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Submission + - A peek into the future of lithium batteries (

Eloking writes: In a great example of a low-cost research solution that could deliver big results, University of Michigan scientists have created a window for lithium-based batteries in order to film them as they charge and discharge.

The future of lithium-ion batteries is limited, says University of Michigan researcher Neil Dasgupta, because the chemistry cannot be pushed much further than it already has. Next-generation lithium cells will likely use lithium air and lithium sulfur chemistries. One of the big hurdles to be overcome in making these batteries practical is dendrites — tiny branch-like structures of lithium that form on the electrodes.

Comment Re:Including a Mac Pro tower, right? (Score 1) 142

For both the folks that want one?

It's sad, but what's the point? I know there are a few folks who want real machines - but it just doesn't seem likely they're going to cater to that small a market. Sure it doesn't help that they've pretty much abandoned it up 'til now - but I have to think that's because they can't justify the effort.

You might think that they'd figure out that not having a full line of products is bad for each segment, but Apple's never been good at that.

Comment Re:Ugh. (Score 4, Insightful) 523

I decided a long time ago not to pay too much attention to art creators' opinions on much of anything. Mostly this applies to music. Turns out a lot of metal band members are idiots and/or aholes. But I do like the music. When I go to a restaurant I don't ask who the chef is voting for. Same when I look at art (I don't really go for political art).
Dilbert is funny as hell. The recent 'fire the bottom 10%' riff could have been taken from the company I work for. I'll continue enjoying the strip. But I won't start going to the blog for voting advice.

Comment Re:Tax (Score 1) 539

when government ensures that everyone can get power, and mail, and water and sewage (etc etc) - are they doing it with some alterior motives? strings attached?...

There generally are strings. I can't find the reference, but a Florida home was condemned after the owner admitted they had no [grid] power or sewer. They used solar and composted. In many states, if you own real estate you pay taxes. You are required to do various things with the property and follow laws that often mean spending money.

It's all reasonable stuff, but it's hardly string-free.

Comment Re:Understandable (Score 1) 305

I can understand how the mayor feels because software coding is just like finance, it does nothing to contribute to the economy other than offer a service. We need a manufacturing economy to bring jobs back. Service economies are third world. However, banning sets a dangerous precedent.

I'm a programmer, so maybe I shouldn't be surprised by my not understanding.

You're saying that having many many programmers that are really well paid and who provide a service with no requirements other than infrastructure (energy as clean as you provide and no manufacturing needs) who live, buy stuff, pay taxes, and all that - is a bad thing.
But having less well paid blue collar workers who buy less stuff, pay less taxes, and whose jobs require the inflow of goods and the outflow of goods (ie. who have more overhead and infrastructure needs) and who may or may not be replaceable with robots is a better thing.

How does that work?

As a previous resident of neighboring Redwood City I understand about screwing up downtown. Dunno how you'd fix it other than zoning or screwing with tax rates on software companies - and no idea how you'd do that. But the suggested financial angle - that I don't get.

Comment Re:Docker is... (Score 1) 49

Some of your questions make more sense than others. In the context of deploying, docker looks a lot like a VM deployment - except instead of having to build up a VM using chef, and with all the luggage that usually entails, the docker image tends to only be running the service. Imagine a linux kernel with only one process running. So there aren't a lot of edges to harden. Usually the service image gets launched in something that looks like a DMZ behind a firewall with a loadbalancer in front of it.. In our case it's a little wild west.

But part of the joy/ease of docker is that you build on some particular image. It would be easy to imagine an organization that was more .. organized than ours specifying a few base image flavors that developers would have to build off of - then you could harden those images all you wanted. I don't know that I would be a big fan of that, however. You can see where redhat supplies a lot of images, for example (

Concrete (semi bogus) example: you want to run redis (maybe on windows - where it's not trivial). There is a redis docker image:
"docker run -p 6379:6379 redis"
That will fire up a docker container running redis and will map the port on the image to the port on the docker host (usually localhost, these days). You can now connect to port 6379 and talk to redis. The container running redis is hard to describe - it's a full (stripped) linux system and it's only running that one process. You can fire up a shell on that container using another docker command and it has a bunch of the things you expect. Some shell (maybe bash or something lighter). Most of the filesystem stuff you expect. It's like a VM - if you built a VM to only run redis.

I don't know if any of this helps - it really is a weird concept - at least I had a really hard time wrapping my head around it. But I do love what I can do with it.

Comment Re:Docker is... (Score 4, Interesting) 49

Docker is a freeze dried VM with mappable ports and filesystem. It runs on several OSs on various platforms. I'm not sure what its killer feature is. It isn't just the ability to include libs with your program - it's a way to include the entire OS with your program - with all the libs and whatever else you need.

Things I do with docker:
* get rid of RVM/rbenv, NVM, and all those other version managers. Just fire up a docker container with the version of ruby/node/whaterver you want
* package up services for deployment (web apps in my case) and toss the image to devops/IT to deploy
* test tools/software I'm not familiar with - not sure if you want to install latest? fire up a docker container and take it for a spin. And when you're done testing, maybe just continue using the container.
* run things on platforms that don't support them. Want to run redis on windows? docker container. Want to run git hubflow on windows without installing extra stuff? docker container.

Comment WTF is Qubes? (Score 2) 73 claims (tongue in cheek) to be "Reasonably secure." Really it loos like they are all about the security, so this is kind of a big deal for them.
What is Qubes OS?
Qubes is a security-oriented operating system (OS). The OS is the software which runs all the other programs on a computer. Some examples of popular OSes are Microsoft Windows, Mac OS X, Android, and iOS. Qubes is free and open-source software (FOSS). This means that everyone is free to use, copy, and change the software in any way. It also means that the source code is openly available so others can contribute to and audit it.

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