Teachers in predominantly black schools in the US have developed a program to teach fractals by using corn-row hair-styles as examples of the form:
Each braid is represented as multiple copies of a “Y” shaped plait. In each iteration, the plait is copied, and a transformation is applied. The series of transformed copies creates the braid. In the above example, we can see the original style at top right, and a series of braid simulations, each composed of plait copies that are successively scaled down, rotated, and translated (reflection is only applied to whole braids, as in the case where one side of the head is a mirror image of the other). One of the interesting research outcomes was that our students discovered which parameters need to remain the same and which would be changed in order to produce the entire series of braids (that is, how to iterate the iterations).
Wayback Machine mirror [Internet Archive]
(via Collision Detection)
Senator and 2020 US presidential candidate Bernie Sanders’ “High-Speed Internet For All” plan, unveiled today, promises $150 billion to build publicly owned broadband networks — and to break the chokehold that Comcast, Verizon, and AT&T have on Americans’ access to information and communication.
Women and girls, Uber at your own risk.
Who are these people that have time for a job, social life, and actual healthy meals? With a nutrition segment on seemingly every talk show and entire networks devoted to food, it can sometimes seem like we’ve never left our mother’s house and her constant admonitions to “eat your vegetables!” And okay, she was right. […]
Every Christmas list has names you dread buying for. But hold up: Before you wave the white flag and get them yet another gift card, scroll down a few. We’ve got 15 items that run the gamut from stylish old-school lighters to cutting-edge audio tech, enough variety to please any Scrooge. And the best part? […]
We’re living in the age of Big Data. As the driving force behind everything from Google’s famed algorithms to self-driving cars, massive sets of complex data can be found at the heart of some of today’s most exciting and important technologies. The Ultimate SQL Bootcamp Certification Bundle will give you the skills and tools you […]