2015年12月19日 星期六

The four fish we're overeating -- and what to eat instead to help the oceans thrive

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TED
This week on TED.com
December 19, 2015

Paul Greenberg: The four fish we're overeating -- and what to eat instead

14:24 minutes · Filmed Oct 2015 · Posted Dec 2015 · Mission Blue II

The way we fish for popular seafood such as salmon, tuna and shrimp is threatening to ruin our oceans. Paul Greenberg explores the sheer size and irrationality of the seafood economy, and suggests a few specific ways we can change it.

Playlist of the week

Fascinating history

Be transported through the centuries with this playlist full of great stories -- and powerful insights -- from history. Watch »

12 TED Talks • Total run time 2:53:50

This week's TED Talks

Stellar astronomer Lucianne Walkowicz works on NASA's Kepler mission, searching for places in the universe that could support life. So it's worth a listen when she asks us to think carefully about Mars. In this short talk, she suggests that we stop dreaming of Mars as a place that we'll eventually move to when we've messed up Earth, and to start thinking of planetary exploration and preservation of the Earth as two sides of the same goal. As she says, "The more you look for planets like Earth, the more you appreciate our own planet." Watch »

UN refugee commissioner António Guterres thinks we can solve the global refugee crisis -- and he offers compelling, surprising reasons why we must try. In conversation with TED's Bruno Giussani, Guterres discusses the historical causes of the current crisis and outlines the mood of the European countries that are trying to screen, shelter and resettle hundreds of thousands of desperate families. Bigger picture, he calls for all of us to practice acceptance and respect -- to defy groups like ISIS's anti-refugee propaganda and recruiting machine. Watch »

Legendary duo Jane Fonda and Lily Tomlin have been friends for decades. In a raw, tender and wide-ranging conversation hosted by Pat Mitchell, the three discuss longevity, feminism, the differences between male and female friendship, what it means to live well and women's role in future of our planet. "I don't even know what I would do without my women friends," Fonda says. "I exist because I have my women friends." Watch »

"If you want to go out and start your own cemetery" in the UK, says Alison Killing, "you kind of can." She offers an eye-opening economic and social perspective on an overlooked feature of our towns and cities: our cemeteries. She unpacks the fascinating, sometimes funny, often contradictory laws about where you can be buried. Watch »

read more about ideas on ted.com

Exploring: Where do astronauts learn to do science in space? Deep in this awesome cave »
Being way, way underground and being in outer space are surprisingly similar

Economics: A scrappy debate about the future of capitalism »
What's wrong with the world economy today?

Science: The strange properties of water that's been zapped by lightning »
Learn more about the mysterious substance called plasma-activated water

Gallery: Powerful images from Ellis Island's immigrant hospital »
The artist JR pastes images of a ghostly past

Quote of the Week

Inspiration and growth only come from adversity and from challenge — from stepping away from what's comfortable and familiar and stepping out into the unknown."

Ben Saunders
Why bother leaving the house?

the hero's journey

From the Odyssey to Star Wars -- why are we drawn to stories about heroes? And what do they tell us about ourselves? TED speakers explore what makes a hero’s journey on the latest TED Radio Hour. Listen on iTunes »

 

 

2015年12月12日 星期六

This young inventor wants to stop germs from spreading on planes

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TED
This week on TED.com
December 12, 2015

Raymond Wang: How germs travel on planes -- and how we can stop them

06:28 minutes · Filmed Nov 2015 · Posted Dec 2015 · TEDYouth 2015

When one person sneezes on a plane, everyone around them worries about getting sick too. And in fact, what Raymond Wang discovered is: The way air moves inside a plane can actually help to spread pathogens to other passengers. Using fluid dynamics, he created computational simulations of how airflow spreads germs (he shares an unforgettable animation of a sneeze inside a plane cabin). And then this 17-year-old inventor created a prize-winning idea to fix it.

