Which sci-fi crew do you fit in with?
Posted by Lippard at 3/04/2006 11:18:00 AM 1 comments
A nimble, four-legged robot is so surefooted it can recover its balance even after being given a hefty kick. The machine, which moves like a cross between a goat and a pantomime horse, is being developed as a robotic pack mule for the US military.In this amusing or perhaps creepy video (28MB Windows media file), the robot walks over different types of terrain--including mud, rocky ground, and snow--and is given a few kicks to show how it stabilizes itself. Unlike the photo at left, in the video it looks like a pantomime horse with both people facing each other--sort of the opposite of a pushmipullyu.
Posted by Lippard at 3/04/2006 11:04:00 AM 1 comments
Labels: technology
Posted by Lippard at 3/04/2006 07:15:00 AM 4 comments
Labels: Arizona, censorship, politics, religion, Scientology
Posted by Lippard at 3/03/2006 09:50:00 PM 25 comments
Labels: Answers in Genesis, Answers in Genesis schism, Creation Ministries International, creationism, ethics, finance, Institute for Creation Research, Kent Hovind
It's amazing how small the animal kingdom is in the picture--if "speciesism" is a real problem, People for the Ethical Treatment of Animals (PETA) are apparently guilty of it by focusing only on animals.Here's a quick tour of the tree. Start at middle of the circle. The central point represents the last common ancestor of all living things on Earth. The tree sprouts three deep branches, which between them contain all the species the scientists studied. These deep branches first came to light in the 1970s, and are known as domains. We belong to the red domain of Eukaryota, along with plants, fungi, and protozoans. Bacteria (blue) and Archaea (green) make up the other two domains.
These lineages probably split very early in the history of life. Fossils of bacteria that look much like living bacteria turn up at least 3.4 billion years ago. Just a few lineages became multicellular much later, with some algae getting macroscopic about two billion years ago.
The length of the branches on this tree represent so-called genetic distance. The longer the branch, the more substitutions have accumulated in its genes. Since these genomes all come from living species, the branches all span the same period of time. The fact that some branches are long and some are short means that some lineages have evolved more than others. Many forces can stretch out genetic distance. A species may reproduce fast, or it may have a life that makes it prone to acquiring more mutations. The slash in the Bacteria branch represents a segment that the scientists left out to make the full tree easier to see.
Posted by Lippard at 3/03/2006 08:01:00 PM 2 comments
Labels: science
Posted by Lippard at 3/03/2006 07:00:00 PM 0 comments
Labels: Cunningham scandal, dirty politicians
"Checking every phone call ever made is an example of old think," he said.
He was alluding to databases maintained at an AT&T data center in Kansas, which now contain electronic records of 1.92 trillion telephone calls, going back decades. The Electronic Frontier Foundation, a digital-rights advocacy group, has asserted in a lawsuit that the AT&T Daytona system, a giant storehouse of calling records and Internet message routing information, was the foundation of the N.S.A.'s effort to mine telephone records without a warrant.
An AT&T spokeswoman said the company would not comment on the claim, or generally on matters of national security or customer privacy.
But the mining of the databases in other law enforcement investigations is well established, with documented results. One application of the database technology, called Security Call Analysis and Monitoring Platform, or Scamp, offers access to about nine weeks of calling information. It currently handles about 70,000 queries a month from fraud and law enforcement investigators, according to AT&T documents.
A former AT&T official who had detailed knowledge of the call-record database said the Daytona system takes great care to make certain that anyone using the database — whether AT&T employee or law enforcement official with a subpoena — sees only information he or she is authorized to see, and that an audit trail keeps track of all users. Such information is frequently used to build models of suspects' social networks.
The official, speaking on condition of anonymity because he was discussing sensitive corporate matters, said every telephone call generated a record: number called, time of call, duration of call, billing category and other details. While the database does not contain such billing data as names, addresses and credit card numbers, those records are in a linked database that can be tapped by authorized users.
New calls are entered into the database immediately after they end, the official said, adding, "I would characterize it as near real time."
(Via Bruce Schneier's blog.)
Posted by Lippard at 3/03/2006 05:07:00 PM 0 comments
Labels: NSA, privacy, security, technology, wiretapping
Posted by Lippard at 3/03/2006 07:29:00 AM 0 comments
Labels: civil liberties, J.D. Hayworth, John McCain, law
Posted by Lippard at 3/02/2006 09:08:00 PM 0 comments
Labels: creationism, Dover trial, intelligent design
Posted by Lippard at 3/02/2006 09:07:00 PM 0 comments