France

  

Manelle AJJAJ (18)

City/Region: Gennevilliers
E-mail: Chara_sab@hotmail.com
Hobbies: Travelling, Sciences, Music
Career: Doctor
School: Lycée Galilée
   

Dalila AGRED (18)

City/Region: Gennevilliers
Hobbies: Travelling, Reading, Playing tennis, Writing poems, Music
Career: Doctor
School: Lycée Galilée
   

Guillaume SHIRLEY (17)

City/Region: Villeneuve
E-mail: guillaumeshirley@free.fr
Hobbies: Rugby, Informatics, Internet, Music
Career: Chemist or Physicist
School: High School Galilée

 
Chemical and microbiological analysis of air in Paris

Chemical and microbiological analysis of air in Paris was studied. It was shown that air in a bedroom can contain more germs than in the subway (!), and that air in a car can be far more contaminated than in a high traffic street. It was also shown that biocontamination decreases rapidly with altitude, whereas NO2 concenration decreases much slower.
 


Ouardane JOUANNOT (18)

City/Region: Paris
E-mail: ouardane@noos.fr
Hobbies: Cinema, Photography, Music, Sailing
Career: Biologist
School: Lycée Chaptal
   

Timothée LELEU (18)

City/Region: Paris
E-mail: AstralLdreams@hotmail.com
Hobbies: Reading, Writing, Cinema, Web design, Programming, Music
School: Lycée Chaptal
   

Jean-François SCHAFF (17)

City/Region: Paris
E-mail: jfschaff@hotmail.com
Hobbies: Music, Computer modelling
Career: Researcher in Physics
School: Lycée Chaptal

 
Study of a very strange oscillator

A small can with a hole in its bottom, containing sweet water was placed in a water vessel. Laser measurements, showed that while sweet water dropped into the water vessel, water from the vessel raised into the can. Surprisingly, in some conditions, an oscillation of water appeared at the level of the hole. Experiments were done to better understand the reasons of this water oscillation.

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