Vivapoly 2014, Results Of the Catapult Contest


As with every year, Vivapoly is an opportunity for EPFL Alumni to organize a major contest for students of the School. Then it is up to them to take on a technical challenge that requires a little imagination.

Thus, for the 2014 edition, EPFL Alumni and Debiopharm suggested that students build a catapult to throw a water bomb – more precisely, they were instructed to build a catapult of 250 g, maximum, capable of projecting a 2.5 dl water bomb as far as possible.

In all, twenty teams showed up with catapult in hand. After verifying that they did not exceed the permitted weight, throws could begin. For nearly two hours, the teams took advantage of the two trials that were offered to test their installations. Some water bombs did not make it past the table on which the catapult rested, while others flew more than twenty meters.

The prize for the most original name was given to the catapult, “CATA: Cheap Apocalyptic and Temporary Appliance,” from Gregoire Surrel and Maxime Thammasack (Master’s thesis, STI).

See below all the results and photos.

Thank you to all the teams for their participation in this fun event!


Gagnants-250 Cata-1_250

Premier prix: Charles Lambelet (MT, 4ème Master) et Michael Gassner (MT, 4ème Master) dont la catapulte a réussi à envoyer la bombe à eau à 22 m 86.

2eme-2500 La deuxième place revient à David Moy de Vitry (GC, 2ème année), dont la catapulte a envoyé le projectile à 19 m 98.
3eme-2500 En troisième position, Yacataroser, la catapulte de Jonas Grossenbacher (STI-IMT phd) et Diego Joss (STI-IMT), qui a envoyé sa bombe à eau à une distance de 13 m 92.

Découvrez tous les résultats du concours