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Capturing More Light with a Single Solar Cell

01.31.2011
Energy
By Kevin Bullis

A semiconductor material could make solar cells three times as efficient.

App Turns iPhone into a Smarter Camera

01.31.2011
Computing
By Kate Greene
4 Comments

Developers use clever tricks to overcome the shortcomings of smart-phone cameras.

Egypt Turns Off the Internet. Now What Happens?

01.31.2011
Blog
By Christopher Mims
4 Comments

Mubarak's regime is about to come face to face with the "Dictator's Dilemma."

A Quicker Way to Identify Skin Cancer

01.31.2011
Biomedicine
By Veronique Greenwood

A new device that a doctor holds right over a mole uses laser light to determine if it's melanoma.

Why Astrophysicists Need a Lightbulb in Orbit

01.31.2011
Blog
By kfc
1 Comment

Astronomers measuring the most distant light sources need to know how much light the atmosphere absorbs. The answer is an orbiting lightbulb.

Our Energy Future by the Numbers

01.31.2011
Business Impact
By David Rotman
5 Comments

Statistics from the U.S. government suggest that our energy choices and level of consumption will not change much over the next few decades.

Could Cows Make Biofuels Better?

01.28.2011
Materials
By Katherine Bourzac
2 Comments

Enzymes found in the animals' digestive tract could be the key.

Catching Classic Sports Moments as They're Happening

01.28.2011
Computing
By Erica Naone

A startup quantifies what makes games exciting—and alerts you to go watch them.

Decoding Pneumonia's Defenses

01.28.2011
Biomedicine
By Emily Singer

Researchers sequence more than 200 strains of the bug and find a catalog of ways they evade drugs and vaccines.

Fat Cells for Broken Hearts

01.27.2011
Biomedicine
By Lauren Gravitz
1 Comment

A company is testing whether stem cells from fat could help prevent long-term damage after a heart attack.

A Shortcut to Designer Nanostructures

01.26.2011
Materials
By Katherine Bourzac

A new nanolithography technique works rapidly over large areas.

Making Old Computers Feel Brand New

01.27.2011
Computing
By Boonsri Dickinson
8 Comments

A startup lets customers run the latest software on a remote server.

Obama Swaps Cap-and-Trade for a Clean-Energy Goal

01.26.2011
Energy
By Kevin Bullis
17 Comments

In charting a new energy policy, he focused on creating jobs and improving American competitiveness, instead of climate change.

The Search for a Safer Helmet

01.26.2011
Computing
By Brittany Sauser
3 Comments

Novel helmets designed to protect players from concussions are coming to market, but experts still need more data to fully understand the injury.

A Time-Lapse Movie Shot Inside the Brain

01.26.2011
Biomedicine
By Emily Singer

A tiny endoscope keeps watch over a particular spot in the brain as it develops, or degenerates with disease.

An Even Smaller Pocket Projector

01.25.2011
Materials
By Duncan Graham-Rowe

A device just six millimeters thick can project images onto nearby surfaces.

Car Theft by Antenna

01.06.2011
Computing
By Erica Naone
2 Comments

Researchers beat automatic locking and ignition systems.

Glass that's Stronger than Steel

01.11.2011
Computing
By Arnie Cooper
11 Comments

A new material might make very robust dental implants.

"SMS of Death" Could Crash Many Mobile Phones

01.04.2011
Communications
By Erica Naone
3 Comments

Phones don't have to be smart to be vulnerable.

Home Internet with Anonymity Built In

12.22.2010
Web
By Tom Simonite
6 Comments

A router that runs the Tor software prevents Web tracking.

Facebook Wants to Supply Your Internet Driver's License

01.05.2011
Web
By Simson Garfinkel
12 Comments

And new security measures protect everyone's data.

Automakers Show Interest in an Unusual Engine Design

01.24.2011
Energy
By Kevin Bullis
11 Comments

The Scuderi engine could substantially improve fuel consumption by storing compressed air.

Smart Phone Zombie Apocalypse

01.20.2011
Communications
By Robert Lemos
9 Comments

A researcher creates a botnet for your pocket—a likely sign of things to come.

How to Make an Object Invisible

04.11.2007
Computing
By Duncan Graham-Rowe
19 Comments

A new theoretical design using nanowires provides a way to hide devices from visible light.

A Private Space Shuttle Replacement

01.18.2011
Computing
By Katherine Bourzac
4 Comments

The Dream Chaser will go into orbit on the nose of a rocket, then land gently on airport runways.

