Science is revealed up close with this selection of images gathered by Canadian researchers for the 2016 competition ‘Proof Through Images’
The National Centre for Scientific Research, or CNRS, is a collection of 10 institutes run by the French Ministry of Education and Research. Together with Decouvrir magazine, the Natural Sciences and Engineering Research Council of Canada (NSERC) and Radio-Canada, it has run “La preuve par l’image” (Proof through Images) competition since 2010.
A selection of the competition shots are included below with explanations.
In this representation of a guanine-cytosine nucleic base pair, the bonds between the atomic nuclei have been determined in quantum fashion. The electron density of each atom sharing a region is represented by the small lines converging towards the nuclei. © Chérif MATTA / Université Mount Saint Vincent, Nouvelle-Écosse
Daphnia is a very common species of freshwater zooplankton. It uses its antennae to swim and feed. Beneath its transparent shell, its hemoglobin proteins (in orange) transport oxygen. Daphnia makes up the bottom of the food chain for thousands of species. © Maeva GIRAUDO / Magali HOUDE / Guillaume COTTIN / Laboratoire d’écotoxicologie aquatique du Centre Saint-Laurent
Inside a tube, the spinal cord of a mouse is exposed to an arc of light, produced by “light painting,” to show the neuronal circuit of the well-known knee-jerk reflex. The purpose of this study is to improve motor function recovery in spinal cord injury victims. © Yann DEVELLE / Université du Québec à Trois-Rivières
This protozoon, Tetrahymena (in blue), a unicellular organism that lives in freshwater, stores the bacteria on which it feeds (in green) inside a digestive vacuole (in orange). The protozoon compresses the remains of its meals into fecal balls (in red). © Alix DENONCOURT / Steve CHARETTE / Richard JANVIER / Université Laval
These bundles of shafts are indium phosphide nanowires. Their three-dimensional structure is of interest to the solar-panel industry since it increases the surface area available for capturing the sun’s photons. © Youcef BIOUD / Université de Sherbrooke
These vestiges of microalgae, known as diatoms, come from lakes in northern Québec. Pleurosigma sp., shown in blue, exhibits remarkable symmetry. This microstructure is in fact the external skeleton of the organism and is made up of silica. © Mélanie AUBIN / Valérie LECOMTE / IOS Services Géoscientifiques