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| | A portable, sensitive, low power, analog Geiger counter (2025) (ludens.cl) | | 57 points by crorella 28 days ago | past | 4 comments | |
| | The Color of White Light (ludens.cl) | | 98 points by xk3 32 days ago | past | 50 comments | |
| | Practical Transformer Winding (2010) (ludens.cl) | | 125 points by bearbin on Dec 25, 2021 | past | 36 comments | |
| | The Colour of White Light (ludens.cl) | | 2 points by bearbin on Jan 21, 2020 | past | |
| | The OS-Graupner Wankel Engine (ludens.cl) | | 3 points by GordonS on June 3, 2019 | past | |
| | A home microhydro plant (2009) (ludens.cl) | | 464 points by fanf2 on June 2, 2019 | past | 87 comments | |
| | The microhydro plant (ludens.cl) | | 2 points by deegles on Aug 22, 2016 | past | |
| | The throw-away society (ludens.cl) | | 1 point by ireflect on Dec 30, 2013 | past | 1 comment | |
| | The microhydro plant (ludens.cl) | | 557 points by makmonty on Dec 12, 2013 | past | 116 comments | |
| | DIY Micro Hydro Plant (ludens.cl) | | 2 points by ruediger on Feb 10, 2012 | past | |
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