In celebration of Ramadan, brush up on the beautiful and complex geometry of Islamic design –and learn how to draw a few of these patterns yourself!
Altair Designs represents a type of design that literally changes before your eyes. They are designs that conjure images and patterns in the mind’s-eye of a user making whatever is ‘seen’ unique. Altair designs, then, are not like other coloring books – there are no fixed images to color and they serve to stimulate the visual imagination. Figure Altair, drawing 3, shows an example where all sorts of image can be ‘seen’ including the elephant who is currently ‘standing in the dark!’
Las ilustraciones de Proporción Áurea dibujadas a mano por Rafael Araujo son una hermosa fusión del arte con la ciencia. Durante los últimos 40 años, el arquitecto e ilustrador venezolano ha estado perfeccionando sus sorprendentes dibujos, todos conectados por ese hilo conductor.
Through treating everything from strokes to car accident traumas, neurosurgeon Jocelyne Bloch knows the brain’s inability to repair itself all too well. But now, she suggests, she and her colleagues may have found the key to neural repair: Doublecortin-positive cells. Similar to stem cells, they are extremely adaptable and, when extracted from a brain, cultured and then re-injected in a lesioned area of the same brain, they can help repair and rebuild it. “With a little help,” Bloch says, “the brain may be able to help itself.”
Link para ver video original: https://www.ted.com/talks/jocelyne_bloch_the_brain_may_be_able_to_repair_itself_with_help