Books, wallpapers and prints straight from the lab. Digital drops land in your inbox instantly — physical gear ships worldwide. Every order keeps Hank's experiments running.
The best experiments from the channel, worked out in full — the real physics, the numbers, the "wait, that's actually true?" moments. 120+ pages, illustrated. Read on any device.
12 phone + desktop wallpapers: atoms, trajectories, and Hank himself. 4K, ready to set.
3 print-at-home poster files for the desk, lab or classroom wall. A3 & A2 ready.
Wear the question. Atom print, soft heavyweight cotton, unisex. Print-on-demand.
New books, packs and merch — we'll ping you the moment each one goes live. No spam, ever.
Simple, safe, and instant for digital.
The moment you pay, Gumroad emails you a secure download link — no account needed. The files are yours forever, and you can re-download anytime.
Yes. Payment is handled by Gumroad, a trusted global checkout that acts as merchant of record — they process the card, handle tax for your country, and we never see your card details.
Digital items are available worldwide. Physical merch ships internationally via print-on-demand once it launches.
Not happy with a digital download? Reply to your receipt within 14 days and we'll make it right.
