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Submission + - Alien Planet Made of Diamond Discovered (space.com)

bs0d3 writes: A newly discovered alien planet that formed from a dead star maybe comprised of diamond. The planet probably formed into diamond from carbon which was under extreme pressure, it's 5x the size of earth and orbits a fast pulsing neutron star.
Linux

Submission + - What We Know For Sure on Linux's 20th Anniversary (linux.com)

jennifercloer writes: Jim Zemlin writes: Linux continues to prevail and today is the largest collaborative development project in the history of computing. This is because of one fundamental principle: Freedom. Richard Stallman helped us understand long ago what freedom means as it relates to software: the freedom to use the software for any purpose, to change the software to suit your needs, to share the software with friends and neighbors, to share the changes you make to the software. These ideas today are the fundamental building blocks for making the world’s best software and enabling innovation across industries and around the globe.

So what do we know for sure today, on the 20th anniversary of Linux? That we are on the right side of history. That products and technologies come and go but freedom endures. And because of that, we know that Linux will be the fabric of computing for decades to come.

Comment Re:I have a question (Score 1) 403

In fact once someone has one of your Bitcoin addresses, they'll be able to see and track all transactions involving that address, including "shuffling" into new addresses. One can even construct a whole graph of transactions starting from some known bitcoin address since the chains of transactions are absolutely transparent for everyone. I guess it's a dream come true for the intelligence and data mining agencies.

And yes, the only way to opt out of that transparency is to use the laundry and mixing services - the chain of transactions ends once you put your sum into the service and retrieve them back - since you (most probably) will get other people's coins. Just be careful not to put too much since you may get back your own coins. Also, such mixing service may not be free.

This article discusses transparency and anonymity issues well:
https://en.bitcoin.it/wiki/Anonymity

Comment Re:Don't pay so much attention to Joel Spolsky. (Score 3, Interesting) 289

Yes, I never understood why so many pay attention to Joel's inflammatory rants.

I don't even want to start on his company's product (Fogbugz). Seriously, ASP/VBScript translated to PHP? And then inventing a new programming language just for a web app with ability to output in several other languages? Ugh.

Comment Re:Allergic reaction to MySQL (Score 1) 271

Do you know the cost (salary or consulting) of a MySQL expert? How about the cost of optimizing for that one database, tying yourself down to it with non-standard SQL?

But now they are optimizing for another, even less standard database (Cassandra), tying themselves down to it with non-standard query syntax. What was your point again?

Comment Re:Allergic reaction to MySQL (Score 1) 271

Hardware is generally cheaper than developers -- especially the really rare MySQL wizard that groks the SELECT procedure deeply enough to be able to rewrite them to use fewer disk seeks.

The thing is, the stuff they missed in their SQL queries doesn't even need a MySQL wizard in blue cape to grok. There were no JOINs, no subselects, nothing high SQL magic at all - an average self-taught DBA would spot the suboptimal index usage. They should have totally solved it themselves.

I was just casually browsing this article because I don't know much about DBs, but if you tell me that there's a problem that can be solved by throwing more hardware at the problem or hiring a very skilled optimizing DBA, I would take hardware 19 times out of 20. I'm not disputing the software solution is technically feasible, just that it seems like a risky bet.

The funny thing is that they still can't skip "a very skilled optimizing DBA" step even with the NoSQL solution. They still need a database architect, and they still need to optimize their queries. But this time, finding a good DBA would be much harder since I imagine the number of NoSQL specialists (and in them the number of experts specializing in Cassandra) must be much lower than the number of good MySQL DBAs.

Of course, now that they have a system that supposedly scales with a simple addition of new hardware to the farm, they may get away from optimization for some time - if their DB architecture is good.

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