The Pearly Gates of Cyberspace, Author: Margaret Wertheim.
Physics on the Fringe, Author: Margaret Wertheim.
African Fractals: Modern Computing and Indigenous Design, Author: Ron Eglash.
By Margaret Wertheim – The world is full of mundane, meek, unconscious things materially embodying fiendishly complex pieces of mathematics. How can we make sense of this? I’d like to propose that sea slugs and electrons, and many other modest natural systems, are engaged in what we might call the performance of mathematics.
Rather than thinking about maths, they are doing it.
In the fibers of their beings and the ongoing continuity of their growth and existence they enact mathematical relationships and become mathematicians-by-practice. By looking at nature this way, we are led into a consideration of mathematics itself not through the lens of its representational power but instead as a kind of transaction.
Rather than being a remote abstraction, mathematics can be conceived of as something more like music or dancing; an activity that takes place not so much in the writing down as in the playing out.
Since at least the time of Pythagoras and Plato, there’s been a great deal of discussion in Western philosophy about how we can understand the fact that many physical systems have mathematical representations: the segmented arrangements in sunflowers, pine cones and pineapples (Fibonacci numbers); the curve of nautilus shells, elephant tusks and rams horns (logarithmic spiral); music (harmonic ratios and Fourier transforms); atoms, stars and galaxies, which all now have powerful mathematical descriptors; even the cosmos as a whole, now represented by the equations of general relativity.
The physicist Eugene Wigner has termed this startling fact ‘the unreasonable effectiveness of mathematics’.
Why does the real world actualize maths at all? And so much of it?
Even arcane parts of mathematics, such as abstract algebras and obscure bits of topology often turn out to be manifest somewhere in nature. more> https://goo.gl/ifKV2Z
Posted in Book review, EARTH WATCH, Education, History, Nature, Science
Tagged Earth, Ecology, Mathematics, Nature, Physics, Technology
How to Create a Surreal Photo Collage
By Terri Stone – When you composite photos, you usually don’t want the result to look like a composite. Even if the final scene is fantastical, your aim is to transport viewers into another world. Filip Hodas, a 24-year-old freelance artist from Prague, has been creating convincing digital realities for years. Now he’’ agreed to share his process.
To make the otherworldly landscape featured here, Hodas relied heavily on Adobe Photoshop CC layer masks. He placed each source image on its own layer and then used layer masks to hide and reveal parts of each. He also used layer masks to adjust color and add highlights and shadows.
Next came a Color Balance adjustment layer, which he added to the background images so their colors would be a better match. Trees on the right side of the horizon image were distracting, so he removed them with the Clone Stamp tool.
Hodas knows that small details can have a big impact on a composite’s overall look, so his next step was to refine the foreground image’s mask. That softened jagged edges a little and removed a slight yellow outline. more> https://goo.gl/7jat2c
Posted in Broadband, Business, Communication industry, Economy, Education, How to, Media, Net, Product, Science, Technology
Tagged Adobe, Broadband, Business improvement, Internet, Productivity, Technology
By Jacob Brogan – Corporate complicity: Many of us rely on Google, Apple, and their ilk to protect our accounts and information. Can we be sure that these companies have our best interests in mind when it comes to security and privacy?
Government involvement: As international, politicized hacking grows more common, governments may become more involved in private cybersecurity, potentially threatening individual privacy in the process. How much should we rely on political authorities as we work to reinforce our digital borders?
Human fallibility: Some security experts argue that humans are the “weakest link” in cybersecurity practices, but others counter that technology itself may be making things more difficult for them. Can we develop systems that won’t trip up reasonable, well-meaning people?
Inconvenience: Many of the most robust cybersecurity technologies also make it harder to use the internet. Can we guarantee our safety without sacrificing the things that make the internet fun to use? more> https://goo.gl/gLOn1s
By Megan McArdle – I thought Republicans should have confirmed Garland, and I’ve written before that the arms race to procedurally hack the U.S. government — via controlling the Supreme Court, or dreaming up ever-more-arcane uses of the parliamentary rules — is bad for the country and needs to stop. That doesn’t mean I think it’s going to.
The escalating tit-for-tat game over the Supreme Court has been going on at least since the 1980s, and arguably long before that, in the post-New-Deal era when courts began tilting noticeably leftwards.
Under Reagan, conservatives sought to reverse that by grooming conservative justices for all levels of the courts. Democrats tried to keep them from doing so, culminating in the disgraceful treatment of Robert Bork. Ever since, we’ve been locked in a spiraling cycle of payback.
Everyone understands that this is destructive; everyone wishes it to stop. The catch is, they also believe that it needs to stop after they themselves get last licks in. And so it continues. more> https://goo.gl/ZY6FYW
Posted in CONGRESS WATCH, Economy, History, Leadership, Media
Tagged Business improvement, Congress Watch, Government, Leadership, Supreme Court, United States, United States Congress