Posts from year 2019 August 2 — Continuing the Saga: On Delta Sails, The Atalanta Butterfly and Freak Waves ( (2019) June 21 — DIY-Ornithopter RC-Flight ( (2019) JanuarySundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031FebruarySundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728MarchSundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031AprilSundayMondayTuesdayWednesdayThursdayFridaySaturday010203040506070809101112131415161718192021222324252627282930MaySundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031JuneSundayMondayTuesdayWednesdayThursdayFridaySaturday010203040506070809101112131415161718192021222324252627282930JulySundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031AugustSundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031SeptemberSundayMondayTuesdayWednesdayThursdayFridaySaturday010203040506070809101112131415161718192021222324252627282930OctoberSundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031NovemberSundayMondayTuesdayWednesdayThursdayFridaySaturday010203040506070809101112131415161718192021222324252627282930DecemberSundayMondayTuesdayWednesdayThursdayFridaySaturday01020304050607080910111213141516171819202122232425262728293031