Transforming Chair Lets You Rest In Different Positions For Maximum Comfort./ It can penetrate each part. Because each part are composed of long wood sticks.
Waves by Daniel Palacios-- A long piece of rope generates waves floating in space by the physical action of its movement, and simultaneously creates sound by cutting through the air.
OP ART pinned from LM. Op Art and the Elements of Art. 5 one-page tutorials using Optical Illusions to reinforce the concepts learned in the Elements of Art.
The earliest known medical description of the eye, from a ninth-century work by Hunayn ibn Ishaq, is shown in this copy of a manuscript at the Institute.
Medical - Diagram - Descartes [Vision and visual perception] Eye and vision diagram you can think and therefore you are. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.
A Muslim physicist born in A. Alhazen pioneered experimental physics, founded the modern scientific understanding of optics, and invented the camera obscura--a device for projecting images--as shown in this illustration.