Inquiry Q by https://padlet.com/817696/ntj1iq4gmfi3 Helicopters and Flying MAchines en-us 2018-06-12 21:33:01 UTC 2018-06-12 21:40:34 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Clouds.png What if Leonardo Da Vinci Never Designed the helicopter/flying machines? 817696 https://padlet.com/817696/ntj1iq4gmfi3/wish/266904915 2018-06-12 21:37:24 UTC https://padlet.com/817696/ntj1iq4gmfi3/wish/266904915 Well Leonardo didn't exactly in 817696 https://padlet.com/817696/ntj1iq4gmfi3/wish/266905291 2018-06-12 21:40:34 UTC https://padlet.com/817696/ntj1iq4gmfi3/wish/266905291