Tuesday, March 6, 2012

Human Rights Lawyer Bryan Stevenson at TED - Injustice



In an engaging and personal talk, with cameo appearances from his grandmother and Rosa Parks, human rights lawyer Bryan Stevenson shares some hard truths about America's justice system, starting with a massive imbalance along racial lines: a third of the country's black male population has been incarcerated at some point in their lives.

These issues, which are wrapped up in America's unexamined history, are rarely talked about with this level of candor, insight and persuasiveness.

Bryan Stevenson is the founder and executive director of the Equal Justice Initiative, fighting poverty and challenging racial discrimination in the criminal justice system. Full bio »

Neuroscience and Magic: Teller Reveals His Secrets

In the last half decade, magic—normally deemed entertainment fit only for children and tourists in Las Vegas—has become shockingly respectable in the scientific world.

Even I—not exactly renowned as a public speaker—have been invited to address conferences on neuroscience and perception. I asked a scientist friend (whose identity I must protect) why the sudden interest. He replied that those who fund science research find magicians “sexier than lab rats.”

I’m all for helping science. But after I share what I know, my neuroscientist friends thank me by showing me eye-tracking and MRI equipment, and promising that someday such machinery will help make me a better magician.

I have my doubts. Neuroscientists are novices at deception. Magicians have done controlled testing in human perception for thousands of years.

I remember an experiment I did at the age of 11. My test subjects were Cub Scouts. My hypothesis (that nobody would see me sneak a fishbowl under a shawl) proved false and the Scouts pelted me with hard candy. If I could have avoided those welts by visiting an MRI lab, I surely would have.

But magic’s not easy to pick apart with machines, because it’s not really about the mechanics of your senses. Magic’s about understanding—and then manipulating—how viewers digest the sensory information.

I think you’ll see what I mean if I teach you a few principles magicians employ when they want to alter your perceptions.

Read more of his secrets but use your new powers wisely: www.smithsonianmag.com

Monday, March 5, 2012

Paul Snelgrove at TED: A census of the ocean



Oceanographer Paul Snelgrove shares the results of a ten-year project with one goal: to take a census of all the life in the oceans. He shares amazing photos of some of the surprising finds of the Census of Marine Life.

Paul Snelgrove led the group that pulled together the findings of the Census of Marine Life -- synthesizing 10 years and 540 expeditions into a book of wonders. Full bio »

Saturday, March 3, 2012

Vijay Kumar showing off palm-sized "agile aerial robots" at TED



In his lab at Penn, Vijay Kumar and his team build flying quadrotors, small, agile robots that swarm, sense each other, and form ad hoc teams -- for construction, surveying disasters and far more.

At the University of Pennsylvania, Vijay Kumar studies the control and coordination of multi-robot formations. Full bio »

Wednesday, February 22, 2012

The Recovery Position: A Step by Step guide



A step-by-step guide to putting someone in the recovery position.

You can now get FREE a photo version of this guide on your phone! Find out more about the Epilepsy Society free app here: www.epilepsysociety.org.uk/App

For more epilepsy information visit their website: www.epilepsysociety.org.uk

Google glasses: Streaming info to your eyeballs

When smartphones came out, it seemed like a leap in convenience to be able to carry important information on us at all times, instead of leaving it with our computers.

But soon, it may seem onerous to reach for your phone, turn it on and find the right app to get a piece of information, when you could instead just wear a pair of glasses that directly stream information to your eyeballs.

By year’s end, Google is set to release glasses that do exactly that in real time, so you won’t constantly have to reach into your purse or pocket.

The glasses, which will be Android-based, will cost about as much as a smartphone ($250-$600) and feature a 3G or 4G data connection and GPS and motion sensors and, of course, they’ll sport a screen a few inches away from the eye.

Here are some other key features:
  • A unique navigation system that scrolls and clicks with a tilt of the head: Seth Weintraub, a 9 to 5 Google blogger who broke the story says, “We are told it is very quick to learn and once the user is adept at navigation, it becomes second nature and almost indistinguishable to outside users.”
  • A low-resolution built-in camera: It will monitor the world in real time and overlay relevant information about the location, nearby buildings and friends who happen to be in the area.
  • The ability to send data to the cloud: Then, the wearer can tap into services such as Google Latitude to share his/her location, Google Goggles to search images and figure out what he/she is looking at, Google Maps to find out what else is nearby, and to check in to places.

They’ll look like Oakley Thumps (pictured above), and Google expects that users won’t wear them all the time but only when they want the augmented reality view.

The glasses are being developed at the Google X offices, a secret lab that works on futuristic projects such as robots and space elevators.

"Internally, the Google X team has been actively discussing the privacy implications of the glasses and the company wants to ensure that people know if they are being recorded by someone wearing a pair of glasses with a built-in camera."

For now, Google isn’t yet thinking about developing business models from the glasses, but will wait to see if the glasses take off first.

Meanwhile, Apple is also reportedly working on wearable computing, the inform of a computer that straps around the wrist.

Meanwhile, Google is said to be building a $120 million electronics facility for testing “precision optical technology.”

Sunday, February 12, 2012

The Dunning-Kruger Effect: Not knowing your limits

The hypothesized phenomenon known as the Dunning-Kruger Effect, was tested in a series of experiments performed by Justin Kruger and David Dunning, both then of Cornell University. 

Justin Kruger and David Dunning noted earlier studies suggesting that ignorance of standards of performance is behind a great deal of incompetence.

This pattern was seen in studies of skills as diverse as reading comprehension, operating a motor vehicle, and playing chess or tennis.

Kruger and Dunning proposed that, for a given skill, incompetent people will:


  1. tend to overestimate their own level of skill;
  2. fail to recognize genuine skill in others;
  3. fail to recognize the extremity of their inadequacy;
  4. recognize and acknowledge their own previous lack of skill, if they can be trained to substantially improve.
Dunning has since drawn an analogy ("the anosognosia of everyday life") to a condition in which a person who suffers a physical disability because of brain injury seems unaware of or denies the existence of the disability, even for dramatic impairments such as blindness or paralysis.

To read more on "Unskilled and Unaware of it" Click here - PDF format