Believe It or Not—a Battery-Free Cell Phone —Andrew Crosthwaite Do you sometimes worry that your phone will run out of power right when you need it most? Wouldn't it be great if you never had to worry about charging your phone ever again?
It might sound impossible, but a team from the University of Washington has built a cell phone that doesn't need a battery. The phone is powered by radio waves that are sent from a base station, which can be up to 31 feet away. Additionally, power can be provided by light.
The phone is very simple. It has no screen or casing. It can't take pictures or send text messages, but it has a number pad and can handle voice calls. It works similarly to a walkie-talkie, as only one person can speak at a time.
The phone's designers hope that the base stations used to provide power will one day be a common wireless technology like Wi-Fi. Don't throw away your charger just yet, but a battery-free future for phones is now possible—and that's something to get energized about.
A: I'm thinking about making a YouTube channel about gardening. 我在考慮要開一個關於園藝的YouTube頻道。 B: You should! You've got a lot of experience, after all. 你應該開！畢竟你有很多經驗。
A: What should our first film review video be about? 我們第一支影評應該要做哪部電影？ B: Let's see what's playing at the local theater. 我們來看看本地戲院正在上映什麼片。
A: I can't believe how many followers we've got already! 我真不敢相信我們已經有這麼多的追蹤者！ B: I know! This channel really took off. 對啊！這個頻道真的很受歡迎。
A: What gave you the idea for your YouTube channel? 妳YouTube頻道的點子怎麼來的？ B: Well, I've always loved baking, so I just thought I'd share that with the world. 嗯，我一直熱愛烘焙，所以我只是想要跟世人分享。
2017/12/11(一)
A very long time ago, a mother kangaroo and her joey met a weak old wombat. 很久很久以前，一隻袋鼠媽媽和她的袋鼠寶寶遇見了一隻衰老的袋熊。
2017/12/12(二)
Now she would never lose sight of him again. 現在她再也不會看不到他了。
2017/12/13(三)
It works similarly to a walkie-talkie, as only one person can speak at a time. 它作用就跟無線對講機類似，因為一次只能一個人講話。
2017/12/14(四)
You're not out taking pictures today? What's the occasion? 你今天沒有出去拍照？今天有什麼大事嗎？
2017/12/15(五)
So, now that you've heard our ideas, what do you think? 那麼，既然你已聽了我們的想法，你覺得如何？
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