tmd

Also not an expert on the topic but here are some examples of space-ready cameras with pictures and specs: http://www.msss.com/space-cameras/

Obviously radiation, extreme temperatures, vibration, and vacuum are at least some of the problems. They explicitly state that lens have no moving parts, I’m not sure why that is an issue and how can they focus without moving parts - maybe they’re just permanently focused on infinity and hence close objects are blurrier?

Lens distortion might be just normal with uncorrected very wide angle lens which you want to make framing/steering easier. Otherwise you might need a separate camera just to help you aim the first one.

> But – and here is the great sleight of hand – the Bank has seen fit not to include house prices in its measures of inflation. So, throughout the 90s and 00s, they could then “prove” inflation was low or moderate and interest rates meandered lower.

Aren't rents included in the CPI? I would be surprised if they weren't since it's a pretty huge part of most people's monthly expenses.

Then it would either mean that the rents rose along with the house prices (in which case this effect is included in the inflation figures) or that the actual housing costs didn't increase -- it's just less profitable to buy and more to rent.

A lot of old-school financial advice seems to focus on the importance of saving and avoidance of debt. It seems reasonable but I always wonder how applicable that is in the modern times with our record-low interest rates. Short look at the tables in [1] suggests that, for example, you could gen 5% after-tax real returns on government bonds in the 19 century. Today, that would be unthinkable.

[1] http://efinance.org.cn/cn/fm/The%20Equity%20Premium%20Stock%...

Docker storage engines remember all the layers by storing incremental differences so it makes little sense to have a layer that only removes things (like the last RUN in https://github.com/iron-io/dockers/blob/master/ruby/Dockerfi...). You can see with `docker history <image>` that this layer has 0 bytes and you can access anything that it removes by using the parent image (`docker run -it 88ae7e32865f ls /var/cache/apk`).

In this case it doesn't make much difference (a couple of MB perhaps) but often you'll see people chaining all the commands and ending it with a cleanup in a single RUN like here: https://github.com/docker-library/ruby/blob/ccbf9e54f60ba245...

> IPv6 has massively increased the number of available IPs, allowing every sensor and relay within a system to be addressable from the public internet

That's a really scary idea from the security point of view and something that bothers me about the IoT craze. Every consumer device visible on the Internet should quickly and reliably self-update its software if a security issue is found and remote updates are still a bit tricky to implement in embedded devices (little storage, diverse hardware).

You're right but I wouldn't like that even as an employee (which I am). Imagine your that your team triples in size and everyone is in some kind of part-time arrangement that makes it difficult to synchronize any kind of real-time communication. Horror.

Number of hours worked per week is not everything. I suspect that Americans do work less over the whole lifetime -- the retirement age has decreased (at least for men, see [1]) while life expectancy is increasing. The problem is that it's impossible to estimate total hours worked over lifetime for people presently in their 20s-30s and current pensioners give you a delayed statistic.

Personally I think that economy based on a 15-hour work week would be sub-optimal. Total salaries being equal, I'd rather employ a single person working 40 hours than three working 15 where you need to deal with lots of communication and administrative overhead.

Maybe the solution would be taking multiple "gap years" during your career or "mini retirements" but many employers don't like holes in your CVs.

[1] https://www.soa.org/News-and-Publications/Newsletters/Pensio...

I think that there might be huge value in neurobiofeedback but it's a mistake to brand these devices as an aid to what essentially is a religious practice for many people. Just studying the comments in this thread shows that the sole idea of such a device seems blasphemous for some.

Perhaps it would be better to call it a concentration exercise or a brain fitness trainer, especially since it's not even clear that these devices help you with mindfulness (whatever it might be). I tried to find some reviews of Muse done by experienced meditators (I haven't collected the links, sorry) and the results seem mixed. Some claim perfect score on the first sitting, some say they get the same bad results as everyone else starting out with the app. That would suggest that either the device doesn't really do what it claims or that meditation means so many different things to different people that it's not a useful term to use in a scientific context.

