The State of the Transistor : In 75 Years, it’s Become Tiny, Mighty, Ubiqui…
The most obvious change in transistor technology in the last 75 years has been just how many we can make. Reducing the size of the device has been a titanic effort and a fantastically successful on…
How Deep Learning Works : Inside the neural networks that power today's AI
Each neuron in an artificial neural network sums its inputs and applies an activation function to determine its output. This architecture was inspired by what goes on in the brain, where neurons tr…
The Latest Developments in Technology, Engineering, and Science : News
In July, U.S. president Joe Biden issued Executive Order 14036, which among other things urged the Federal Trade Commission (FTC) to address “unfair anticompetitive restrictions on third-party re…
An Instant E-Bike : Electrifying a Bike Can be Electrifyingly Easy
In 2009, I wrote in these pages about my efforts to add an electric motor to a bicycle—a project that involved a considerable outlay of money and many hours in a machine shop behind a lathe. At t…
The Delivery Drones Are Coming
When Amazon made public its plans to deliver packages by drone six years ago, many skeptics scoffed-including some at this magazine. It just didn't seem safe or practical to have tiny buzzing robot…
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