Why the Y is so Weird
Our X and Y chromosomes make an odd couple. The X resembles any other chromosome, but the Y—the source of maleness—is downright strange. How did the two come to differ so much?
Volume 284, Issue 2
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Features
In Pursuit of the Ultimate Lamp
Full-spectrum light-emitting diodes, or LEDs, are becoming widespread—and the race is on to develop white-light versions to replace Edison's century-old incandescent bulb
The Science of Persuasion
Salespeople, politicians, friends and family all have a stake in getting you to agree to their requests. Social psychology has determined the basic principles that govern getting to "yes"
Safeguarding Our Water
We drink it, we generate electricity with it, we soak our crops with it. And we're stretching our supplies to the breaking point. Will we have enough clean water to satisfy the world's needs?
100 Years of Quantum Mysteries
As quantum theory celebrates its 100th birthday, spectacular successes are mixed with persistent puzzles
Making Every Drop Count
We drink it, we generate electricity with it, we soak our crops with it. And we're stretching our supplies to the breaking point. Will we have enough clean water to satisfy all the world's needs?
How We Can Do It
Growing More Food With Less Water
If the world hopes to feed its burgeoning population, irrigation must become less wasteful and more widespread