科学60秒: 披上"黑色外套"的地外植物
Most plants capture sunlight. And the results are usually green. Because in photosynthesis, plant chlorophyll uses of blue and our sun’s abundant red, and reflects green. But what if—as many ...
科学60秒:可"自愈"的"外衣"
Are your car’s bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers your floor? Wouldn’t it be great if those marks could just disappear? Well, thanks...
高清晰电视(2)
竞争常意味着等待人们做出选择。比如VCR-卡带式录像机的例子...Two major Hollywood studios, Paramount Pictures and Universal Pictures, have agreed to release movie only in HD DVD. The Toshiba company...
与爱滋病斗争(2)
与爱滋病斗争的任重而道远Family Health International has been working on public health issues since 1971. The organization is based in North Carolina and has programs in 70 countries. It does rese...