豆知识 2011-04-03&04-09 物品的故事 (1/5)

Do you have one of these? I get a little obsessed with mine. In fact, I get a little obsessed with all my stuff. Have you ever wondered where all the stuff we buy comes from where it goes when we throw it out? I couldn't stop wondering about that. So

豆知识 2011-04-10&04-16 物品的故事 (2/5)

So next, the materials move to production. And what happens there is we use energy to mix toxic chemicals in with natural resources to make toxic contaminated products. There are over 100,000 synthetic chemicals in use in commerce today. Only a handf

豆知识 2011-04-17&04-23 物品的故事（3/5）

Well, it moves here, for distribution. Now distribution means selling all the toxic-contaminated junk as quickly as possible. The goal here is to keep the prices down, keep the people buying and keep the inventory moving. How do they keep the prices

豆知识 2011-05-22&05-28 带你认识谷歌操作系统

So, you are on the Internet using a web browser. You know that thing with the address bar, and back button, and bookmarks. That thing you are in right now, up there, yeah, that's your web browser. If you like me when youre on your own computer, you s

豆知识 2011-05-29&06-04 “总量管制和交易”的故事

I am so glad that the world is finally getting together to stop climate change. When I first heard that our leaders were meeting to talk about solutions, I breathed a huge sigh of relief. Didnt you? Then I said, wait a minute, what exactly are they p

豆知识 2011-08-07&08-13 Google +1按钮

Have you ever come home to a note that made life just a little bit easier? A tip from someone you trust that helps you find the things you care about. When you have lots of options in front of you, it's easy to find yourself wishing for a bit of advi

豆知识 2011-03-13&03-19 正确面对成长的烦恼

Everybody has a fear about growing up. Its all a part of the growing up process, but what exactly do we fear? The thought of going to a new school? Making big decisions? Leaving friends behind? Being left behind? Wearing a tie? Or simply not knowing

豆知识 2011-05-01&05-07 物品的故事（5/5）

In the U.S., we spend three to four times as many hours shopping as our counterparts in Europe do. So were in this ridiculous situation where we go to work, maybe two jobs even, and we come home when were exhausted, so we plop down on our new couch a

豆知识 2011-04-24&04-30 物品的故事（4/5）

President Eisenhower's Council of Economic Advisers chairman said that The American economy's ultimate purpose is to produce more consumer goods. More consumer goods? Our ultimate purpose? Not provide healthcare, education, or safe transportation, or

豆知识 2011-07-24&07-30 无线信号发生器的发展史

It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. Signal generators play an important role in testing devices we use every day. The

豆知识 2011-03-27&04-02 维基百科现状

Wikipedia is one of the most important websites on the Internet today, but you might be surprised to learn that it began as a side project of another online encyclopedia. That was called Nupedia, to be a traditional encyclopedia written by experts, f

豆知识 2011-10-30&11-05 退休储蓄

One day, we all want to retire. After working for most of our lives, we imagine a time when we can stop working, and have choices in how we spend our time. Because were all living longer than ever before, its going to take even more money to support

豆知识 2011-10-23&10-29 搜索引擎优化

Imagine for a minute that youre a librarian, but not a normal one. Youre a librarian for every book in the world. People depend on you every day to find the exact book they need. How do you do it? You need a system. You need to know whats inside ever

豆知识 2011-10-16&10-22 QR码

You've probably bought groceries and seen the cashier scan an item to get its price. It works because each product has a code thats a shortcut. It prevents the cashier from having to look up each item. Well, these days, new kinds of codes are appeari

豆知识 2011-10-02&10-08 电子设备的故事 (2/3)

IBMs own data revealed that its workers making computer chips had 40% more miscarriages, and were significantly more likely to die from blood, brain and kidney cancer. The same thing is starting to happen all around the world. It turns out the high-t

豆知识 2011-09-11&09-17 远距离爱情维持招数

Hi, I'm Donna Barnes. I'm a life and dating coach, the owner of NY Dating Coach here in New York City. In this clip, we'll talk about how to handle a long distance relationship. And it can really be fun if youll look at it that way. And yes, you miss

豆知识 2011-09-18&09-24 求爱被拒怎么办？

Hi, I'm Donna Barnes. I'm a life and relationship coach, and owner of NY Dating Coach in New York City. In this clip well talk about how to deal with rejection. And the first thing you do is not look at it like rejection. If he's not interested in yo

豆知识 2011-09-25&10-01 电子设备的故事 (1/3)

The other day, I couldnt find my computer charger. My computer is my lifeline to my work, my friends, my music! So I looked everywhere, even in that drawer where this lives. I know you have one too, a tangle of old chargers, the sad remains of electr

豆知识 2011-10-09&10-15 电子设备的故事 (3/3)

Imagine that instead of all this toxic e-waste piling up in our garages and the streets of Guiyu, we sent it to the garages of the CEOs who made it. You can bet that theyd be on the phone to their designers pretty fast demanding they stop designing f

豆知识 2011-11-06&11-12 图说糖尿病 (1/2)

Finding out you have diabetes can be scary, but don't panic. People with diabetes can live long, healthy lives. Sure, let's go over some basics. This is Diabetes Made Simple. When we eat, food travels to the stomach. Food is made of three basic nutri