A TR10 Primer

What the 10 technologies tell you about us.
By Jason Pontin

Letters and Comments

Follow the Flow

The trail of U.S. energy--what we use, and how we waste it
By Matt Mahoney

Online Video

New tools are helping video become part of the fabric of the Web.
By Michal Tsur

Updating Search

We need to reimagine the role of search engines and their sources of data.
By Shashi Seth

Biofuel Backlash

Subsidies for corn ethanol are hurting ­people and the planet.
By C. Ford Runge

Paul Otellini

Is the U.S. losing its competitive edge? Intel's boss thinks so.
By David Rotman

Build Your Own Cellular Network

Just about anybody can create an inexpensive cellular base station that routes calls all over the world.
By Erica Naone

Information Technology

Biomedicine

Materials

China Cleans Up

China is adding nuclear, hydroelectric, wind and solar power at an unrivaled pace.
By Peter Fairley

Microprocessors

We look at how the challenges and opportunities of mobile computing are transforming the microprocessor.

Going Out of Print

The new generation of e-book readers will transform the print industry. What will the transformation look like?
By Wade Roush

A Less Personal Computer

Google's nascent operating system will be fast and safe. But in return, you'll be asked for your personal data.
By Simson L. Garfinkel

Terraforming Earth

In the face of climate change, Stewart Brand has some provocative solutions.
By Mark Williams

Nanotube Fibers

How to make strong, conductive fibers hundreds of meters long.
By Katherine Bourzac

Spinning Nanotubes into Fibers