It's not just the US doing it. I always read newspapers from both sides of the pond and it was especially entertaining during the big financial crisis. Many European publications acted as if the US is collapsing but Europe will be largely unaffected and American ones anticipated swift recovery for the US and deep EU crisis. Even newspapers that you wouldn't normally associate with nationalistic sentiments (like the New York Times) engaged in some serious fear-mongering.

People also respond to these kinds of messages. I visited the US this August, when the euro crisis was often making the news. Several people were seriously and non-sarcastically concerned with my capacity for paying for my own lunch or hotel. They were very surprised when I told them that the euro is worth more or less the same as always in relation to the dollar.

After having lived 4+ years in Germany and struggling to learn German, I would say that the only way you can learn truly by pure immersion is from your parents. In any other case you need at least some theoretical basis because no one else is willing to spend hours trying to communicate with someone who's basically babbling.

I'm using Duolingo now and after I'm finished with it I want to get some formal classes to (hopefully) get to a B1 level. I wouldn't call Duolingo immersion learning though -- they explicitly provide grammatical rules (unless you're using the mobile app which lacks some features) and it's very difficult and frustrating to try to do it with your intuition alone.

I also liked the explanation of cases and adjective endings from this site: http://yourdailygerman.com/learn-german-online-course/

It responds "No" to (10000000000000000, 10000000000000001, 10000000000000002) so the rule is not so simple after all :)

Take no offense, I sympathize with the general idea, but aren't you overselling this a little bit?

I've had no contact with Adderal but I highly doubt a dietary supplement essentially equivalent to ~10 cups of black tea could be an alternative for amphetamines. I sometimes drink a big mug of tea a couple of times a day and, according to a rough estimate, possibly get around that amount of caffeine+L-theanine.

I see that you're trying to attract Adderal-using college students but aren't you afraid they're going to try your product and quickly conclude that Adderal is better?

I have always suspected that I need more sleep than other people. When I tried to live without alarm clock I slept for 9-10 hours every night. It seems to be an enormous waste of time so I usually schedule an alarm after 8 hours.

It never occurred to me that one can measure whether the amount of sleep received is right. I just downloaded PEBL (http://pebl.sourceforge.net/), an open source software that includes the P.V.T. test (mentioned in the article) in its battery -- an you can adjust lots of test parameters simply by editing ppbt.pbl. Seems to be working fine (though the test itself is boring and tedious). I'll measure few times a day and try whether 8 vs 10 hours makes a difference in my case.

It's really good to show some sense of humor but the number of easter eggs in Wolfram Alpha is starting to surpass the number of potential helpful use scenarios. It's still more like an advanced calculator than a "computational knowledge engine".

> country of origin is NOT a reason why some people remain poor. Carlos Slim Helu is SOLID PROOF.

This is probably obvious to everyone here but I'd like to point out that one case out of a 100-million population is statistically completely insignificant. He is not a solid proof of anything.

This is so far my favorite feature of the English language. Formal forms in the grammar are a relict of feudal type of thinking and in modern times they are not only redundant but also harmful. Need to choose between formal 'you' and informal 'you' leads to lots of awkward social situations. If you apply informal 'you' to someone older and who you don't know well it is usually a conversation breaker. If you use formal 'you' when speaking with a coeval it may look like you're patronizing him. Women sometimes get offended because they think you consider them older than they really are, and so on.

Also, when you start addressing someone using formal forms it is very hard to switch to informal 'you'. Using these forms affect human thinking and after you have already addressed someone formally (because it was in a professional situation for instance) you are not likely to become friends. In some cultures there is a special complex social protocol for switching from formal 'you' to informal one. This ceremony is sometimes called using a German word 'Bruderschaft' and for some peculiar reason it often involves kissing and drinking alcohol. This, rather unfortunate, photo captures such situation: http://imgur.com/pmf57.jpg

As I find it significantly easier to develop social relationships in English, I often wonder whether this lack of formal 'you' contributes to the economical prosperity of the English-speaking countries (and esp. the even less formal US).

This is actually closer to the reverse of visual programming -- we create diagrams by providing their textual representation. I really like the idea. Every time I need to deal with some UML or diagram application I have an impression that generating diagrams from skeleton source code would be easier than the other way round. Tools like the built-in Visual Studio modeler, which updates the diagrams in real time, are also a step in good direction.