Mind reading with MRI

By hooking up an MRI and looking at the visual cortex whilst the subject looks at an object creates a pattern. When the subject recalls that object in short term memory, you can recognise that pattern and tell what object the subject is thinking of.

This has 2 implications:
1) We can read a specific person’s mind; if we build up a library of their memory patterns
2) The part of the brain used to recall memories is the same as the part used when we are looking at something directly. This is important: it means that we really are living in a world created by our imaginations 🙂

Eyewitness identification severly unreliable

It’s been known for some time that eyewitnesses to an unpredictable and violent event have differing and even conflicting memories and testimonials of the event. Interestingly they also suffer from a deep need to conform: eyewitnesses put before a line-up will point out a person if they’ve been told that one of the line-up has confessed, even if the perpetrator is not in the line. If an eyewitness had fingered another person first and then heard about the confession of another, they’d usually change their accusation to another.

Man appears free of HIV after stem cell transplant

The procedure is still to dangerous to be used routinely – around 1/3rd of people die during the op, but this guy, who was transplanted with a mutated form of stem cells (with crippled CCR5 receptors, without which most forms of HIV can’t latch on to the cells, lending a natural immunity) made it and the docs can’t detect any HIV virusses: 2 years after the op!
They’re hoping this will lead to practical cures within 5 years…

Encyclopedia

So I have this bee in my bonnet about wikipedia being used for anything at all. Why? Because it’s not peer reviewed: it’s user reviewed, with users with the most reviews having the most powers – even if they make nonsense edits on things they know nothing about. Then there’s the political infighting and the obvious bias when it comes to certain people, cults or religions. Search the Register for many many examples.

So what then? We need some kind of trustworthy encyclopedia, don’t we? Well there are plenty of specific knowledge resources out there, so I’m not going to start on that, but Brittanica or Encarta are both paid systems, so to find out anything you’re going to need to pay.

Fortunately there are three free, peer reviewed alternatives:

1) Conservapedia, which is still user generated, but they have better rules than wikipedia.

2) Citizendium which was set up by a dissatisfied Wikipedia founder and uses experts in the field as well as strips anonymity.

3) Europeana, set up by the EU itself and with considerable help from a whole load of libraries, should be very good indeed. Unfortunately they had no experience with the scale of the project and they keep implementing new hardware in an attempt to keep up with demand. This means the encyclopedia is broken now and again.

8/9/10
There’s also the Stanford Encyclopedia of Philosophy, where articles are peer reviewed

Invisibility-Cloak Breakthrough

Ah yes, invisible cloaks!

I keep covering this, in the hope the technology will finally mature at some point.

There’s loads of technologies to choose from

Now, the metamaterias gang has produced a cloak measuring 10 x 50 cm It bends waveforms in a large range of frequencies and is very low loss.

They’ve developed software which allows them to very quickly prototype the placement and layout of the metamaterials over a surface. The technology itself is fairly cheap to implement. So it looks like it’s finally happening for real!