Here is the list for the 2020 session :

The whipCORVO TiagoDELORY Alexandre
Cutting Roast-beefREISS Corentin
Sticky Climber FAIDHERBE AppollineMARTIN-FOURNIER Nathan
Folding by stretchingLORAND TanelPOYDENDT Florian
The size of a Splat ballCHAUB ArnaudLENAVETIER Théo
Oak or reedVANNIER Jean-BaptisteKOPECZ-MULLER Caroline
Empilement de cubesMOUET Valentin SEGUIN Julie

It is interesting to have a specific problem in mind when learning about a new subject.

We therefore ask you to work (together with a colleague) on a research project (see a list below) in parallel with the class. You will progressively apply concepts from the class to your problem.

We will be availalbe for discussions, and help you think about simple experiments.

At the end of the class, you will give a short presentation of your work to all students, as part of the examination for the class.

Here is a list of projects that we suggest :

  • What are the conditions for whip cracking ?

  • What is the dynamics (speed) of a  safety band wrapping ?

  • How to cut a well shaped roasbeef slice ? (a soft material deforms when cut)

  • How fast can you strike a golf ball?

  • Sticky climber man competition

  • What is the height of a « solid siphon » for a chain of beads?

  • Can we explain why does this flat strip (with grooves) folds into a cylinder when under traction?

  • What is the highest pile of cubes?

  • Why does Kamifusen (Japanese ball) inflate when bouncing?

  • What are the condition for a paper popper to make noise?

  • What is the sticking diameter of a splat ball ?

  • Oak or reed : which one breaks first in a storm?

  • What is the maximum height an M&M can fall (without breaking) ?
  • Why is that so hard to open a packaging ?
  • How do spider webs stick to walls?


    • What is the wind speed over which an umbrella accident can occur?

    • What is the landing dynamics of a snake?
    • The mowing of wheat: cutting or bedding?

    • Is it good to have a flexible fishing rod?

    • How long does it take for a inverted cap before jumping ?

    • What is the bouncing height for water beads?

  • How should captain Haddock shake his finger to debond the band aid?