The science of making fruits and veggies last longer | Jenny Du
TED Talks Daily20 Aug 2025

The science of making fruits and veggies last longer | Jenny Du

It's a hard nut to crack: in order to prevent food waste, we rely on plastic packaging and refrigeration, which harm the environment. What if we could turn to nature to address these challenges? Engineer and chemist Jenny Du shares how a simple plant-based innovation — using the same elements found in fruit and vegetable peels — can extend the shelf life of produce, while also fighting food waste and spurring a healthier, more sustainable food system.

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The human insights missing from big data | Tricia Wang

The human insights missing from big data | Tricia Wang

Why do so many companies make bad decisions, even with access to unprecedented amounts of data? With stories from Nokia to Netflix to the oracles of ancient Greece, Tricia Wang demystifies big data an...

19 Jul 201716min

How your brain hallucinates your conscious reality | Anil Seth

How your brain hallucinates your conscious reality | Anil Seth

Right now, billions of neurons in your brain are working together to generate a conscious experience -- and not just any conscious experience, your experience of the world around you and of yourself w...

18 Jul 201716min

Can clouds buy us more time to solve climate change? | Kate Marvel

Can clouds buy us more time to solve climate change? | Kate Marvel

Climate change is real, case closed. But there's still a lot we don't understand about it, and the more we know the better chance we have to slow it down. One still-unknown factor: How might clouds pl...

17 Jul 201713min

Why our screens make us less happy | Adam Alter

Why our screens make us less happy | Adam Alter

What are our screens and devices doing to us? Psychologist Adam Alter has spent the last five years studying how much time screens steal from us and how they're getting away with it. He shares why all...

14 Jul 20179min

What rivers can tell us about the earth's history | Liz Hajek

What rivers can tell us about the earth's history | Liz Hajek

Rivers are one of nature's most powerful forces -- they bulldoze mountains and carve up the earth, and their courses are constantly moving. Understanding how they form and how they'll change is import...

13 Jul 201711min

How we can face the future without fear, together | Rabbi Lord Jonathan Sacks

How we can face the future without fear, together | Rabbi Lord Jonathan Sacks

It's a fateful moment in history. We've seen divisive elections, divided societies and the growth of extremism -- all fueled by anxiety and uncertainty. "Is there something we can do, each of us, to b...

11 Jul 201712min

Lifesaving scientific tools made of paper | Manu Prakash

Lifesaving scientific tools made of paper | Manu Prakash

Inventor Manu Prakash turns everyday materials into powerful scientific devices, from paper microscopes to a clever new mosquito tracker. From the TED Fellows stage, he demos Paperfuge, a hand-powered...

10 Jul 201714min

The gospel of doubt | Casey Gerald

The gospel of doubt | Casey Gerald

What do you do when your firmly held beliefs turn out not to be true? When Casey Gerald's religion failed him, he searched for something new to believe in -- in business, in government, in philanthrop...

28 Jun 201718min

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