Flying Robots, Hilbert's Hotel and Droplets of Pitch

One link about computer security, another link about computer security and a third link about computer security.
A valid trick to hide CSS rules from Opera.
Building your own DVR. I talked about building a softwareDVR over a year ago.
Carol Lay is one of the few cartoonists who can get away with doing a cartoon about Hilbert’s Hotel outside a science magazine. That’s why I think she’s soooo cool.
The physics of pitch, one of the most viscous fluids known, are still mysterious. No, glass is not really a liquid. That’s just urban myth.
Speculations on the future of human evolution, whether through advances in biotechnology and tissue engineering or robotics. Of course the military has always been interested robot applications.
More mathematics and theory of games.
Adobe improves the accessibility of its PDF format by allowing screen readers to recite tax forms.