An electricity generator inspired by the drinking bird toy powers electronics with evaporated water

 https://techxplore.com/news/2024-03-electricity-generator-bird-toy-powers.html

"triboelectric hydrovoltaic generator outputs exceeding 100V, operates several days using 100 mL water... pressure difference causes bottom bulb's (of 2) fluid rise through tube until head full, causing bird dip forward into water containing methylene chloride before starts again... 2 triboelectric nanogenerators on both sides of drinking bird engine... powered 20 LCDs,... overcame friction by affixing patterned fibers as charge transfer materials in triboelectric nanogenerators... kit also includes temperature sensors, calculators"