Playlist of the week

Talks for your inner child

Reconnect with your sense of wonder and imagination in these playful talks. Watch »

9 TED Talks • Total run time 1:58:52

More TED Talks

Jedidah Isler dreamt of becoming an astrophysicist since she was a young girl ... but at that time, only 18 black women in the United States had ever earned a PhD in a physics-related discipline. She shares the story of how she became the first black woman to earn a PhD in astrophysics from Yale -- and her deep belief in the value of diversity to science and other STEM fields. "Do not think for one minute that because you are who you are, you cannot be who you imagine yourself to be," she says. "Hold fast to those dreams and let them carry you into a world you can't even imagine." Watch »

Downloadable, printable clothing may be coming to a closet near you. What started as designer Danit Peleg's fashion school project turned into a collection of 3D-printed designs that have the strength and flexibility for everyday wear. "Fashion is a very physical thing," she says. "I wonder what our world will look like when our clothes will be digital." Watch »

Nicole Paris was raised to be a beatboxer -- when she was young, her father, Ed Cage, used to beatbox her to sleep at night. Now she and her dad jam together in epic, joyful beatbox battles, as Nicole drops modern sounds from electronic dance music while her dad brings the old-school classics. Prepare yourself for a bit of a hip-hop history lesson, and enjoy the show. Watch »

In this breathtaking talk, world champion freediver Guillaume Néry takes us with him into the ocean's depths. Meter by meter, he explains the physical and emotional impact of water pressure, silence and holding your breath. His eloquent description of the underwater experience reveals the hidden poetry of freediving. Watch »

read more about ideas on ted.com

Books: 58 great book recommendations from TED speakers »
We asked: What book are you always happy to find out someone else has read?

Math: Hexagons! And other reasons to love math »
One mathematician’s spirited answer to bored, frustrated and reluctant math students

Life: Why rejection hurts, and what to do about it »
Guy Winch shares some practical tips for soothing the sting of rejection

Science: A treatment for radiation -- that comes in a pill »
Once radiation is in the body, this treatment may help get it out

Humanity: A personal take on what it's like to live in a country at war »
"This country and its people deserve better"
 

Quote of the Week

There are two most powerful days in your life: the day you’re born, and the day you discover why."

Boniface Mwangi
speaking in TED's Year in Ideas 2015
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2015年12月5日 星期六

The incredible lives of coral babies

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TED
This week on TED.com
December 5, 2015

Kristen Marhaver: How we're helping baby corals grow

13:46 minutes · Filmed Oct 2015 · Posted Dec 2015 · Mission Blue II

Kristen Marhaver studies baby corals, tiny creatures the size of a poppyseed that, over slow and patient centuries, can grow to create structures hundreds of miles long: our coral reefs. As she admits, it's easy to get sad about the state of coral these days. So instead, she focuses on the wonder -- and in this talk, she tells us all about these amazing marine invertebrates and their mysterious lives.

Playlist of the week

The gift of giving

It’s the giving season. And thus, we give you these great talks on the hows, whys and whats of generosity. Watch »

7 TED Talks • Total run time 1:33:28

More TED Talks

The reality of being a working new parent in the United States is both hidden and horrible — because the US is one of the very few countries left in the world that does not offer paid parental leave. Being forced back to work too soon, Jessica Shortall suggests in this powerful talk, is bad for the parent, the baby and the US economy as a whole. Jawdropping stories from new parents, and some statistics that may shock you, build up to a idea well worth spreading. Watch »

Marina Abramović's art pushes the boundary between audience and artist ... in pursuit of heightened consciousness and personal change. Learn more about how her work turns simple gestures and ideas into powerful catalysts. "Nothing happens if you always do things the same way," she says. "My method is to do things I'm afraid of, the things I don't know, to go to territory that nobody's ever been." Watch »

How can we navigate the world without using the sense of vision? Inventor Chieko Asakawa, who's been blind since the age of fourteen, shares a charming demo of some new technology that's helping blind people explore the world ever more independently, and do things as simple -- and as profound -- as recognizing the face of a friend passing by. Her big idea: When we design for greater accessibility, everyone benefits. Watch »

In this breathtaking talk, world champion freediver Guillaume Néry takes us with him into the ocean's depths. Meter by meter, he explains the physical and emotional impact of water pressure, silence and holding your breath. His eloquent description of the underwater experience reveals its hidden poetry. Watch »

read more about ideas on ted.com

Inequality: What we can learn about the world through 7 toothbrushes »
Everyday objects from the richest to the poorest households

Politics: A brief history of the US' secret prisons »
Think they don't exist? Think again

Economy: 6 words to watch during a national debt crisis »
An industry insider shares the terms that hint at troubles to come

Love: No, you don't need to be the perfect lover »
A philosopher makes the case for a less-than-perfect union
 

Quote of the Week

No idea is born fully formed. It emerges a little bit as a child is born, kind of messy and confused, but full of possibilities. And it's only through generous contribution, faith and challenge that they achieve their potential."

Margaret Heffernan
Why it's time to forget the pecking order at work