手机黑屏也耗电

Smartphone Battery Drains a Lot Even with Dark Screen

Smartphone battery down to 10 percent? Time to turn down the brightness on the screen, right? It's a classic strategy to squeeze more juice from the battery. And it works. But that trick might be less effective than you think. Because it turns out nearly half the battery drain on a phone happens when the screen's not even on. So says a study presented at a meeting of the Association for Computing Machinery, in Portland, Ore.

Researchers eavesdropped on the activity of more than 1,500 Android phones - specifically, the Samsung Galaxy S3 and S4. They used an app they developed called eStar Energy Saver. The app logs the energy drain of the phone's apps and activities as they happen. (And you can try out eStar Energy Saver yourself, if you have an Android.)

日本三菱公司道歉

BBC News

  1. 日本公司为苦役二战美国战俘道歉
  2. 法国总统呼吁欧元区国家更有组织性
  3. 国会或撕毁伊朗核协议,奥巴马发誓否决
  4. 德国经济部长率团访问伊朗
  5. 国际足联主席召开会议,选举继任人
  6. 哥伦比亚叛军下令遵守停火协议
  7. 布隆迪危机谈判被中断
  8. 好莱坞女星离家,泳池打捞出一具尸体

考研词汇

PG Vocabulary

你想要啊?悟空,你要是想要的话你就说话嘛,你不说我怎么知道你想要呢,虽然你很有诚意地看着我,可是你还是要跟我说你想要的。

运动过量或导致血液中毒

Extreme Exercise Can Poison the Blood

If you're serious about fitness, you know the importance of training your muscles and your brain. Without the right prep, you won't have the physical or mental endurance to finish, whether it's a five-k or an Ironman. But it turns out that it may be just as important to train your gut - or suffer inflammatory consequences. So says a study in the International Journal of Sports Medicine.

Researchers sampled the blood of 17 runners before and after a 24-hour ultramarathon - where runners covered anywhere from 75 to 130 miles on foot. During the race, their guts got leaky - due to a lack of blood flow to the intestines, and the physical trauma from so many jarring miles. Gut bacteria escaped into the blood, where some released toxins. The runners' bodies then responded by launching an immune response, and inflammation set in.