Were there no 2nd and 3rd places?
A thought for @flegendre whom I am sure did not disappoint.
Yes!!!!! A big hello to @flegendre who will post us his model so that we can admire the design and the work.
Kind regards
If I had had the opportunity but especially the skills to participate, I think that as a fun, educational concept (or almost) and with an ecological note, I would have made a flower that withers in case of excess CO², and that blooms with an acceptable level. If I say "almost" pedagogical, it's because in reality a plant feeds on CO², so logic dictates that it withers in the absence of CO². The problem is that this logic would be counterproductive since the flower would only be open in case of excess, encouraging rather to reach for it to admire an open flower...
Anyway, I would never have done it in 2 hours! One day I may dedicate time to this project.
@Sylk , it was the best idea but already made by a previous competition on the same theme.
Thank you @Zozo_mp, frankly in 2 hours it was not easy and my weak point on this event was the lack of training on X-shape (which was imposed for part of the event) in addition to SolidWorks.