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Re: Satellites

Both the US and China have tested their ability to destroy satellites. China's test in 2007 was "the largest recorded creation of space debris in history with at least 2,317 pieces of trackable size (golf ball size and larger) and an estimated 150,000 debris particles." 4 years later it pa...
by steve
Tue Nov 10, 2015 3:57 pm
 
Forum: 10. Communication
Topic: Satellites
Replies: 4
Views: 2771

Re: Satellites

Any discussion of satellites should probably include some consideration of Kessler Syndrome https://en.wikipedia.org/wiki/Kessler_syndrome
by steve
Mon Nov 09, 2015 4:20 pm
 
Forum: 10. Communication
Topic: Satellites
Replies: 4
Views: 2771

The Internet

Low tech magazine: How to Build a Low-tech Internet http://www.lowtechmagazine.com/2015/10/how-to-build-a-low-tech-internet.html Low tech magazine: Why We Need a Speed Limit for the Internet The title is perhaps mis-leading, the article discusses the relative energy usage of different types of inter...
by steve
Mon Oct 26, 2015 3:40 pm
 
Forum: 10. Communication
Topic: The Internet
Replies: 1
Views: 1237

Re: How Empires End...

I thought this poster from the 1930s depicting the rise and fall of empires since 2000 BC would be interesting.

http://www.slate.com/blogs/the_vault/20 ... ingle.html
by steve
Mon Oct 19, 2015 1:43 pm
 
Forum: What might collapse civilisation?
Topic: How Empires End...
Replies: 6
Views: 3429

Re: Is anyone hearing us?

Google is indexing discuss.the-knowledge.org, you can verify this by searching for "site:discuss.the-knowledge.org". Strangely searching for "site:discuss.the-knowledge.org pumpkin" returns no results, but searching for other key words on the site does find threads such as "...
by steve
Mon Oct 19, 2015 1:04 pm
 
Forum: New members
Topic: Is anyone hearing us?
Replies: 5
Views: 2125

Power from animal waste

by steve
Mon Oct 19, 2015 10:44 am
 
Forum: 8. Power to the People
Topic: Power from animal waste
Replies: 0
Views: 907

Food Storage

No-Tech Magazine is probably a website users of this forum will find interesting along with its sister site Low-Tech Magazine . There is a whole category of articles on food storage the latest of which is about Garum which is what the romans called fish sauce which they used to store the seasonal r...
by steve
Wed Oct 14, 2015 12:04 pm
 
Forum: 4. Food and Clothing
Topic: Food Storage
Replies: 0
Views: 796

Re: Svalbard Seed Vault

Atlas Obscura: From WWII to Syria, how seed vaults weather wars A short history of seed banks that demonstrates that war is a great threat to them. A few topics in this article that would be interesting to learn more about. http://www.atlasobscura.com/articles/wwii-to-syria-how-seed-vaults-weather-w...
by steve
Tue Oct 13, 2015 3:54 pm
 
Forum: 3. Agriculture
Topic: Svalbard Seed Vault
Replies: 6
Views: 3498

Links: Threats to humanity/civilisation

⋅  Bulletin of the Atomic Scientists: Doomsday Clock ⋅  http://thebulletin.org/timeline ⋅  Wikipedia: Global Catastrophic Risk ⋅  https://en.wikipedia.org/wiki/Global_catastrophic_risk ⋅  Global Challenges Foundation ⋅  Global Risk and Opp...
by steve
Thu Oct 01, 2015 12:42 pm
 
Forum: What might collapse civilisation?
Topic: Links: Threats to humanity/civilisation
Replies: 1
Views: 1182

Re: Svalbard Seed Vault

Another article about Aleppo's ICARDA seed bank, which collected seeds for arid environments. Sounds like they'll be moving either the Morocco or Lebanaon. The Atlantic: Rescuing Ancient Seeds From a War-Torn City http://www.theatlantic.com/science/archive/2015/09/rescuing-ancient-seeds-from-a-war-t...
by steve
Wed Sep 30, 2015 1:36 pm
 
Forum: 3. Agriculture
Topic: Svalbard Seed Vault
Replies: 6
Views: 3498
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