Salmon Sperm Used To Create A Cheaper Replacement For Silicon
Jan 11, 2012 13:23
Scientists added a bit of silver to a thin layer of salmon sperm DNA and put it between two electrodes and have created a data storage device that could lead to a cheaper replacement for silicon.
The researchers over at the National Tsing Hua University in Taiwan and Karlsruhe Institute of Technology in Germany used salmon sperm cells as the source of their DNA because they grow fast. It also makes them more economical compared to the high quality silicon that's being used today.
They created their "write-once-read-many-times" (WORM) memory. From Eric Smalley at Wired:
In the default state the nanoparticles trap electrons, making them electrically resistant. Shine a laser on the film and tiny pathways open between the nanoparticles, making the material electrically conductive. So, shining a laser on a tiny patch of the film writes a bit of data. Send a current through a patch of the film to measure the conductivity, and you can read the data. Low conductivity = 0, high conductivity = 1.
Taiwan's local elections are coming up, and challenger Cheng Yung-chin contesting for the Magistrate of Hsinchu County really wants the seat. So much that he's launched an ad to show voters the values he's going to bring: Read more
Getting arrested sucks, but it is inevitable if you think you can outrun the law. But what's worse is if you get caught wearing a t-shirt that has a message of irony. Here are 17 people who wished they didn't wear them on the day they were caught. Read more
Reddit user Chestpants12's 9 year old struggled with a bit of homework, so he decided to help his son, Ryan. But instead of keeping things hush, Ryan let it slip that his dad had helped him out. He posted this to Reddit: Read more