Daily Archives: February 8, 2017

A New Reason for Foreigners to Avoid Google and Facebook

By Leonid Bershidsky – A Philadelphia court has made the unfortunate decision to reopen the legal debate on whether the U.S. has the right to access e-mails stored on foreign servers if they belong to U.S. companies.

That’s a dangerous approach that hurts the international expansion of U.S. tech companies. Privacy-minded customers in Europe are already suspicious of the U.S. government’s cooperation with the tech giants, revealed by National Security Agency leaker Edward Snowden. Nationalist politicians in some countries — for example, Marine Le Pen of the French National Front — want to ban cross-border personal data transfers, arguing that such data must be stored on servers inside the internet user’s country. That, however, does not appear to guarantee that the U.S. won’t get at it, either.

Those who are uneasy about the degree of the U.S. government’s reach into their private files and communications need to start thinking about alternatives, no matter how hard it may be to replace Google, Microsoft or Facebook. more> https://goo.gl/a1hqfP

How to play mathematics

BOOK REVIEW

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.

(glasbergen.com)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

Updates from Adobe

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

Related>

Europe Must Defend Itself Against A Dangerous President

By Klaus Brinkbäumer – There are times in life that really do count. Times when a person’s character is revealed, when the important is separated from the unimportant. Soon decisions are taken that will determine the further path a person takes.

Germany must stand up in opposition to the 45th president of the United States and his government. That’s difficult enough already for two reasons: Because it is from the Americans that we obtained our liberal democracy in the first place; and because it is unclear how the brute and choleric man on the other side will react to diplomatic pressure. The fact that opposition to the American government can only succeed when mounted together with Asian and African partners — and no doubt with our partners in Europe, with the EU — doesn’t make the situation any easier.

Under President Trump, both the justified and the contemptible will be melded. Injustice is a major issue of our times, as are fears of digitalization and globalization — and rightfully so given that the division of society and the speed of modern life is, in fact, extreme. Trump fuses these worries of his voters with nationalism and xenophobia. That’s how demagogues work and it is how they become effective.

The fact that the United States, a nuclear superpower that has dominated the world economically, militarily and culturally for decades, is now presenting itself as the victim, calling in all seriousness for “America first” and trying to force the rest of the world into humiliating concessions is absurd. But precisely because this nonsense is coming from the world’s most powerful man, it is getting trapped by him. more> https://goo.gl/PwClWJ