Description
Grain's spinning Pop Pop Boat
Previous videos of this boat
Spinning Pop Pop boat with Meths Lamp https://youtu.be/f8osN8no1-A
Grain's video https://youtu.be/fBGlfE20wN4?t=73
Spinning Pop Pop boat type thing https://youtu.be/BlZO3Zn_mWc?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
Three Pop Pop boats in a glass bowl https://youtu.be/JU59eMZJ_qk?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
Single Pipe no Boiler Pop Pop Boat - proof of concept https://youtu.be/aILqpJauLW4?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
Small coil pop pop Fillets of Anchovies tin PART 1 https://youtu.be/rtPzTTGFEoI?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
Small coil pop pop Fillets of Anchovies tin PART 2 https://youtu.be/i9Zc33gdrbM?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
Main Components
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Aluminium tube
Candle or tea light
BluTack
Scrap foam
New components
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Methylated Spirits
Small aluminium canister
Paraffin lamp wick
Some history on Pop Pop boats you look at this Wikipedia link on the subject http://en.wikipedia.org/wiki/Pop_pop_boat they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot.
Steve Mould's excellent "explainer" video - Pop-Pop Boats Are Weirder Than You Think https://youtu.be/3AXupc7oE-g
OLD explanation on HOW DOES IT WORK?
Water in the boiler is turned to steam. The steam has a greater volume than the water so it pushes out of the boiler and down the tube. In the tube it cools, condenses and contracts so it is drawn back into the boiler and the process repeats. The action of the steam pushing into the tube pushes the existing water in the tube out the back and that drives the boat forwards. The steam condensing and contracting draws water back into the tube ready for the next push.
If your next question is "why doesn't the boat oscillate backwards and forwards due to this push-pull effect?" try blowing a candle out and then try sucking a candle out and you will see the blow is fairly directional but the suck is not.
Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009 https://youtu.be/4Tzhwfit6eU
Pop Pop boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
RC Pop Pop boats https://www.youtube.com/playlist?list=PL-by_jO_6em9N_D_NRdDPmEaSxPDNzbZr
Here is the link to DaveHax tutorial which I found excellent https://youtu.be/0ki9Kta8g14
sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here https://youtu.be/2ZF0mjruAxM
Here is a good video on tweaking the speed of these boats https://youtu.be/P2sbSK79e4g
This link that explains the general annealing process without getting too technical http://steamshed.com/annealing%20process.html and here is a YouTube video on the subject by George Goehl https://youtu.be/3jSz11lz8MA
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