文章列表

• 1.时差N小时 咖啡渍的奥秘(下)
• Why is that? Its because the edges of the spill are where the fluid is at its thinnest. A spill sitting on a flat surface is something like a pancake....
• 2.时差N小时 喝尿是安全的吗?(上)
• Time go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Is it OK to drink urine? Not that I want to, Im just cu...
• 3.时差N小时 喝尿是安全的吗?(下)
• But if you kept recycling urine by urinating and drinking it multiple times, wouldnt those minerals eventually build up until the urine was no longer ...
• 4.时差N小时 果实成熟(上)
• Usually a green, sour fruit is just a fruit thats not ripe yet. If you left a lime on the tree longer would it eventually change color and become swee...
• 5.时差N小时 果实成熟(下)
• Plants attract fruit eaters，or frugivoresby packing valuable resources into their fruits like sugar and water or important nutrients such as caroteno...
• 6.时差N小时 热量动能(上)
• At one time it was believed that heat was a liquid. Sure, that sounds kind of crazy, but if you think for a second, you might see why. Suppose you hav...
• 7.时差N小时 戒烟的最好办法(上)
• We all know that smoking is unhealthy. But whats the best way to get someone to quit? By harping on the dangers of lighting up, or by touting the bene...
• 8.时差N小时 少吃盐对健康有益(下)
• But its worth trying to eat less. In one study, researchers used computer models to see how less salt could affect teens health. One result showed tha...
• 9.时差N小时 少吃盐对健康有益(上)
• I know its a good idea for adults to watch how much salt they eat, especially if theyre at risk for high blood pressure. But what about kids? Should p...
• 10.时差N小时 基因"食谱"(下)
• No matter what your cell was doing before, it will stop its healthy functioning and make only viruses, following the viral recipe until it runs out of...