Build a Tesla turbine
|Build a Tesla turbine from 2 old computer hard disk drives using basic hand tools and a pillar drill. No metal lathe or other expensive fabrication machinery is required and you only need some basic craft skills. It's crude, but this thing can scream!
I have published the design on one of my favourit websites, Instructables - the World's biggest Show&Tell, so go check it out: www.instructables.com
Here is a longer video of it in operation, running at approximately 20,000 RPM and generating a clearly-visible gyroscopic and precession effect, which was a nice extra to the experiment:
SPARC II Linux Distro
SPARC II Linux Distro for Ultra5 and Ultra10
Blessed are the cheesemakers
Blessed are the meek
Blessed are the bignoses
Oooh, that's nice, isn't it?
-- from Monty Python's The Life of Brian
More about this distro: www.bignoselinux.org
Oracle External Procedures
It is possible to call O/S commands or third-party programs from within SQL or PL/SQL with external procedures. This guide describes how to build, install and use such an ExtProc and shows an exploit on how to grant yourself Oracle sysdba rights. Think of an ExtProc as an Oracle root kit.