Today, some companies are working hard to prevent consumers from repairing products on their own. In many cases, repair can only be done by the original manufacturer, if at all. With limited repair options available, we end up buying new...

What if you could own more clothes without crowding your closet or growing your carbon footprint? Introducing the dematerialized future of your wardrobe, digital fashion entrepreneur Karinna Grant talks about the brands selling pixelated...

If everyone would just put more in the recycling bin instead of the trash can, the world would be a better place. Right? Well, that’s not exactly true. For many items that end up in the recycling bin, you’ve actually created more trash...

Ziyah Gafić photographs everyday objects—watches, shoes, glasses. But these images are deceptively simple; the items in them have been exhumed from the mass graves of the Bosnian War. Gafić, a TED Fellow and Sarajevo native, is...

We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re...

We make millions of online purchases daily, but who (or what) actually puts our items into packages? In this talk, Mick Mountz weaves a fascinating, surprisingly robot-filled tale of what happens inside a warehouse.

You might have noticed that sea urchins sometimes make some interesting fashion choices, covering themselves with all sorts of odds and ends, and it turns out they have a lot of different reasons for doing this.

After witnessing the _violent rage" shown by babies whenever deprived of an item they considered their own, Jean Piaget _ a founding father of child psychology _ observed something profound about human nature: Our sense of ownership...

Maya Penn started her first company when she was 8 years old, and thinks deeply about how to be responsible both to her customers and to the planet. She shares her story -- and some animations, and some designs, and some infectious...

What happens to the clothes we don't buy? You might think that last season's coats, trousers and turtlenecks end up being put to use, but most of it (nearly 13 million tons each year in the united States alone) ends up in landfills....

This Amoeba Sisters video introduces science lab safety guidelines with memorable illustrations and an accompanying handout listed under "safety". This video includes the discussion of proper lab attire, importance of proper disposal of...

What if, this holiday season, instead of saying "thank you" to your aunt for her gift of a knitted sweater, the polite response expected from you was to show up at her house in a week with a better gift? Or to vote for her in the town...

In our series finale, we're going to take a look at some of the times we've used statistics to gaze into our crystal ball, and actually got it right! We'll talk about how stores know what we want to buy (which can sometimes be a good...

Do you ever order clothes online in different sizes and colors, just to try them on and then send back what doesn't work? Aparna Mehta used to do this all time, until she one day asked herself: Where do all these returned clothes go? In...

The Amoeba Sisters explain enzymes and how they interact with their substrates. Vocabulary covered includes active site, induced fit, coenzyme, and cofactor. Also the importance of ideal pH and temperatures for enzymes are discussed.

For those of you looking to go out and actually do your holiday shopping in a store, you might want to be wary of the tricks businesses may use to encourage more spending.

In a world that's wasting more food than ever before, why do one in nine people still go to bed hungry each night? Social entrepreneur Jasmine Crowe calls for a radical transformation to our fight to end global hunger -- challenging us...

In this shorts math video we will answer a standardized math test question where we find the median of a line plot. We will review that median is the middle value in a set of data WHEN the data is in order from least to greatest. We...

The Japanese love to give gifts. The two main Japan-wide gift-giving seasons are July (Ochugen), when people wish each other summer greetings and good health, and December (Oseibo), to show appreciation for assistance offered during the...

Did you know that gift-giving is not a custom in Singapore in business situations? In fact, it could be construed as bribery. However, it’s perfectly acceptable to give someone, including a business colleague, a modest gift in a social...

The Japanese love to give gifts. The two main gift-giving seasons in Japan are July (Ochugen), when people wish each other summer greetings and good health, and December (Oseibo), when people show appreciation for assistance offered...

Let's learn to create an unordered list called the list group, which has items.

In this video, we will cover session bug.

In this video, you will learn how to remove all stored values from the session.