Videos in: 2018

Church Speaks


The biggest energy creators in the world, the ones that take solar energy and turn it into a form that’s useful to humans, are these photosynthetic organisms. The cyanobacteria fix [carbon via] light as well or better than land plants. Under ideal circumstances, they can be maybe seven to ten times more productive per photon. . . .

Cyanobacteria turn carbon dioxide, a global warming gas, into carbohydrates and other carbon-containing polymers, which sequester the carbon so that they're no longer global warming gases. They turn it into their own bodies. They do this on such a big scale that about 15 percent of the carbon dioxide in the atmosphere is fixed every year by these cyanobacteria, which is roughly the amount that we’re off from the pre-industrial era. If all of the material that they fix didn’t turn back into carbon dioxide, we’d have solved the global warming problem in a year or two. The reality, however, is that almost as soon as they divide and make baby bacteria, phages break them open, spilling their guts, and they start turning into carbon dioxide. Then all the other things around them start chomping on the bits left over from the phages.

GEORGE CHURCH is professor of genetics at Harvard Medical School, director of the Personal Genome Project, and co-author (with Ed Regis) of Regenesis. George Church's Edge Bio page 

Go to stand-alone video: :

The State of Informed Bewilderment


In relation to the Internet and the changes it has already brought in our society, my feeling is that although we don’t know really where it’s heading because it’s too early in the change, we’ve had one stroke of luck. The stroke of luck was that, as a species, we’ve conducted this experiment once before. We’re living through a transformation of our information environment. This happened once before, and we know quite a lot about it. It was kicked off in 1455 by Johannes Gutenberg and his invention of printing by movable type.

In the centuries that followed, that invention not only transformed humanity’s information environment, it also led to colossal changes in society and the world. You could say that what Gutenberg kicked off was a world in which we were all born. Even now, it’s the world in which most of us were shaped. That’s changing for younger generations, but that’s the case for people like me.

JOHN NAUGHTON is a senior research fellow at Cambridge University's Centre for Research in the Arts, Social Sciences and Humanities. He is an Internet columnist for the London Observer, and author of From Gutenberg to Zuckerberg. John Naughton's Edge Bio page 

Go to stand-alone video: :