, with a drawing and a quick test you can try. Then play the game, print the cards, and keep the lines for your next family dinner.

The Story
Pages 2 to 20
The cat joins Planet Pancake
15 claims, 15 real checks
One surprising ending
15 drawings
one per claim
Try It at Home
Pages 21 to 23
The kitchen-table shadow test
A safe sunset check
Measuring the North Star with your fist
15 tests
a key on a string, a phone flashlight, an orange
Real Humans
Pages 24 to 29
What to say to your uncle
Replies to common claims
How to leave a thread you can't win
6 pages
for when it isn't your cat
The Game
Pages 30 to 32
Can you out-argue the cat?
8 rounds, 2 or more players, about 15 minutes
Answer key and a bonus round
8 rounds
0 to 3: the cat wins
Pocket Cards
Page 33
A fridge card: "The Short Version"
A wallet card: "When someone says Earth is flat"
Print, cut, fold, keep
2 cards
good to hand out before family dinners
The Sources
Pages 34 to 36
37 sources
Each with a clickable link
So you can check us too
37 links
the physics is real
Lauren and Shawn on the sofa with the orange cat
Lauren & Shawn
A Note From Us

He Teaches High School Physics. I Left My Laptop Open. The Cat Did the Rest.

Phantastic Physics is the two of us. Shawn teaches high school physics and films the lessons. I run everything else, including the comments section, where half of every thread under an Earth-shaped post is flat-earthers and the other half is people arguing with them.

We wrote this for the second half, and for anyone with a flat-Earth uncle. Not a lecture. A story about a cat who joins a group called Planet Pancake, with the real physics on every page and a check you can run yourself. The cat and its group are fictional. The physics is real, and every claim comes with a source you can click.

At checkout there are no add-ons and nothing to upgrade. You pay $17, you get the PDF, and the cat gets a formal complaint on file.

15
Claims
37
Pages
1
Stubborn Cat
Take a Look

Inside the Comic

Swipe through. Read it on a phone, or print it and put the cat on the fridge.

What's inside: the page map and the 15 claims, checked Every claim gets a real check: the sunset page, with the Try This test and the Say It at Dinner line Can you out-argue the cat? The 8-round game spread Print it, cut it, keep it: the fridge card and the wallet card The cover

The page map, a claim page, the game, and the pocket cards.

What the Cat Says

The Cat Has Claims. Every One Gets a Check.

Six of the cat's claims, word for word from the game. Each one is a page in the story, with a drawing, the physics, and a test you can run.

The cat"Water finds its level. My bowl is flat. Case closed."
The cat"Zoom brought the boat back, so nothing was ever hidden."
The cat"The Sun doesn't set. It just gets farther away."
The cat"Australia just needs to turn around to see the North Star."
The cat"That space photo was edited. So the round Earth is fake."
The cat"A plate makes a round shadow too. Eclipses prove nothing!"

All 15 Checks, In Order

One per claim, in the order the cat makes them. Each is a page in the story.

  1. 1One idea has to fit every check
  2. 2A tiny piece of a huge ball looks flat
  3. 3"Down" points to Earth's middle
  4. 4Floating and sinking need gravity, too
  5. 5Takeoff doesn't erase Earth's motion
  6. 6Zoom can't see through the curve
  7. 7The top shows. The bottom hides.
  8. 8Go south and the North Star sinks
  9. 9Two shadows don't settle it alone
  10. 10Far away is not the same as setting
  11. 11Earth's shadow on the Moon is round
  12. 12Gravity holds the air. No lid needed.
  13. 13Same trip, very different distances
  14. 14The Sun circled the whole sky
  15. 15Edited isn't automatically fake
How It Gets to You

You Pay. It Prints.

One PDF, in your inbox within a minute. Read it on a screen, or print it, and here is what comes out.

Ready
Page 1 of My Cat Joined a Flat-Earth Group
The Short Version
You pay, and your download link arrives by email within a minute
It also opens on screen right after checkout
One PDF. Phone, tablet, laptop, or printer
Print page 33 at 100% for the pocket cards (page 34 in your print dialog)
Nothing to install, nothing in the mail
Yours for good, no subscription
Get It Today

Less Than a Pizza. Outlasts the Argument.

The Complete Comic, Instant Download

My Cat Joined a Flat-Earth Group

No subscription. No add-ons. No lectures.
$17
One-time payment. Instant download.
One-Time Purchase
37 Printable Pages
Game + Pocket Cards

What's Inside:

  • The full comic story: 15 claims, 15 real checks, and one ending the cat didn't see coming
  • 15 "Try it" tests that use things you already own: a key on a string, a phone flashlight, an orange
  • "Say it at dinner" lines for every claim
  • What to say when it's your uncle and not your cat, plus how to leave a thread you can't win
  • Can You Out-Argue the Cat? An 8-round game for 2 or more players, with an answer key
  • A printable fridge card and wallet card
  • 37 sources, each with a clickable link, so you can check us too
Get the Comic, $17
30-Day Guarantee

Great for curious families, science lovers, anyone with a flat-Earth relative, and cat people with a sense of humor.

30
Day Guarantee

If the Cat Wins, You Pay Nothing

Read it. Try a check or two. If it isn't funny or it isn't clear, reply to your receipt email within 30 days and we'll refund every dollar. No form, no "did you really read it."

Questions

Common Questions

One PDF, 37 pages. A comic story where a cat works through 15 flat-Earth claims, 15 "try it" tests, "say it at dinner" lines for every claim, a section on what to say to real people, an 8-round game with an answer key, a printable fridge card and wallet card, and 37 sources with clickable links.
Written for adults who have a flat-Earth relative, a comment section, or a sense of humor. Kids who like science will follow the story fine; the physics is in plain English and the tests use things you already own. Teachers and homeschoolers: every page pairs a claim with a hands-on check, so it works as a ready-made critical-thinking lesson.
No. It reads on a phone, a tablet, or a laptop. Printing is optional, and the two pocket cards on page 33 are the part worth printing. In a print dialog that is page 34, because the cover has no page number.
The cat and its group are fictional. The physics is real, and every claim comes with a source you can check yourself.
Honestly, maybe not. Pages 24 to 29 cover what to say when it's your uncle and not your cat, and how to leave a thread you can't win. The checks are things you can both look at, which beats arguing.
You pay. Your download link arrives by email within a minute, and it also opens on screen right after checkout. Nothing in the mail, nothing to install.
No. It's a one-time $17 purchase. No monthly charge, no renewal, no add-ons at checkout.
Read it. If it isn't funny or it isn't clear, reply to your receipt email within 30 days and you get every dollar back. No forms.

The Cat Isn't Finished. Neither Is Your Uncle.

Nothing bad happens if you skip this. The next thread goes the way the last one did. Or you spend $17, read the story tonight, and show up to dinner with a fridge card and a sunset check.

Get the Comic,
Just $17

30-day guarantee • Instant download • One-time payment

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