Archive for the 'computers' Category

16
Oct
13

DNA Computers–Think Origami, or Brain Folds

Scientists have struggled for over thirty years to market a DNA computer to the masses. It can play tic-tac-toe and solve the Traveling Salesman Problem (best way for a national sales guy to visit twenty-thirty cities–quite relevant to everyday people). Now the experts are considering using DNA computer apps to fight disease. But, for us middle Americans, we are far from benefiting from the power, affordability and tiny size of DNA computers.

Here’s a clever idea I stumbled across on MIT’s blog. We all know that the reason the brain can do so much is it relies on the folds that cover its surface. Technically, they’re not ‘folds’; they’re Gyri or Gyrus (singular) and the ‘valleys’ between the Gyri are called Sulci or Sulcus. Anyway, Mother Nature added these to give that umph to our brains in power, storage capacity and speed that no computer comes close to matching. Why not add them to DNA computers? Here’s a discussion:

DNA Origami for Faster, Smaller Computer Chips

Using DNA structures, researchers may be able to construct tinier, cheaper chips

Artificial, self-assembling DNA structures may help make smaller and cheaper microchips, according to research presented in the latest issue of Nature Nanotechnology. Tinier microchips would allow faster computers and other electronics.

Researchers from IBM and the California Institute of Technology used a technique known as DNA origami, where a long strand of DNA is folded into a shape with many shorter strands dubbed staples, creating a three-dimensional shape. In the paper, the researchers demonstrated using DNA origami-shapes as a scaffold for carbon nanotubes–a trick that could eventually be used to create nanoscale microchips.

The DNA structures are tiny enough to have features measuring six nanometers–the current industry standard for microchips is 45 nanometers. The process could replace the expensive tools manufacturers currently use to make tiny chips, although IBM suggests that it could take up to 10 years to test and refine the process for manufacturing.


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19
Feb
12

Digital World is Exploding

Get past the advert and there are five-and-a-half minutes of amazing numbers. Then a bit more adverting and a great discussion by Khan on the future of education, tomorrow’s classrooms, the importance of self-directed education.

I wish they wouldn’t throw in their sales blurb so often.

Sunburst Digital – Inspiring Videos on Tranforming Education from Sunburst on Vimeo.

Credits to respective copyright holders.

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Jacqui Murray is the editor of a technology curriculum for K-fifth grade and author of two technology training books for middle school. She wrote Building a Midshipman, the story of her daughter’s journey from high school to United States Naval Academy midshipman. She is webmaster for five blogs, an Amazon Vine Voice book reviewer, a tech columnist for Examiner.comEditorial Review Board member for ISTE’s Journal for Computing TeachersIMS tech expert, and a weekly contributor to Write AnythingCurrently, she’s editing a thriller for her agent that should be be out to publishers this summer. Contact Jacqui at her writing office or her tech lab, Ask a Tech Teacher.

28
Aug
11

Bing Caters to IE Users

Bing Users Are From Internet Explorer; Google Users From Firefox, Chrome & Safari, according to a new study by Search EngineLand:

Is anyone surprised?

Jacqui Murray is the editor of a technology curriculum for K-fifth grade and creator of two technology training books for middle school. She is the author of Building a Midshipman, the story of her daughter’s journey from high school to United States Naval Academy midshipman.  She is webmaster for five blogs, an Amazon Vine Voice book reviewer, a columnist for Examiner.com, an ISTE article reviewer, an IMS tech expert, and a weekly contributor to Write Anything and Technology in Education. Currently, she’s working on a techno-thriller that should be ready this summer. Contact Jacqui at her writing office or her tech lab, Ask a Tech Teacher.

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14
Jan
11

IBM Computer Competes with Jeopardy Winner

Fascinating. I wish computers could solve world hunger.

IBM computer taking on ‘Jeopardy!’ champs for $1M

By Jim Fitzgerald, Associated Press
YORKTOWN HEIGHTS, N.Y. — It’s the size of 10 refrigerators, and it swallows encyclopedias whole, but an IBM computer was lacking one thing it needed to battle the greatest champions from the “Jeopardy!” quiz show.

