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?
Ensuring Excellence
…in so many of the best product companies there is an additional dimension that goes beyond individual empowered product teams, and even goes beyond achieving business results.
It has to do with ensuring a level of what I’ll refer to here as “excellence” although that is clearly a very ambiguous term.
Over the years, this concept has been referred to by many different names, always necessarily vague, but all striving to convey the same thing: “desirability,” “aha moments,” “wow factor,” “magic experiences,” or “customer delight,” to list just a few.
The concept is that an effective product that achieves results is critical, but sometimes we want to go even beyond that, to provide something special.
Maybe it’s because we believe this is needed to achieve the necessary value. Maybe it’s because the company has built its brand on inspiring customers.
Often this dimension shows up most clearly in product design, where functional, usable but uninspiring designs can often achieve our business results, but great design can propel us into this realm of the inspiring.
Do they really need it?
Does Google really need playful doodles to deliver the value they consistently provide in search results?
Does Stripe really need to spend so much energy on the design of its site and SDK’s, which after all, are primarily for the developers that use their API’s?
Does Apple really need to sweat the literally thousands of very subtle and often not consciously noticed interactions on its devices?