長壽之道:對未來充滿希望 (1)
Hilary Tindle
Pittsburgh
Pennsylvania
- 相關(guān)熱點:
- 專四聽寫
科學(xué)60秒:棒球裁判與數(shù)學(xué)結(jié)緣
The traveling salesman problem is a favorite math conundrum: if a salesman has to visit a ____1____ of cities, how do you get him to all of them once via the shortest possible route. But the trav...
科學(xué)60秒:身體溫暖保健康
As a bitter winter storm rages on the east coast, it’s hard to knock being warm-blooded. But what about the metabolic cost of maintaining a high body temperature? Well, a new study finds that we...
科學(xué)60秒:尋找“地球號”
If there's a line in Vegas on the odds of life on another planet, now might be a good time to -1-. A study in the journal Science examined 166 sun-sized stars and found nearly one in four had roc...
少食鹽,更長壽(1)
吃鹽少一點 長壽多一點Hints:Kirsten Bibbins-Domingo San FranciscoStanford and Columbia Universitysodium Even a small reduction in salt in the diet can be a big help to the heart. A new study used...