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July 2009

Inside the launch of Stephen Wolfram’s new “computational knowledge engine.”
By David Talbot

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Letter from the editor

On Answers

Features

Categorized in 17036
Chasing the Sun
The federal government is about to spend billions of dollars on renewable energy. In Part II of our series on the federal stimulus bill, we look at the impact the spending will have on the future of solar power.
Categorized in 17035
Medicine’s New Toolbox
An alternative way to make stem cells could open a window on human disease.

Also in this issue
- Contributors
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- Letters From Our Readers
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- The Problem with Cap and Trade
  David Victor explains why emissions trading alone won’t be adequate to address global warming.
  Categorized in Climate change
- Cell Fate
  Why we can’t abandon embryonic stem cells.
  Categorized in 17035
- To Search, Ask
  Library science will improve online search.
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- Butane Charger
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- Power Booster
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- Quantum-Dot Lighting
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- (People Like) You Are Here
  Categorized in 17032
- Wireless Scale
  Categorized in 17035
- Glaucoma Detector
  Categorized in 17035
- Waving the Channel
  Categorized in 17032
- Cheaper Chemical Sensor
  Categorized in 17032
- First Plug-In Hybrid for U.S. Sale
  Categorized in 17037
- Firefox Goes Mobile
  Categorized in Uncategorized
- Heart Watchers
  New wireless sensors and diagnostic algorithms promise simpler ways to remotely monitor cardiac patients for early warning signs of heart failure or heart attack.
  Categorized in 17035
- Privacy Requires Security, Not Abstinence
  Protecting an inalienable right in the age of Facebook.
  Categorized in 17032
- Life after Yucca Mountain
  Geologist Allison MacFarlane on the future of nuclear waste–and what it means for nuclear power.
  Categorized in 17037
- Igniting Fusion
  Researchers at a California National Lab will soon attempt to start self-sustaining fusion reactions using the world’s largest lasers. If it works, it could be a first step on the road to abundant fusion power.
  Categorized in 17037
- Fusion Reactions Using Massive Lasers
  Researchers at Lawrence Livermore National Lab will try to start self-sustaining fusion reactions using the world’s largest laser system.
  Categorized in 17037
- Cloud Computing
  Cloud computing could transform how software is developed and used, creating a raft of new online services and applications for businesses and consumers. Explore interactive charts, graphs and images illustrating how cloud computing works.
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- Carbon Trading on the Cheap
  If the United States wants to build a market-based approach to reducing carbon dioxide emissions, it should learn from Europe’s failures.
  Categorized in 17037
- A Pound of Cure
  The federal government is about to spend big on health-care IT. Too bad the medical industry has a vested interest in inefficiency.
  Categorized in 17032
- Building NASA’s Future
  The U.S. space agency readies the first test flight of the vehicle destined for the moon.
  Categorized in 17032
- Construction of the Ares I-X Rocket
  The U.S. space agency readies the first test flight of the vehicle destined for the moon.
  Categorized in 17032
- From the Labs: Biomedicine
  New publications, experiments and breakthroughs in biomedicine–and what they mean.
  Categorized in 17035
- From the Labs: Information Technology
  New publications, experiments and breakthroughs in information technology–and what they mean.
  Categorized in 17032
- From the Labs: Materials
  New publications, experiments and breakthroughs in materials science–and what they mean.
  Categorized in 17037
- A Hard Sell
  The Great Depression occasioned a battle over federal funding of science.
  Categorized in 17036

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