please feel free to ask questions at any time either by typing/speaking up

Do they interact through the media?

is the formation of the central cluster connected to the induced vortical flow?

Could the symmetry breaking in the direction of rotation be influenced by the previous step of centrifugation?

Will the ordering and synchronization be also destroyed by adding surfactants?

is it possible that the nematodes release some kind of surfactant that affects \gamma_lg? This is not unusual e.g. for microorganisms

Is the force produced by the nematodes at the border also equal to the centripetal force needed for the rotation? Could you compare them?

please stay for discussion and questions at the end of the talk. we have 15 minutes set aside specifically for this.

(so if I did not ask your question properly, you will have the opportunity to do so yourself)

Regarding synch model: have you tried to just use a model similar to the synchronising waving sheets by Taylor?

I guess my previous question can be reformulated as: could you decouple in your experiments the size of the drop from its contact angle? I would expect that the force that the nematodes impose on the boundary decreases as the radius of the droplet increases

Thank you for a fascinating talk! I have to leave for another meeting at the top of the hour unfortunately —

thank you Sonya. did you have a question? then we could take it right after this.