What Might Google Do With Data from Chrome OS?

01.03.2011
Computing
By Erica Naone
7 Comments

The company's new operating system will provide it with unprecedented data and advertising opportunities.

Obama Swaps Cap-and-Trade for a Clean-Energy Goal

01.26.2011
Energy
By Kevin Bullis
17 Comments

In charting a new energy policy, he focused on creating jobs and improving American competitiveness, instead of climate change.

Is Renewable Energy a "Good" Investment?

01.06.2011
Business
By Evan I. Schwartz
13 Comments

In the world of corporate finance, solar, wind and biomass technologies may be on the verge of crossing a key threshold.

Facebook Wants to Supply Your Internet Driver's License

01.05.2011
Web
By Simson Garfinkel
12 Comments

And new security measures protect everyone's data.

Glass that's Stronger than Steel

01.11.2011
Computing
By Arnie Cooper
11 Comments

A new material might make very robust dental implants.

Automakers Show Interest in an Unusual Engine Design

01.24.2011
Energy
By Kevin Bullis
11 Comments

The Scuderi engine could substantially improve fuel consumption by storing compressed air.

The Solar Panels Are Free, as Long as You Pay for the Power

01.05.2011
Business
By Kevin Bullis
10 Comments

How to get photovoltaics on your company's roof without putting them on the books.

Volt's Battery Capacity Could Double

01.12.2011
Energy
By Kevin Bullis
9 Comments

GM licenses technology that could also make the batteries much cheaper.

Smart Phone Zombie Apocalypse

01.20.2011
Communications
By Robert Lemos
9 Comments

A researcher creates a botnet for your pocket—a likely sign of things to come.

Why Bing "Likes" Facebook

01.03.2011
Communications
By Paul Boutin
8 Comments

Facebook should give Microsoft an edge against search rival Google.

Solving the Climate Crisis At a Profit

01.14.2011
Business
By Evan I. Schwartz
8 Comments

A Q&A with Hunter Lovins.

Car Theft by Antenna

01.06.2011
Computing
By Erica Naone
2 Comments

Researchers beat automatic locking and ignition systems.

The Solar Panels Are Free, as Long as You Pay for the Power

01.05.2011
Business
By Kevin Bullis
10 Comments

How to get photovoltaics on your company's roof without putting them on the books.

Patients Facing Blindness to Test Therapy with Stem Cells

01.07.2011
Biomedicine
By Emily Singer
6 Comments

Replacing certain cells in the retina could slow visual impairment for people with macular degeneration.

Glass that's Stronger than Steel

01.11.2011
Computing
By Arnie Cooper
11 Comments

A new material might make very robust dental implants.

Honda Flies A Fuel-Efficient Jet Prototype

01.05.2011
Energy
By Kevin Bullis
4 Comments

A unique shape made possible by composites helps cut fuel consumption while allowing faster speeds.

LEDs Are Getting Ready for the Spotlight

01.12.2011
Business
By Josie Garthwaite
5 Comments

Businesses could soon find that they can quickly recoup the higher up-front cost of high-tech lighting.

Automakers Show Interest in an Unusual Engine Design

01.24.2011
Energy
By Kevin Bullis
11 Comments

The Scuderi engine could substantially improve fuel consumption by storing compressed air.

A Test for 400 Inherited Diseases

01.14.2011
Biomedicine
By Emily Singer

New technology will allow broad screening for prospective parents.

Giving Hackers a Printed Invitation

01.21.2011
Computing
By Robert Lemos

Computer criminals may have a new target: the office printer.

Spinning Nano Yarns

01.07.2011
Energy
By Katherine Bourzac
3 Comments

A method for turning powders into fibers has many potential applications.

Video

CES Video Notebook

Briefings

Technology Review's primers on key emerging technologies.

The Smart Grid

Adding intelligence to the electric grid will reduce carbon emissions and make power more reliable—if we're willing to foot the bill.

Mobile Communications Fuels Computer Security Microprocessors Personalized Medicine

Special Report

The Office of the Future

New technologies are changing the old ways of doing business. What are the innovations that organizations are exploring to better manage their operations and make them more competitive?

MAGAZINE

Start Me Up

Online crowd-funding, supported by social technologies, provides a new business model for book publishing.

Nominate a TR35

Who are the best young innovators from around the world? We're taking nominations for the 2011 edition of the TR35.
Make your suggestions now.

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