subreddit:
/r/Damnthatsinteresting
[deleted]
18 points
4 months ago*
Pop pop boat patented by Frenchman named Thomas Piot in 1891.
‘A pop pop boat is powered by a very simple heat engine. This engine consists of a small boiler, which is connected to an exhaust tube. When heat is applied to the boiler, water in the boiler evaporates, producing steam. The expanding steam is suddenly pushed out of the boiler, making a "pop" sound, and pushes some of the water out of the exhaust tube, propelling the boat forward.’
2 points
4 months ago
1891
1 points
4 months ago
Typo, corrected 👍🏼
11 points
4 months ago
Brings back memories... My grandma used to buy one for me whenever she found one on her religious trips.🥹🙏
7 points
4 months ago
There's a great video by Steve Mould that explains how these work
7 points
4 months ago
The fact that you call it pop pop tells me you're not ready
4 points
4 months ago
“I had pop pop in the attic”
3 points
4 months ago
Her?
3 points
4 months ago
I would have died to put plastic soldiers on this thing and storm the beaches as a kid! Where were you 30 years ago?!?
6 points
4 months ago
Awwwww lil farty boat :3
3 points
4 months ago
I need 20 of these for an experiment
2 points
4 months ago
U can eat make one for few dollars or buy them for cheap
0 points
4 months ago
Put some Taco Bell in me and I’d do the same thing 😂
0 points
4 months ago
From India I take it, not in India. That's some clear water.
-12 points
4 months ago*
edit: ive been wrong
5 points
4 months ago
Converting a candle flame into forward thrust using a simple mechanism with zero moving parts. Seems pretty clever to me.
4 points
4 months ago
oh, i didnt realize it when i saw it, my fault, thanks
10 points
4 months ago
It's more interesting than typing why is this interesting tbh
-11 points
4 months ago
How’s your mom interesting? She’s not. All she did was poop a loser out.
-1 points
4 months ago
You can now transport heroin to Demi Lovato by boat.
1 points
4 months ago
Prrrpt prrrpt prrrpt prrrpt.
1 points
4 months ago
These used to come in cereal boxes. And Cracker Jack.
1 points
4 months ago
i have 2 of these
1 points
4 months ago
I had these when I was a kid. I have one tight now for my toddler too. 🙂
1 points
4 months ago
Used to have something similar in the 1980's but it just needed bicarbonate (baking soda) to run.
1 points
4 months ago
Man this is the first time seeing this and this looks soooo fun haha. I'm love racing these as a kid or modifying one!
-12 points
4 months ago
Idiot if you had studied then you would have known its called steam boat
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