(I'm liveblogging from TED 2008, in Monterey, CA)
Presenter: Robert Lang, origami expert
Origami has been around for 100s of years. It didn't change until 1970s when it experienced a Cambrian explosion in variety and techniques. It got richer and more interesting because people started applying math.
The secret to origami, and so many other things, is to let dead people do your work for you, like looking at the geometry of disk packing.
Four simple laws can give rise to very rich complexity in origami. They have to do with properties of crease patterns, angles around a vertex, layer orders, and valleys and ridges. If you obey these laws you can make anything. He has a program on his website that will show you the fold patterns needed to make anything. (You give it a stick figure, it shows you the folds.)
He shows how he uses these mathematical ideas to fold a square sheet of paper into anything.
Origami has applications in other areas, like a solar array that flew in a Japanese satellite telescope, umbrella telescope, solar sail, airbag, heart stent (origami may save a life).
The Giant Magellan Telescope is a marvel of engineering, and Dr. Patrick McCarthy explains the years-long process to make an optic mirror that costs over $20 million.
Anthony Atala, director of Wake Forest University’s Institute for Regenerative Medicine, is developing techniques to 3D print human organs for transplant using an individual’s own cells as the “ink.” That way, the transplanted organ won’t trigger the patient’s immune system to reject it as a foreign body. From National Geographic: (For example,) to create an […]
A Scottish team of animal biotechnologists announced this week they successfully introduced human stem cells into sheep embryos. Perhaps one day we will all have our very own baaing organ donors. The team are currently allowed to let the chimeric embryos develop for 28 days, 21 of which are in the sheep. While that might […]
Surfing on public Wi-Fi is convenient, but it’s far from safe. Whether you’re at a cafe or hotel, connecting to an unsecured network exposes you—and your personal information—to a host of hazards, including hackers, government spies, and trackers. Private Internet Access helps you navigate past these risks and tap into a safer, restriction-free internet, and […]
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