It couldn’t hit a buzzer.

But that’s been fixed, and on Thursday the hardware and software system named Watson was to play a practice round against Ken Jennings, who won a record 74 consecutive “Jeopardy!” games in 2004-05, and Brad Rutter, who won a record of nearly $3.3 million in prize money.

“‘Jeopardy!’ felt that in order for the game to be as fair as possible, just as a human has to physically hit a buzzer, the system also would have to do that,” IBM spokeswoman Jennifer McTighe said. “Now Watson has its own real buzzer.”

The practice round was to be played on a stage at an IBM research center in Yorktown Heights, 38 miles north of Manhattan and across the country from the game show’s home in Culver City, Calif. A real contest among the three, to be televised Feb. 14-16, also will be played at IBM, but the date hasn’t been made public.

The winner of the televised match will be awarded $1 million. Second place gets $300,000, third place $200,000. IBM, which has headquarters in Armonk, said it would give its winnings to charity while Jennings and Rutter would give away half theirs.

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13
Jun
10

Knowing Twitter Doesn’t Mean Using it

…or as my friend Jason Baer says, Twitter Sucks at Converting Awareness to Usage.

Here’s the statistics as revealed by an Edison Research study:

Known by 87%, just 7% of Americans use Twitter. Thus, fewer than one in 13 Americans who know about Twitter, actually use Twitter. Compare that ratio to Facebook, where 88% have heard of it, and 41% have a profile (a conversion rate approaching 50%).

–To get Sunday Stats every week, subscribe to the RSS feed (see sidebar).


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09
Jun
10

Fermat’s Last Theorem–Extreme Sports for the Brain

I love exercising my brain. I don’t like health clubs or running, so the only

fermat's last theorem

350 years ago, in the margin of this text, Fermat claimed he could prove this theorem

way I get exercise is by thinking. To me, this is one of life’s traits that separates human from non-. Have you ever seen a dog sit quietly and think. No. He falls asleep.  Most animals hunt, play or sleep. Their critical problems–those that might cause their extinction, those that might make their life easier–are solved by evolution. They are replaced by a different species that adapts better to the environment.

Not true with the human species, Homo. When we aren’t hunting or playing, we are as likely to be thinking through a problem as sleeping. We have adapted to our environment as much through our own big brain’s problem solving abilities as by evolution’s incremental process of replacing one species with another.

Extreme sports for a thinker is solving unsolvable mathematical problems. And one of the most extreme is Fermat’s Last Theorem. It took 350 years and over 150 pages to solve the first time, making it a worthy exercise for the brilliant human brain.

In the novel I am currently working on, my antagonist sponsors a competition between a brilliant mathematical scientist and a unique problem solving AI to see which can come up with the solution to Fermat’s Last Theorem. Even for an eidetic mind, memorizing 150 pages of obtuse equations would be close to impossible. But if you know the logic that provides a blueprint for the solution, you could reproduce it. Continue reading ‘Fermat’s Last Theorem–Extreme Sports for the Brain’

05
Apr
10

Sunday Stats: Turn Numbers into Pictures

Here’s your site for all things number pictures:

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Discover the sizzle in science. It's not that stuff that's always for the smart kids. It's the need to know. The passion for understanding. The absolute belief that for every problem, there is a solution. The creative mind seeking truth in a world of mystery. The quest for the Holy Grail.

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Books I’m Reading

Great Science Books

Assembling California
Born On A Blue Day: Inside the Extraordinary Mind of an Autistic Savant
The Forest People
Geology Underfoot in Southern California
The Land's Wild Music: Encounters with Barry Lopez, Peter Matthiessen, Terry Tempest William, and James Galvin
My Life with the Chimpanzees
Naked Earth: The New Geophysics
Our Inner Ape: A Leading Primatologist Explains Why We Are Who We Are
The Runaway Brain: The Evolution of Human Uniqueness
Sand Rivers
The Singing Neanderthals: The Origins of Music, Language, Mind, and Body
The Tree Where Man Was Born
The Wildlife of Southern Africa: A Field Guide to the Animal and Plants of the Region
The Worlds of a Maasai Warrior: An Autobiography


