Created a noob account

Our World create an account


Lewis Dartnell at TED2015 - Truth and Dare, Session 10. Photo: Bret Hartman/TEDTime for a thought experiment: Imagine for a moment that global catastrophe struck and you needed to rebuild the world. How would you do it? This is a topic that astrobiologist Lewis Dartnell researched in depth for his recent book, The Knowledge. At TED2015, he shares some of the highlights.

The are three important areas that have allowed civilization to progress, says Dartnell: food, fire and science.

Food. You could probably live for 55+ years on the canned and preserved foods in your local supermarket. But to rebuild civilization, you’ll need to farm enough wheat, rice and maize to feed yourself and at least 10 other people. Throughout history, this ratio has allowed cilviizations to progress and develop over time. To accelerate growth, you’ll want to add millstones to grind wheat. “The most important inventions othat have helped here have been the Roman waterwheel and the medieval windmill.”

Fire. We use fire to drive much of the crucial chemistry that our society today depends on. “Our modern world is as reliant on fire as a Stone age family huddled over a campfire—we’ve just hidden it behind the scenes, ” he says. Onstage, Dartnell demonstrates a simple gasifier that can be created in a tin can. This smokeless fire can be used to cook food, create potash or be scaled up to power machinery.

Science. Science isn’t a collection of facts and figures — it’s the way you figure things out for yourself. “It’s science that built our modern world, and it is science you would need to build it again from scratch, ” says Dartnell. The scientific revolution was driven and enabled by one particular substance: glass. Science and glass have been instrumental in enabling us to explore the natural world.



Share this article





Related Posts


Our world is Changing
Our world is Changing
We Can Change Our world
We Can Change Our world
Changes in our world
Changes in our world

Latest Posts
Orange County Environmental Protection Division
Orange County…
Eastern Screech Owl Babies…
Environmental Protection Information Center
Environmental…
Sharon Duggan, Staff Attorney…
National Environmental Management Protected Areas Act
National Environmental…
Author: Andy Gubb Wildlife…
United States Environmental Protection
United States…
The U.S. Environmental…
WV Department of Environmental Protection
WV Department…
Hobet mine from 1984-2013…
Environmental Protection Agency Atlanta
Environmental…
View Caption Hide Caption…
Environmental Protection Duty of Care Regulations
Environmental…
General Duty of Care Anyone…
List of good deeds for children
List of good…
I struggle a bit this…
Environmental Protection Magazine
Environmental…
Groundwater Monitoring…
Monaco Yacht Show 2016
Monaco Yacht Show 2016
The Monaco Yacht Show started in 1991...
Search
Featured posts
  • Our world is Changing
  • We Can Change Our world
  • Changes in our world
  • Twelve Diseases that Changed our world
  • Our World Sign up
  • About our World
  • Jobs to Change the world
  • World is Changing
  • Changing the world for the better
Copyright © 2020 l gooddeeds.eu.org. All rights reserved.