Vidéos et autres trucs trop cools, à partager avec vos petits génies.
Mes deux curieux ont 4 et 7 ans.
Science, culture, sports, etc. On n'est pas regardant sur le thème, en autant que c'est positif et capotant!!!
9 jours de radis qui poussent, en accéléré.
A time lapse spanning 9 days shows the growth of radish seeds sprouting while their roots grow deeper into the dirt.
Many plants, such as trees and flowers, have vascular systems. These vascular plants have a system of tubes they use to transport nutrients and water to different parts of the plant. Vascular plants all have similar parts, such as stems, leaves and roots.
The roots, for example, have several important functions. They pull water and minerals from the environment to nourish the plant. This is why they grow down, because the water and minerals needed for growth are below the ground in the soil.
They also provide support and help anchor a plant to the ground. Without a strong root system, trees would not be able to stand tall and withstand high winds.
Roots can also store food and nutrients. A well-developed root system can also prevent soil erosion. Some roots are even edible. For example, the carrots we eat are the roots of the carrot plant!
Not all roots are underground, though. For example, water plants may have roots that float in the water. Epiphytes are plants that live in trees with roots that cling to tree branches.
There are even some plants that don’t have roots at all. Remember: the plant kingdom is huge. It’s hard for the human mind to grasp the number and wide variety of plants that exist on Earth.
from Wonderopolis.
De la taille d’un humain, en passant par les atomes et les neutrinos, jusqu’à celle de la théorique longueur de Planck.
Fa-sci-nant.
Comment on fabrique de l’encre. Intéressant et vraiment très beau film.
A promotional video by a Canadian ink maker, this video not only explains the behind the scenes of how ink colors are made, but its artful presentation makes the process actually feel inspirational. (The music helps, too.)
Thanks, @focusmitch.
Ils coulent du béton dans une fourmillière pour ensuite la déterrer. Géant.
Wow, rien a dire là-dessus, c’est simplement impressionnant !
La passion des français pour le patin à roulettes ne date pas d’hier.
Cycle-Skating - The New Sport of 1923!
via Stellar.
Visualisation de la partition et des mains sur le piano. Fascinant (surtout quand on n’y connait rien).
Johann Sebastian Bach, Minuet in G, with two kinds of scrolling scores, visualized by Stephen Malinowski. Both co-curator and co-curator-in-training really like listening and watching these. There are a few more here, here and here.
Le phénomène des marées, illustré par celles (extrêmes!) de la Baie de Fundy.
En passant, le terme français pour «timelapse» c’est «chronocinématographie». Bravo.
via Kottke
À la recherhe d’une marionette pour les défilés ou autre festival?: une araignée géante.
London-based artist Tim Davies built this massive spider puppet for street and carnival performances. The kid should definitely see this (though probably not at night).
via Neatorama.
Machine à tourner la page d’un livre. Inventif.
Joseph Herscher takes a sip of his coffee, pulling string thereby tipping paintings. Balls roll down paintings, lighting burner to boil water causing books to tip. Vase and computer get knocked off the table, releasing tape which opens front page of newspaper.
You can see the entire set up by Joseph Herscher, who builds Rube Goldberg machines in Williamsburg, Brooklyn, in this great interactive description on the New York Times. There’s also a video interview with him that’s worth watching.
Il peint des poissons rouges sur plusieurs couches d’acryliques. Effet magnifique.
via Marc Lalumière
