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The man with 1,000 Klein Bottles UNDER his house - Numberphile

30 videos recommended on HN
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8 HN users recommended this interview8 months2015–2024 score 9.5
Years with an HN recommendation, 2007–2026

HN commenters love Cliff Stoll's earnest, playful personality and point to this as a delightful look at his unusual warehouse.

Numberphile visits Cliff Stoll, the man behind ACME Klein Bottles, and sees how he stores a thousand glass Klein bottles in a crawlspace under his house. A remote-controlled forklift fetches them.

“Cliff is an amazing person. Just a joy!” (HN, 2020)

3 strong recommendations · 5 recommendations · 6 citations · Interviews

14 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@joshschreuder Aug 2016 Strongly recommends
on HN thread Ask HN: What book have you given as a gift?
I thought I recognised the name... turns out Cliff is the guy from the Numberphile videos who loves klein bottles. He is such an enjoyment to watch. [this video]
Cliff Stoll is delightful to watch.
@Balgair Aug 2020 Strongly recommends
on HN thread Being OK with not being extraordinary
Cliff is an amazing person. Just a joy! Every time I see him on Numberphile , my life is made better. [link] [this video] P.S. Cliff, we know you're on HN. Please continue being yourself, it seems like a really great person to be!
Cliff is a joy to watch.
@fsckboy Jan 2024 Strongly recommends
on HN thread The KGB, the Computer and Me – The Cuckoo's Egg Story (1990) [video]
this numberphile/Cliff Stoll video is on a different topic, klein bottles... or maybe more the travelling salesman/knapsack problem, but it's a must see. Cliff is a cool guy (whose geewhiz excitement I can only take in small doses but) he's worth following [this video]
Must-see Numberphile video with Cliff Stoll.
@jacobolus Jun 2019 Recommends
on HN thread Get an Acme Klein Bottle
To learn about the operation, watch the Numberphile video, “The man with 1,000 Klein Bottles UNDER his house” [this video]
Explains the Klein bottle operation.
@garaetjjte Jan 2021 Recommends
on HN thread Running a fake power plant on the internet for a month
Everything this guy does is hilarious and entertaining. See later talk about this event: [link] And he drives RC forklift under his house to store Klein bottles he's selling! [this video]
Entertaining RC forklift storing Klein bottles under his house.
@superice Feb 2024 Recommends
on HN thread Acme Klein Bottle
If you don't happen to have the time to visit him, here is a playlist of videos Numberphile did on Klein Bottles, his basement warehouse, the intrinsic curvature of pizza, and a whole bunch of other interesting things: [this video]
Playlist of Numberphile videos with Cliff Stoll.

Citations, criticism and jokes

@EvanAnderson Apr 2017 Cites it
on HN thread Acme Klein Bottle
Numberphile did a video a couple of years ago that featured the forklift in question: [this video] Cliff is a really neat guy. I met and talked to him briefly once (at Dayton Hamvention, 20ish years ago). He's a really, really nice guy.
Features the forklift in question.
@loco5niner Aug 2020 Cites it
on HN thread Being OK with not being extraordinary
> Of course, these days, he's the best dang Klein bottle glass blower in the game. And of course, he hires out the manufacturing. That's why he has (an awesome, little) warehouse under his hour full of them. [this video]
Shows the little warehouse full of Klein bottles under his house.
@jacobolus Dec 2020 Cites it
on HN thread Earnestness
> Earnestness, for example, is pretty far away from my conception of "playful" or "flirty" or even "fun". Cliff Stoll is the most earnest person I have talked to in the past year, and also one of the most playful and fun. See e.g. [this video] I think you have a non-standard personal definition of “earnest”. As I understand the words, earnestness and playfulness are completely orthogonal/unrelated attributes.
Example of earnest and playful person.
@JshWright Dec 2021 Cites it
on HN thread 4D Toys: Klein Bottles
No discussion of Klein bottles would be complete without mentioning Cliff Stoll's Acme Klein Bottle company. [link] His warehouse is pretty unique: [this video]
Shows his pretty unique warehouse.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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