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Look into my eyes. What do you see? Pupil, lens, retina… an intricate set of special tissues and mechanisms all working seamlessly together, so that I can see the world around me. Charles Darwin called the eye an ‘organ of extreme perfection’ and he’s not wrong!
But if the eye is so complex and intricate, how did it evolve? One listener, Aloyce from Tanzania, got in touch to pose this difficult question. It’s a question that taxed Darwin himself, but CrowdScience is always up for a challenge!
The problem is that eyes weren’t ever designed - they were cobbled together over millions and millions of years, formed gradually by the tweaks and adaptations of evolution. How do you get from the basic detection of light to the wonderful complexity - and diversity – of visual systems we find throughout the animal kingdom?
CrowdScience sent Marnie Chesterton on an 800 million year journey to trace how the different elements that make up the human eye gradually came into being; from the emergence of the first light-sensitive proteins to crude eye-cups, from deep sea creatures with simple pinhole eyes to the first light-focusing lenses, all the way to the technicolour detail of the present day.
Produced by Ilan Goodman for the BBC World Service.
With contributions from: Dr Adam Rutherford, Dr Megan Porter, Professor Dan Nilsson, Dr Samantha Strong
(Photo Credit: Getty Images)
The real estate developer is teetering on the brink of collapse, but what might it bring with it?
This episode is sponsored by NYDIG.
Today’s show is a look at one of the most important but under-discussed macro events in the world today: the crisis surrounding China’s massive real estate developer Evergrande. The company’s share price has fallen more than 85% this year and around the country, people are protesting as more than 1.5 million deposits for homes were taken without fulfillment. In this episode, NLW looks at whether the risk is limited to just Evergrande, or whether it represents a larger systemic risk for China or the world as a whole.
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NYDIG, the institutional-grade platform for Bitcoin, is making it possible for thousands of banks who have trusted relationships with hundreds of millions of customers, to offer Bitcoin. Learn more at NYDIG.com/NLW.
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“The Breakdown” is written, produced by and features NLW, with editing by Rob Mitchell and additional production support by Eleanor Pahl. Adam B. Levine is our executive producer and our theme music is “Countdown” by Neon Beach. The music you heard today behind our sponsor is “Tidal Wave” by BRASKO. Image credit: Qilai Shen/Bloomberg/Getty Images, modified by CoinDesk.
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Apple unveils new iPhones and iPads. Intuit buys MailChimp for $12B in cash and stock. Amazon gets ready to sell Amazon-branded TVs. Coffee retailer Dutch Bros rises 60% on its IPO. Walmart and Ford Motor team up on robo-deliveries. And Taco Bell tests a taco subscription service. Motley Fool analysts Maria Gallagher and Jason Moser discuss those stories and share two stocks on their radar: Teladoc Health and Duolingo. Plus, Karen Hao, senior A.I. editor at MIT Technology Review, talks with Motley Fool senior editor Anand Chokkavelu about machine learning, which industries are being affected the most by A.I., and the new jobs being created.
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By Anne Waldman
Today, the word "Guantánamo" is, for most people, synonymous with one of the world's most infamous prisons -- but, as it turns out, the troubled story of this location dates back much further. In part one of this two-part series, the guys explore the history of Guantánamo Bay, from the 15th century to the modern day.
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No state has lost as much as California in the war on terror after the Sept. 11, 2001, attacks; 776 men and women who called the Golden State home have died — that’s 11% of the nation’s total casualties from the war. Nearly 20% of those Californians who perished were old enough to die for their country but too young to buy a drink. They left behind 453 children.
For the families — and the state — the loss from the war on terror is incalculable. We spoke to three families about loss, grief and the years that have passed since their loved ones were killed in April 2004.
More reading:
What did California lose in the war on terror?
More than any other state in the U.S. With prayers and promises, a California city remembers a fallen
Marine The young Marines wanted to help. They were the last Americans to die in the Afghanistan war
The alliance between America, Britain and Australia has enormous significance, most of all for its nuclear-submarine provisions. We look at the global realignment it represents. The container-shipping industry has had a wild year and its prices reflect the vast disarray; we ask whether things will, or should, get back to normal. And the growing trend of politicians’ media-production companies.
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Recently, China restricted video game playing to just three hours a week for its young people: 8pm to 9pm, Friday through Sunday.
And that’s not the only change. Over the last few months, private tutors, diehard celebrity fans, and tech giants have all faced fresh restrictions from Beijing. What’s behind this new wave of crackdowns?
Guest: Brenda Goh, technology correspondent for Reuters
Host: Lizzie O’Leary
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