Savoir e science on Instagram: "La lumière et le son voyagent à des vitesses très différentes, comme le montre clairement ce type d’explosion. Dès l’explosion, la lumière atteint nos yeux presque instantanément. En effet, elle se déplace à environ 300 000 kilomètres par seconde. Le son, qui est une vibration dans l’air, voyage beaucoup plus lentement : seulement 340 mètres par seconde. C’est pourquoi, lorsque nous observons de loin un phénomène similaire, comme une explosion ou un éclair, nous v

History Photographed on Instagram: "One of the earliest cat films ever made is “The Little Girl and Her Cat” (La petite fille et son chat), produced by the Lumière brothers in 1899. ⁠ ⁠ The short silent clip shows a young girl, Madeleine Koehler, feeding a cat from her high chair before the cat leaps onto the table.⁠ ⁠ It’s considered one of the first true “cat videos” in cinema history, capturing a simple, playful moment of everyday life more than a century ago."

Jordan on Instagram: "on December 28, 1895, in Paris, France, when the Lumière brothers, Auguste and Louis, held the first-ever public film screening. They presented short films at the Grand Café on Boulevard des Capucines, using their invention called the Cinématographe — a camera, projector, and printer all in one. Among the films shown was Workers Leaving the Lumière Factory, a 50-second clip that showed factory employees walking out after a day’s work. Audiences were stunned some had never s

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