computing stories

 
Your body, in many ways, is a computer. It's not wired with silicon, but relies on chemical pathways to transmit and receive information and instructions. Conventional electronics may not play well with biology, but the invention of the first artificial chemical circuit could be the key to interacting directly with our cells.
 
Back in the day, electronics were made with vacuum tubes, which are like little light bulbs that function as amplifiers or switches. In the present, electronics use transistors instead, which do the same thing but can be made tiny and for cheap. NASA researchers have now figured out how to make vacuum tubes on the nanoscale, which could mean faster, more reliable computers.
 
Studies have recently shown tiny wires made by precisely placing chains of phosphorus atoms within a silicon crystal has been proven to have excellent electrical conductivity. The new silicon wire is four atoms wide and one atom tall showing that "electrical resistivity" — or ease with which the current can flow — definitely doesn't depend on wire width.
 
There's no denying the popularity of iTunes — it could be said that iTunes single-handedly took down the record store business model. But think about it. iTunes isn't even a website that you can surf from anywhere. You have to...

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