Commons:Wiki Science Competition 2019/Winners/Switzerland

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These are the finalists for WSC2019 in Switzerland.

This country-level selection had a specific national organizer and a national coordination page.


  • This country has a category for its files, other files from there might have been uploaded after the local deadline and moved to the 2019 international category if such deadline was still valid.
  • As of now, the files in the local category uploaded within the local deadline are 105, with 12 obviously unsuitable files.
  • Uploaders statistics are available here.

Specific classes of files[edit]


  • the selection was performed directly, with no tool.
  • coordinator: Alessandro Marchetti.
  • the jurors were provided by a national jury:
    - Elisa ARALDI (biology)
    - Julieta ARANCIO (Science and Technology Studies)
    - Mauro CASSINA (photography)
    - Simon DUTTWYLER (chemistry)
    - Michael GASSER (library science)
    - Dominik LANDWEHR (media specialist)
    - Laura MOLINA BUENO (physics)
  • the selection lasted from 2019-12-21 to 2020-01-29.
  • the results were published on 2020-02-08.


This country had the following files considered as possible finalists:

Files that were uploaded as part of a set are marked with (S), additional sets could have been reconstructed by the organizers.


People in science[edit]

1st national finalist
Fred Stauffer, Jardin botanique de Genève, analyzing an inflorescence of a palm tree in Senegal.
Didier Roguet
National winner

Microscopy images[edit]

1st national finalist 2nd national finalist
Lung cells infection by Pseudomonas aeruginosa.
Benoit-Joseph Laventie
National winner

Polarised optical microscopy image of cellulose nanocrystals.
Gwendoline Delepierre

3rd national finalist 4th national finalist

SEM image of Pyrrhocoridae .

Inductively Coupled Plasma - Deep Reactive Ion Etching (ICP-DRIE) of micro-pillars in silicon).

5th national finalist 6th national finalist

Immunofluorescence targeting the actin filament (red) and the microtubuli structure (green) in HeLa cells.
Mariantonietta L.

10 𝝻m heart-shaped sample under scanning election microscopy (SEM).
Yating Zhang

Non-photographic media[edit]

1st national finalist 2nd national finalist
Picture of honeydew melon obtained with Sapphire Biomolecular Imager
Axonlab (Michèle Heidemeyer)
National winner
Cell cycle of the bacteria Deinococcus radiodurans.
Kevin Floc’h

Image sets[edit]

1st national finalist 2nd national finalist
Compilation of seeds with elaiosomes. These seeds are dispersed by ants, known as myrmecochory. Starting from top left: Borago officinalis · Chelidonium majus · Corydalis cava · Corydalis sempervirens · Cytisus scoparius · Dicentra torulosa · Euphorbia lathyris · Euphorbia cyparissias · Jeffersonia diphylla · Pentaglottis sempervirens · Symphytum officinale · Viola elatior
Hans Stuessi
National winner
Single images also uploaded.
Pyrrhocoridae under Scanning Electron Microscope.
Stefan Meichtry
set of images reconstructed by the organizers.
3rd national finalist
Micrograph of particle separation in nano-liter droplets

Nature and wildlife[edit]

1st national finalist (ex aequo) 1st national finalist (ex aequo)
swans at the lake of Zürich.
Arthur Gamsa
National winner
Redkite flying.
Luis Scarabino
National winner
3rd national finalist 4th national finalist
Seed (nutlet) of Borago officinalis L. (Borage) with an elaiosome.
Hans Stuessi
Image selected from a set of images by the organizers.
Grape Hyacinth.
Banu Srini

General category[edit]

1st national finalist 2nd national finalist
Antimatter experiments in the Antimatter Factory at CERN.
Originally uploaded in the German category, moved here by the organizers.
National winner
CCD Detector of CHEOPS in the clean room of the University of Bern.
Thomas Beck