Jacqui's favorite books »
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RSS Fact and Fiction about Early Man

  • The Old Way: A Story of the First People October 4, 2017
    author: Elizabeth Marshall Thomas name: Jacqui average rating: 4.19 book published: 2006 rating: 5 read at: 2017/10/04 date added: 2017/10/04 shelves: history, early-man review: […]
    Elizabeth Marshall Thomas
  • Ki'ti's Story, 75,000 BC December 11, 2016
    author: Bonnye Matthews name: Jacqui average rating: 4.29 book published: 2012 rating: 5 read at: 2016/12/11 date added: 2016/12/11 shelves: early-man review: […]
    Bonnye Matthews
  • Meeting Prehistoric Man October 4, 2014
    author: GHR von Koenigswald name: Jacqui average rating: 4.00 book published: 1492 rating: 5 read at: 2014/10/04 date added: 2014/10/04 shelves: early-man review: Meeting Prehistoric Man by GHR Von Koenigswald is a journey throughout the world in discovery of early man as paleoanthropologists understood him during VonKoenigswald's time, circa 1950' […]
    GHR von Koenigswald
  • Letters from the Field, 1925-1975 September 13, 2014
    author: Margaret Mead name: Jacqui average rating: 4.17 book published: 1977 rating: 5 read at: 2014/09/13 date added: 2014/09/13 shelves: early-man review: If you didn't read my last week's post, you may wonder why I am so excited about Margaret Mead's eye-opening book, Letters From the Field. Even if you read me last week, you may wonder--I […]
    Margaret Mead
  • The Unfolding of Language: An Evolutionary Tour of Mankind's Greatest Invention January 12, 2014
    author: Guy Deutscher name: Jacqui average rating: 4.17 book published: 2005 rating: 3 read at: date added: 2014/01/12 shelves: early-man, research review: Dr. Deutscher has done a scholarly, thorough discussion on the roots of language, but I believe he started too late in time. I'm of the persuasion that language involves more than the spoken word. I […]
    Guy Deutscher
  • She Who remembers November 3, 2013
    author: Linda Lay Shuler name: Jacqui average rating: 4.11 book published: 1988 rating: 4 read at: date added: 2013/11/03 shelves: early-man review: […]
    Linda Lay Shuler
  • The Runaway Brain: The Evolution Of Human Uniqueness July 25, 2011
    author: Christopher Wills name: Jacqui average rating: 4.12 book published: 1993 rating: 5 read at: date added: 2011/07/24 shelves: science, early-man review: In my lifelong effort to understand what makes us human, I long ago arrived at the lynchpin to that discussion: our brain. Even though bipedalism preceded big brains, and we couldn't be who we are […]
    Christopher Wills
  • The Origin Of Humankind July 25, 2011
    author: Richard E. Leakey name: Jacqui average rating: 3.97 book published: 1981 rating: 5 read at: date added: 2011/07/24 shelves: early-man, history review: If you're interested in man's roots, there are several authors you must read: Birute Galdikas Dian Fosse Donald Johanson GHR Von Koenigsman Glen Isaacs Jared Diamond Ian Tattersell Lev Vygots […]
    Richard E. Leakey
  • Lucy: the beginnings of humankind July 24, 2011
    author: Donald C. Johanson name: Jacqui average rating: 4.11 book published: 1981 rating: 5 read at: date added: 2011/07/24 shelves: early-man, science review: I read this book when I was writing a paleo-historic drama of the life of earliest man. My characters were Homo habilines, but they cohabited Africa with Australopithecines, so to understand the co-st […]
    Donald C. Johanson
  • Through a Window: My Thirty Years with the Chimpanzees of Gombe July 24, 2011
    author: Jane Goodall name: Jacqui average rating: 4.25 book published: 1990 rating: 5 read at: date added: 2011/07/24 shelves: early-man, science review: I have read every book that Jane Goodall wrote. She has an easy-going writing style that shares scientific principals easily with the layman. Probably because when she started, she was little more than a no […]
    Jane Goodall
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