#magic window

Source: pinterest.com

#Magic window windows#

The process can also be used to create magic mirrors that reflect, rather than transmit, light to create an image.

#Magic window windows#

In Optica, Optica Publishing Group’s journal for high-impact research, Hufnagel and colleagues describe the process they developed for creating transparent liquid crystal magic windows that can produce any desired image. “By designing the window to be relatively smooth, the image that is created can be seen over a large range of distances from the window.” “The magic window we created appears perfectly flat to the naked eye but, in fact, has slight variations that create an image in response to light,” said research team leader Felix Hufnagel from the University of Ottawa. It took until the early 20th century for scientists to understand that these devices work because an image cast into the back of the mirror creates small surface variations that cause the image to form – and it took until now for engineers to apply the same principle to liquid crystals for high-tech displays. Thousands of years ago, artisans in China and Japan made bronze mirrors that looked like a normal flat mirror while viewing one’s reflection but formed another image when hit by direct sunlight. The technology represents a new twist on a very old light trick. WASHINGTON - For the first time, researchers have used liquid crystals to create a flat magic window - a transparent device that produces a hidden image when light shines on it. view moreĬredit: Felix Hufnagel, University of Ottawa Image: Researchers have used liquid crystals to create magic windows that produce a hidden image when light shines on it.

#Magic window full version#

#Magic window full version#

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1:03 AM EST December 13, 2021:

Boards of Canada - "Magic Window" From the album Geogaddi (February 13, 2002)

Last song scrobbled from iTunes at Last.fm

I recently made a physical object that defies all intuition. It's a square of acrylic, smooth on both sides, totally transparent. A tiny window.

But it has the magic property that if you shine a flashlight on it, it forms an image: