Absurd Creature of the Week: Meet the Bird That Lies and Tricks Its Way Into Sex. Disneyland’s a lie.
Mickey Mouse, for instance, isn’t a mouse at all, but a costume with a person inside. The architecture, too, is deceptive. That giant castle isn’t as tall as it looks, because designers deployed something called forced perspective, making the windows near the top smaller so they seem farther away. It’s some next-level sneakiness that the great bowerbird would find laughable. It was deploying its own visual tricks long before Walt Disney came around.
This is the saga of bowerbird hanky-panky, a romance packed with more lies, illusions, and thievery than a soap opera—with none of the insufferable soft focus. In Australia and New Guinea, 24 species of bowerbird undertake some of the most bizarre mating rituals among avians. The male great bowerbird is in this latter camp. The female bowerbird doesn’t really care, though. Now pretend you’re a female great bowerbird. Effetto Stroop. Da Wikipedia, l'enciclopedia libera.
Diagramma descrittivo dell'effetto Stroop. Gaussiana 1: nessuna interferenza nel pronunciamento dei colori. 10 brain disorders that distort reality. Metamerismo. Da Wikipedia, l'enciclopedia libera.
Il metamerismo consiste nella possibilità di ottenere un effetto ottico tale che l'occhio percepisca la stessa sensazione di colore in presenza di luce con distribuzione spettrale diversa dal colore puro in questione. Si tratta di un'illusione ottica basata sulla natura dell'interpretazione del colore da parte dell'occhio umano, è possibile creare la sensazione di un colore "puro", formato, selezionando la sola lunghezza d'onda che genera quella determinata sensazione di colore miscelando a dovere più lunghezze d'onda differenti, un esempio è il bianco di una lampada fluorescente formato da spettri non uniformi, in questo caso la temperatura di colore che si trova sulle confezioni è la temperatura a cui deve essere un corpo nero perché l'occhio umano percepisca la stessa sensazione di colore.
[modifica | modifica wikitesto] MI può essere decomposto in MIvis e MIUV se viene considerato solo una parte dello spettro. Attack on the pentagon results in discovery of new mathematical tile. In the world of mathematical tiling, news doesn’t come bigger than this.
In the world of bathroom tiling – I bet they’re interested too. If you can cover a flat surface using only identical copies of the same shape leaving neither gaps nor overlaps, then that shape is said to tile the plane. Every triangle can tile the plane. Every four-sided shape can also tile the plane. Things get interesting with pentagons. The hunt to find and classify the pentagons that can tile the plane has been a century-long mathematical quest, begun by the German mathematician Karl Reinhardt, who in 1918 discovered five types of pentagon that do tile the plane. (To clarify, he did not find five single pentagons. Most people assumed Reinhardt had the complete list until half a century later in 1968 when R.
That same year an unlikely mathematical pioneer entered the fray: Marjorie Rice, a San Diego housewife in her 50s, who had read about James’ discovery in Scientific American. But then the hunt went cold. Scheumorfismo. Da Wikipedia, l'enciclopedia libera.
Color rendering index. Emitted light spectrum determines the color rendering index of the lamp.
Color rendering index shown as Color Accuracy. The color rendering index (CRI), sometimes called color rendition index, is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in color-critical applications such as photography and cinematography. It is defined by the International Commission on Illumination (CIE, in French) as follows: Color rendering: Effect of an illuminant on the color appearance of objects by conscious or subconscious comparison with their color appearance under a reference illuminant. How E Ink Works. Magnetostriction. Animation of magnetostriction Magnetostriction (cf. electrostriction) is a property of ferromagnetic materials that causes them to change their shape or dimensions during the process of magnetization.
The variation of materials's magnetization due to the applied magnetic field changes the magnetostrictive strain until reaching its saturation value, λ. The effect was first identified in 1842 by James Joule when observing a sample of iron. This effect causes losses due to frictional heating in susceptible ferromagnetic cores. The effect is also responsible for the low-pitched buzzing sound that can be heard near transformers on alternating current carrying transmission towers. Explanation Internally, ferromagnetic materials have a structure that is divided into domains, each of which is a region of uniform magnetic polarization. SoundBug. Soundbug is a small speaker that can turn a resonant flat surface into a flat panel speaker.
The Soundbug is attached to a smooth resonant surface, this surface then acts as speaker. The tone differs depending on the surface (wood, metal, glass etc.). The Soundbug was developed by FeONIC Technology (formerly Newlands Scientific), a commercial research and development company specialising in magnetostrictive audio products as a spin off from Hull University. FeONIC used the same technology for Whispering Windows, which is able to resonate shop windows.