Steganography, prevention before is better that detection after

New Scientist recently ran an article about steganography. If you don’t already know, steganography is essentially encryption with a difference. Specifically, encryption is usually obvious. It may be that the data Alice sends via email to Bob with public key cryptography is entirely secure from eves-dropping by Eve (pun intended, sorry), but Eve will know… Continue reading Steganography, prevention before is better that detection after

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Published

Receiving Ukemi

For those not acquainted by martial arts. The title is a bit of a weak play on words, since “ukemi” means something like “receiving through the body”. Uke is generally the receiver of a technique and thus the attacker in aikido, whereas the nage is the thrower to use one possible word. Ukemi is important… Continue reading Receiving Ukemi

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Richard Feynman Lectures

I hold Richard Feynman in huge regard. He was a fascinating human being, a Nobel laureate physicist, his research in physics was second to none. But he was also a legendary lecturer, in both the fields of physics, and perhaps surprisingly computer science. And even more, he was an exceptionally well rounded person, a gifted… Continue reading Richard Feynman Lectures

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Published

Models, Perception, Science, Religion, Martial Arts

This is quite a long and detailed article, if you have no vague interest in meta-physics or philosophy and associated ideas, it may hold little value for you. You have been warned! I doubt that any human being lives directly in reality. None of us has an exact understanding of reality and generally I suspect… Continue reading Models, Perception, Science, Religion, Martial Arts

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