| | N-Wheeled Vehicles (douglas-self.com) |
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80 points by jfil 12 days ago | past | 15 comments
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| | Monowheels: Vehicles with Insufficient Wheels (douglas-self.com) |
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92 points by KolmogorovComp 13 days ago | past | 68 comments
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| | The Brennan Gyro-Monorail (douglas-self.com) |
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1 point by mikestew 3 months ago | past
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| | Acoustic Location and Sound Mirrors (2004) (douglas-self.com) |
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31 points by tomcam 4 months ago | past | 10 comments
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| | N-Wheeled Vehicles (douglas-self.com) |
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2 points by ggoo on April 9, 2022 | past
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| | The Museum of Retro Technology (douglas-self.com) |
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3 points by DMell on March 30, 2022 | past
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| | The Museum of RetroTechnology (douglas-self.com) |
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2 points by penneyd on Jan 6, 2022 | past
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| | Thermo-Electric Generators (douglas-self.com) |
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46 points by basicplus2 on Dec 12, 2021 | past | 25 comments
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| | Unusual Locomotives (douglas-self.com) |
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118 points by ggoo on Oct 29, 2021 | past | 42 comments
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| | The Brennan Gyro-Monorail (2015) (douglas-self.com) |
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1 point by _Microft on May 23, 2021 | past
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| | The Gallery of Electro-Mechanical Amplifiers (douglas-self.com) |
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1 point by highspeedbus on May 15, 2021 | past | 2 comments
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| | Unusual Internal-Combustion Engines (douglas-self.com) |
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3 points by cialowicz on April 11, 2021 | past
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| | N-Person Bicycles (douglas-self.com) |
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2 points by CoffeeOnWrite on Oct 23, 2020 | past
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| | Pneumatic Networks (douglas-self.com) |
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2 points by lukeholder on Jan 8, 2020 | past
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| | N-Wheeled Cars (douglas-self.com) |
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160 points by ivolimmen on April 30, 2019 | past | 58 comments
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| | The Paris Compressed-Air Power Network (2018) (douglas-self.com) |
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157 points by camtarn on April 29, 2019 | past | 35 comments
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| | Optical Telegraphs: An Early Internet (2018) (douglas-self.com) |
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29 points by camtarn on March 25, 2019 | past | 2 comments
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| | Optical Telegraphs: An Early Internet (douglas-self.com) |
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1 point by camtarn on March 20, 2019 | past
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| | The Paris Compressed-Air Power Network (2018) (douglas-self.com) |
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25 points by camtarn on March 20, 2019 | past | 4 comments
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| | The Paris Pneumatic Clock Network (2018) (douglas-self.com) |
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142 points by Luc on March 20, 2019 | past | 33 comments
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| | Acoustic Location and Sound Mirrors (2004) (douglas-self.com) |
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43 points by spking on Dec 29, 2018 | past | 4 comments
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| | The Auxetophone and Other Compressed-Air Gramophones (douglas-self.com) |
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2 points by EamonnMR on Dec 8, 2018 | past
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| | The Museum of RetroTechnology (douglas-self.com) |
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49 points by tomatotomato37 on Aug 27, 2018 | past | 13 comments
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| | Acetylene Engines (douglas-self.com) |
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1 point by aurhum on Jan 3, 2016 | past
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| | The Tower spherical steam engine (douglas-self.com) |
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2 points by thisjepisje on Dec 11, 2014 | past
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