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Throbbing Drops

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)
Identification
Audiovisual processReal shots. Use of archive images.
Interviews (live sound). Music.
(ONLINE)
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Discipline

Physics

Places  

France

Technical Sheet
Number6499
PublicLarge audience
Original SupportHD
VersionFrench
Ark Identifier