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In Scala, there are both mutable and immutable data structures. Immutable data structures are preferred, however there are some cases in which a dash of mutability can simplify the…

In Scala, most variables should be val (i.e. constant) from a design perspective. That is, it is better, in Scala, to write code that does not have changing variable. Thus, using v…

However, this is susceptible to a man-in-the-middle attack, still. A malicious man-in-the-middle could simply send an old timestamp which was already validated. The best alternativ…

When looking to improve your programming ability, it's important to ask for what end you are improving your skills. If your goal is to become a professional computer scientist, the…

This is blatantly wrong: "red means bad and green means good. This association is cross-cultural, probably universal, and probably as old as the hills: red as blood, green as grass…

Since the siding is no longer metal, does that mean that it no longer acts a a Faraday cage, and will be susceptible to damage by lightning?

According to the white paper, "all users receive all messages." How, then is the system scalable to a large network?

If you have FIOS, enabling WPA2 breaks their router, and tech support won't help, claiming that WEP is "just as secure as a wired connection"

It looks like the keyboard and mouse shown are made by Apple.

This is certainly not an issue with iPads, specifically. Students probably spend more time using computers for entertainment and social networking than they do for school, but that…