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Spieglein an der Wand
Spieglein an der Wand
bluebiker
(38)
Published in
#mirror
Words
24
Reading
1 min
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Mein Wiedereinstieg -I-
bluebiker ·
9 years ago
chris-chris92 ·
3 months ago
This 1878 Mirror Heats Factories to 400°C With No Fuel and No Running Costs — Why Don't We Use It?...This $18 Chimney Generates Electricity From Heat Alone — No Fuel, No Power...This $8 Volcanic Rock Battery Outperforms Sand — Holds Heat 40% Longer
sadcorp ·
4 months ago
