caustics
Caustic (optics)
Caustics made by the surface of water.
In optics, a caustic is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface. The caustic is a curve or surface to which each of the light rays is tangent, defining a boundary of an envelope of rays as a curve of concentrated light.
Hiding Images in Plain Sight
An Article by Matt FerraroI 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.
Caustic Engineering
An Article by Geoff ManaughA piece of milled plexiglass acting as a projecting lens; via the Computer Graphics and Geometry Lab at the École Polytechnique Fédérale de Lausanne
New milling techniques applied to glass and plexiglass panels could be used to “create windows that are also cryptic projectors, summoning ghostly images from sunlight.”
[Pauly and Bompas] hope that the technique will be used in architectural design, to create windows that mould sunlight and throw images or patterns onto walls or floors,” which, if timed, milled, and manipulated just right, could produce a slowly animated sequence of images being projected by an otherwise empty window during different times of day.
Architectural Caustics
A Research PaperTo control the shape of a caustic pattern generated by a specular or refractive surface, we need to solve the inverse problem: how can we change the surface geometry, such that incident light is redirected to produce a desired caustic image?
The eyes of a traveler
We’ve all heard that travel broadens the mind. But beneath this cliché lies a deep truth. Things stand out because they’re different, so we notice every detail, from street signs to mailboxes to two you pay at a restaurant. We learn a lot when we travel, not because we are any smarter on the road but because we pay such close attention. On a trip, we become our own version of Sherlock Holmes, intensely observing the environment around us. We are continuously trying to figure out a world that is foreign and new.
Too often, we go through our day-to-day life on cruise control, oblivious to huge swaths of our surroundings. To notice friction points – and therefore opportunities to do things better – it helps to see the world with fresh eyes. When you meet creative people with lots of ideas constantly bubbling to the surface, you often come away feeling that they are operating on a different frequency. And they are, most of the time. They have all their receptors on — and frequently turned up to eleven. But the fact is, we are all capable of this mode. Try to engage a beginner’s mind. For kids, everything is novel, so they ask lots of questions, and look at the world wide-eyed, soaking it all in. Everywhere they turn, they tend to think, Isn’t that interesting? rather than, I already know that.
By adopting the eyes of a traveler and a beginner’s mindset, you will notice a lot of details that you might normally have overlook. You put aside assumptions and are fully immersed in the world around you. In this receptive mode, you’re ready to start actively searching out inspiration.