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Stirling Engines

Stirling Engines Stirling Engines are external combustion heat engines, industrial prime movers originally developed as an alternative to steam. Advantages include external combustion (they run on any fuel), their high efficiency and relative simplicity. Disadvantages include their low power to wei...
by Dave Z
Thu Dec 21, 2017 3:52 am
 
Forum: 8. Power to the People
Topic: Stirling Engines
Replies: 0
Views: 7970

Meltwater Issues at Arctic Seed Vault

This is news from late May, 2017 (current as I write) regarding permafrost melt at the Svalbard Global Seed Vault. According to the BBC, the seeds were not affected, but water intruded into the access tunnel. Drainage ditches and other modifications are being implemented. The link returns a page of ...
by Dave Z
Mon May 22, 2017 5:24 am
 
Forum: 3. Agriculture
Topic: Meltwater Issues at Arctic Seed Vault
Replies: 0
Views: 48956

Fahrenheit 451 by Ray Bradbury

Fahrenheit 451 by Ray Bradbury Just re-read this classic, whose title is based on the point at which book paper burns. My distant memory failed to do it justice! Interestingly, while a near total ban on books is enforced 'top-down', the disengagement with challenging or provocative ideas expressed ...
by Dave Z
Mon May 22, 2017 2:52 am
 
Forum: Best post-apoc novels?
Topic: Fahrenheit 451 by Ray Bradbury
Replies: 0
Views: 10051

A Few Good Books for Post Calamity Med/Trauma Care

A Short Shelf for DIY Remote Medical and Dental First Responders generally do so within ambulance context (within two hours of a hospital). The goals are to stabilize, package and transport as quickly as possible, and according to protocols that allow only minimal treatment. Doctors at the hospital...
by Dave Z
Fri May 05, 2017 11:55 pm
 
Forum: 7. Medicine
Topic: A Few Good Books for Post Calamity Med/Trauma Care
Replies: 0
Views: 8722

Re: The Agile Approach

Hi Bruce, Well, cynics tend to be honest, themselves, and to hold the rest of us to a higher standard! My thought is that, the 'choose any two' applies well to high investment artifacts which, once built, must endure. I think the Agile Process applies where development and learning roll along in cyc...
by Dave Z
Tue Apr 04, 2017 10:35 pm
 
Forum: How quickly could you accelerate a reboot of civilisation?
Topic: The Agile Approach
Replies: 2
Views: 53223

Re: 'Life After Man', 'BBC Focus', Feb 2017

Hi Bruce, Okay, I fixed that link... thanks for the heads-up! RE The Coming Plague - My partner's reading that right now, so I'm getting a vicarious 2nd read. Once into it, it's pretty gripping stuff. Provides a lot of subtext and background to today's headlines. One of the darkly fascinating aspect...
by Dave Z
Tue Apr 04, 2017 10:09 pm
 
Forum: What might collapse civilisation?
Topic: 'Life After Man', 'BBC Focus', Feb 2017
Replies: 6
Views: 19280

Re: Hi, everyone; collected errata?

Hi Bruce, Anke and I practice erzatz , both for fun and as we're often a long way in time and/or space from the grocery store. Mosly working from dried goods and foraged foods. One of the tricks to satisfying erzatz, I feel, is to focus on the spirit - not the letter - of substitution. A classic exa...
by Dave Z
Tue Apr 04, 2017 9:27 pm
 
Forum: New members
Topic: Hi, everyone; collected errata?
Replies: 3
Views: 17300

The Essential Chemical Industry Online

Just ran across this excellent site as a companion to The Knowledge 's chapters on Substances and Advanced Chemistry , providing overview text and clear process diagrams: http://www.essentialchemicalindustry.org This example link is to an article on Sodium Carbonate: http://www.essentialchemicalindu...
by Dave Z
Sun Mar 19, 2017 11:46 pm
 
Forum: 5. Substances
Topic: The Essential Chemical Industry Online
Replies: 0
Views: 48117

Re: 'Life After Man', 'BBC Focus', Feb 2017

Hi Bruce, RE LOCA (Loss Of Coolant Accidents) at untended nuclear plants: As a 'Doomer' I've been worried about this for years. I consider it a big problem for the northern hemisphere (initially) in a cataclysmic situation where parts and personnel become unavailable, starting from causes as banal a...
by Dave Z
Thu Mar 16, 2017 2:37 am
 
Forum: What might collapse civilisation?
Topic: 'Life After Man', 'BBC Focus', Feb 2017
Replies: 6
Views: 19280

Re: Hi, everyone; collected errata?

Hi Bruce, and Welcome! I've been enjoying your comments. And I'm impressed by you're trying out processes, already. I'm still working up to most (soap's on the near horizon!). I don't know if there is a collection of errata. A question for you... I've heard that Dandelion Root 'coffee substitute' is...
by Dave Z
Thu Mar 16, 2017 1:55 am
 
Forum: New members
Topic: Hi, everyone; collected errata?
Replies: 3
Views: 17300
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