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It is important to know the rules of the road both for pedestrians and bikers. Prepare some signs and practise their meaning!
Cette expérience simple démontre le phénomène de lévitation magnétique.
Faisons tourner une feuille de papier grâce à la chaleur de nos mains.
Fold the paper here and there, chip one or two with the scissors. This is all you need to create something fantastic that looks like a snowflake.
Cette vidéo démontre l'expansion des gaz à l'aide d'une bouteille et d'une pièce de monnaie.
Cette vidéo démontre que la force résultant de la pression atmosphérique agit également vers le haut.
The amplified sound of the tuning fork indicates that the tuning fork causes the air column in the tube to resonate, producing a standing sound wave.
Surface tension, a special property of water surface, and the spherical shape of water drops are due to the attraction between the water molecules.
After the impact, the basketball regains its original shape, that is, elastic deflection occurs.
Cette expérience modélise la formation des tremblements de terre.
Brownian motion is the continuous random motion of particles mixed in a fluid, caused by their collision with the constantly moving molecules of the fluid.