Is anyone else a bit frightened that the Guangdong plant picture shows what looks to be simple trusses and corrugated aluminum siding over the turbine section, where others use poured concrete and I-beams?

Did they skimp on anything else, I wonder?

PET scanning uses radioisotope Beta decay to Neutron, Neutrino and Positron, Positron -> Electron annihilation -> Gamma -> detection.

This is using an existing source of positrons, beta radiation.

http://en.wikipedia.org/wiki/Positron_emission

The non-trivial stuff is making anti-atoms. That's quite difficult.

http://en.wikipedia.org/wiki/Antimatter#Artificial_production

Here you go: http://www.youtube.com/watch?v=wOAWq5pXmGg

Over at Yahoo ( http://tech.yahoo.com/news/ap/20090710/ap_on_hi_te/as_skorea_cyber_attack ) they are reporting that there are only 86 IP addresses causing the outages:

"SEOUL, South Korea -
Cyber attacks that caused a wave of Web site outages in the U.S. and South Korea
used 86 IP addresses in 16 countries, South Korea's spy agency told lawmakers
Friday, amid suspicions North Korea was behind the effort."

Now, I'm a little skeptical that they didn't mean ISP instead of IP, but if it is true that there are only 86 hosts generating this much fanfare, then the network admins should be strung up with cat6 for not just blackholing these punks at the edge router. I guess we get the best govt. IT we can afford, right?