Monday, January 28, 2013

Scientists Store Digital Photograph on Tiny Speck of DNA


This is a brief excerpt from PetaPixel




Michael Zhang · Jan 28, 2013


Could memory cards and hard drives one day store massive numbers of digital photographs on DNA rather than chips and platters? Possibly, and scientists are trying to make that happen.

Last year, we reported that a group of researchers had successfully stored 700 terabytes of data on a single gram of DNA. The data being stored that time was a book written by one of the geneticists. Now, a new research effort has succeeded in storing something that’s a bit more relevant to this blog: a photograph.British scientists announced last week that they had succeeded in storing 739KB of digital data onto a speck of DNA that’s barely visible to the human eye. Besides a digital photograph, the speck was used to store all 154 Shakespeare sonnets, a scientific paper PDF, and a 26-second audio clip from Martin Luther King’s famous “I Have a Dream” speech.

Children of the future will likely laugh when they see historic photos of how big and bulky modern-day hard drives are.

The storage technique involved converting the binary code of the files into the “four-letter alphabet” of DNA, creating strands of synthetic double helices. Afterward, the DNA strands could …



By: Michael Zhang


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