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Computation & Analysis

Profiling the Eyes: ϕaithful or ROTen? Or Both?

An investigation of the golden ratio's appearance in the position of human faces in paintings and photographs.
There is a vast amount of literature on the appearance of the golden ratio in nature, in physiology and psychology, and in human artifacts (see this page on the golden ratio; these articles on the golden ratio in art, in nature, and in the human body; and this paper on the structure of the creative process in science and art). In the past thirty years, there has been increasing skepticism about the prevalence of the golden ratio in these domains. Earlier studies have been revisited or redone. See, for example, Foutakis, Markowsky on Greek temples, Foster et al., Holland, Benjafield, and Svobodova et al. for human physiology. In my last blog, I analyzed the aspect ratios of more than one million old and new paintings. Based on psychological experiments from the second half of the nineteenth century, especially by Fechner in the 1870s, one would expect many paintings to have a height-to-width ratio equal to the golden ratio or its inverse. But the large sets of paintings analyzed did not confirm such a conjecture. While we did not find the expected prevalence of the golden ratio in external measurements of paintings, maybe looking "inside" will show signs of the golden ratio (or its inverse)? In today's blog, we will analyze collections of paintings, photographs, and magazine covers that feature human faces. We will also analyze where human faces appear in a few selected movies.
Computation & Analysis

Wolfram Community Highlights: Medicine, Drones, KenKen, and More!

With some impressive new features, new forums, and many new members, Wolfram Community has had a great year. As we approach the end of 2015, we wanted to share a few highlights from the last few months' excellent posts on the Wolfram Community site.

Drones

Interested in drones? Check out these posts. Connecting ROS to the Wolfram Language, Or Controlling a Parrot ArDrone 2.0 from Mathematica, by Loris Gliner, a student in aeronautical engineering. Loris Gliner used his time in the Wolfram mentorship program to work out how to connect the Wolfram Language to the Linux Robot Operating System. He includes code examples and a video showing the flight of a Parrot ArDrone 2.0 controlled via the Wolfram Language.
Computation & Analysis

A Year of Runkeeper: Analysis and Visualization

About a year ago, I decided to record every single move I make using Runkeeper, and now I want to make some visualizations of my activity throughout the whole year. This is a fairly straightforward project where I will download the data from Runkeeper, then use the Wolfram Language to process, analyze, and visualize my activities. I will show how to create animations like this one that superimposes 24 minutes of all my activities recorded in Barcelona:
Best of Blog

Aspect Ratios in Art: What Is Better Than Being Golden? Being Plastic, Rooted, or Just Rational? Investigating Aspect Ratios of Old vs. Modern Paintings

Paintings of the great masters are among the most beautiful human artifacts ever produced. They are treasured and admired, carefully preserved, sold for hundreds of millions of dollars, and, perhaps not coincidentally, are the prime target of art thieves. Their composition, colors, details, and themes can fascinate us for hours. But what about their outer shape---the ratio of a painting's height to its width? In 1876, the German scientist Gustav Theodor Fechner studied human responses to rectangular shapes, concluding that rectangles with an aspect ratio equal to the golden ratio are most pleasing to the human eye. To validate his experimental observations, Fechner also analyzed the aspect ratios of more than ten thousand paintings. We can find out more about Fechner with the following piece of code:
Announcements & Events

Experts in Action: Live-Coding with Christopher Wolfram

If you've ever hit a roadblock while learning to code, then you know the frustration of trying to find the best resource to help you out. We have good news. We are happy to announce that Christopher Wolfram, son of Wolfram Research's founder, Stephen Wolfram, will be live-coding on Livecoding.tv. This new Y Combinator--backed coding platform brings programmers together to watch live streams of people coding real products. Enhance your coding skills and learn directly from someone with the knowledge and expertise that results from working directly with Stephen Wolfram. Christopher's presentation will focus on education analytics; users who tune in will see a firsthand demonstration of how to interact with datasets and visualizations in the Wolfram Language. The live streaming is scheduled for Tuesday, September 22 at 7pm CDT.
Leading Edge

Wolfram Community Featured Posts: Reddit’s 60-Second Button, Raspberry Pi, and More

Wolfram Community connects you with users from around the world who are doing fun, innovative, and useful things with the Wolfram Language. From game theory and connected devices to astronomy and design, here are a few posts you won't want to miss. Are you familiar with the Reddit 60-second button? The Reddit experiment was a countdown that would vanish if it ever reached zero. Clicking a button gave the countdown another 60 seconds. One Community post brings Wolfram Language visualization and analysis to Reddit's experiment, which has sparked questions spanning game theory, community psychology, and statistics. David Gathercole started by importing a dataset from April 3 to May 20 into Mathematica and charted some interesting findings. See what he discovered and contribute your own ideas.
Computation & Analysis

Wolfram Language Artificial Intelligence: The Image Identification Project

“What is this a picture of?” Humans can usually answer such questions instantly, but in the past it’s always seemed out of reach for computers to do this. For nearly 40 years I’ve been sure computers would eventually get there—but I’ve wondered when. I’ve built systems that give computers all sorts of intelligence, much of […]

Computation & Analysis

Instant Apps for the Apple Watch with the Wolfram Language

Note added 04/30/2018: Due to changes around Apple Watch and WatchKit, the Wolfram Cloud app does not currently support Apple Watch. The functionality described in this post remains available for other mobile devices. My goal with the Wolfram Language is to take programming to a new level. And over the past year we’ve been rolling […]

Announcements & Events

The Wolfram Data Drop Is Live!

Where should data from the Internet of Things go? We’ve got great technology in the Wolfram Language for interpreting, visualizing, analyzing, querying and otherwise doing interesting things with it. But the question is, how should the data from all those connected devices and everything else actually get to where good things can be done with […]