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Throbbing Drops ZdS#10

Series : Zeste de science

  • Description
  00:04:51  2018  HD 16/9  Color  Sound

The Youtube channel Zeste de science explores all aspects of scientific research, proving that even the most complicated scientific facts can be explained in less than 5 minutes, and that even the most seemingly trivial events of everyday life, if thoroughly studied, can contribute to the biggest technological advances.
Episode 10: What happens to a drop of liquid that meets the surface of another liquid? Researchers in Toulouse conducted an experiment to answer that question. They added a drop of dichloromethane to water, after having put a refractant into both liquids to lower their surface tension. Then they observed the behaviour of the drop: the dichloromethane spread upon the water and started to evaporate, hence lowering its temperature and surface tension, which caused it to throb repeatedly. The result of this experiment could have therapeutic applications, for example by dispensing drugs more efficiently on diseased tissues.

Producer : CNRS Images
Author : BELLO Léa (DIRCOM, CNRS, Paris)
Chief editor : BAKER Nicolas (CNRS Images, UPS CNRS, Meudon)
Director : GOMBERT Christophe (CNRS Images, UPS CNRS, Meudon)
Audiovisual processReal shots. Use of archive images.
Interviews (live sound). Music.
NotesScientific sources :
Véronique Pimienta (IMRCP, UMR CNRS, Univ. Toulouse III - Paul Sabatier)
Jacques Magnaudet (IMFT, UMR CNRS, INP de Toulouse, Univ. Toulouse III - Paul Sabatier)
IMRCP : Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (INC)
IMFT : Institut de Mécanique des Fluides de Toulouse (INSIS)


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Technical Sheet
Item No.6499
PublicLarge audience
Original SupportHD