
Why Are Caffeinated Alcoholic Energy Drinks Dangerous?
A Temple University psychology associate professor explains what happens when sedatives and stimulants collide in the body
Larry Greenemeier is the associate editor of technology for Scientific American, covering a variety of tech-related topics, including biotech, computers, military tech, nanotech and robots.

Why Are Caffeinated Alcoholic Energy Drinks Dangerous?
A Temple University psychology associate professor explains what happens when sedatives and stimulants collide in the body

Should "Happy Meals" Aimed at Kids Be Banned to Help Curb Childhood Obesity?
San Francisco may stop restaurants from offering toys as an incentive to buy unhealthy food aimed at kids. One professor of nutrition, food studies and public health says this is a pretty good start, but more can be done

Are Military Bots the Best Way to Clear Improvised Explosive Devices ?
Robots continue to play ever-more important combat roles in the air and on the ground in Afghanistan and Iraq, and their responsibilities will only continue to grow

Exposing the Weakest Link: As Airline Passenger Security Tightens, Bombers Target Cargo Holds
Explosive packages intercepted in England and Dubai reveal new terrorist strategies for taking down aircraft as well as highlight a lack of funding and resources dedicated to cargo inspections

Should California Voters Repeal State Efforts to Curb Greenhouse Gases?
The fight over the state's controversial Proposition 23 culminates November 2, when voters decide whether to proceed with efforts to cut carbon dioxide and other greenhouse gas emissions by 25 percent by 2020

Could a Blood Test Reveal If You Have Early-Stage Cancer?
Researchers are studying whether the presence of certain proteins in the blood could provide signs of the formative stage of a malignancy

Cruel and Usual?: Is Capital Punishment by Lethal Injection Quick and Painless?
About two thirds of the states use a combination of barbituric, paralytic and toxic agents for executions, despite a lack of scientific evidence supporting their effectiveness. Although the procedure may be subject to FDA approval, the agency has avoided any ruling on the cocktail's efficacy in delivering a merciful death

Not Neutrality?: U.S. Weighs Options for Turbo-Boosting Nation's Broadband into the 21st Century
International governments and ISPs gather at Columbia University to discuss speeds and limits of data networks

No high-tech high five, this robot uses a beanbag for a hand

U.S. Science & Engineering Festival culminates this weekend on the National Mall

The Dean of Invention: Segway Mastermind Probes Sci-Tech's Future
Dean Kamen's new television program takes viewers on a behind-the-scenes look at cutting-edge research in hopes of inspiring a new generation of scientists, engineers and inventors

Taking Waves: FCC Green Lights Unlicensed Use of Wireless "White Space" Frequencies [Slide Show]
But now comes the hard part: making phones, PCs and other mobile gadgets that can take advantage of the broadcast spectrum's strong signals

Mini unmanned aircraft embark on missions with a Porsche named Sting

Economics Nobel Awarded for Efforts to Understand and Fight Unemployment [Updated]
Diamond, Mortensen and Pissarides honored for model to help economists study "search frictions"

Graphite Novel: Nobel Prize Thrusts Graphene into the Spotlight--But Can It Deliver?
Georgia Institute of Technology researchers have described a way of making graphene that preserves the material's conductive properties, an early step toward graphene–silicon electronics

Keep it fun, simple and social, says Twitter ex-developer and user no. 9

What's Ahead: Self-Cleaning Solar Panels

Biomechatronics aims to erase the entire concept of 'disability'

Idea Festival speaker: Robots are changing war in profound and disturbing ways

Sentiment-sensing software could aid in weeding hostile online comments

Crude Alternatives: Energy Industry Heavyweights Debate Fuels of the Future
With the world's energy demands expected to increase more than three-fold over the next century, ExxonMobil and Shell executives acknowledge the necessity (and difficulty) of unseating inexpensive and efficient crude oil and coal

Exoskeleton defines a new class of warrior [Video]

Mini Cell Phone Towers, Big Impact on the Future of Mobile Apps
Major telecoms push for portable, personal base stations to offload growing network traffic

Mini Cell Phone Towers, Big Impact on the Future of Mobile Apps
Major telecoms push for portable, personal base stations to offload growing network traffic