Molecular Lego
A modest collection of small building blocks enables the design and manufacture of nanometer-scale structures programmed to have virtually any shape desired
Features
The Universe's Invisible Hand
Dark energy does more than hurry along the expansion of the universe. It also has a stranglehold on the shape and spacing of galaxies
Making Silicon Lasers
Scientists have at last persuaded silicon to emit laser beams. In a few years, computers and other devices will handle light as well as electrons
Methane, Plants and Climate Change
The surprising recent finding that living plants produce methane does not throw doubt on the cause of global warming. Human activities--not plants--are the source of the surge in this and other greenhouse gases...
Spice Healer
An ingredient in curry shows promise for treating Alzheimer's, cancer and other diseases
Tracking an Ancient Killer
The case was cold--the bones in the mass grave were 70 million years old. But critical clues pointed to the killer's identity
Digital TV at Last?
Analog TV broadcasting is set to end in two years, but its legacy could make the digital transition anything but smooth
Departments
Ask The Experts
- Letters
Letters
- Advances
The Triangular Universe
Unsettled Scores
Martian Rope Trick
Chipping In
Dial "I" for Internet
Cordless Charging
Think of Money, Be Less Helpful
Deciphering Neandertal's Faded Genes
Methane Flatline
Free Flow on Mars
Edible Cottonseeds--If You Want to Eat Them
- Recommended
Why Aren't More Women Physicists?
- Skeptic
Eat, Drink and Be Merry
- Anti Gravity
The Kindest Cut
- 50, 100 & 150 Years Ago
Viral Pattern -- Breathing Machines -- Science and Guilt
- Perspectives
Truth Time in Washington
- In Brief
Data Points, February 2007
Brief Points, February 2007
- By the Numbers
License to Work
- Technicalities
Power Walker
- Working Knowledge
Song Beams
- Insights
Graft and Host, Together Forever
- Sustainable Developments
Moving beyond Kyoto
