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About Rasori

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  • Birthday 04/04/1990

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  • Location
    US, Connecticut, in a place I like to call Cow Town
  • Interests
    Pretending to know what I'm thinking about, "Developing new concepts and proving their merit" *coughsureyeahcoughrightcough*
  • College Major/Degree
  • Favorite Area of Science
  • Biography
    I'm boring, to say the least
  • Occupation
    Student, hope to become an Aeronautical Engineer
  1. I've been trying to get this post up, but I've been travelling: I've actually been thinking about Xittenn's suggestion quite a bit and I'm trying to determine if it really is optimized. Say each customer has a list of Vehicle references (presumably primary key values for the corresponding vehicles). To then pull up the information for those vehicles still requires a query on the entire database of vehicle entries, does it not? Whereas before the query was (in pseudocode) "get all VEHICLES where OWNER is Owner_Name," now isn't it "get all VEHICLES where PRIMARY_KEY is one of [PK_Values]
  2. Hi all, I'm trying to find out how to establish when to optimize for processor usage versus memory usage. In the application I'm working on it's not actually a big deal (not large-scale enough to worry about) but I'm curious how it's decided for more critical tasks. The situation is something like this: Vehicle X has Customer Y, where Y is the Owner of X. It would be possible for each Customer Y to have a list of all Vehicles they own stored within them. Which would be preferred: the increased memory usage of having each Customer Y list all Vehicles they own, or the increased proces
  3. Haha you guys take the fun out of passing time with idle thought. Of course I could use two different screwdrivers, but that eliminates the project aspect of it all. The concept is to enable someone like me who does a lot of tinkering, sometimes with sensitive electronics and other times just pulling stuff apart, and who gets attached to that particularly comfortable ratcheting screwdriver, to get both options with low hassle. The end result would, in my mind, be a single ratcheting screwdriver, with one set of tips, which could be both magnetic or non-magnetic depending on requirements. I
  4. Hey all, I've been toying with the idea of an electromagnetic screwdriver, allowing for the convenience of a magnetic tip and the sensitivity of a standard tip. Yeah, forgive me, I'm bored. Anyway, toying with the idea I've been wondering about power. I'm sure I can make an electromagnet with batteries, and given the low mass of the screws, probably (haven't gotten around to testing it yet) even with just one AA or similar. Worst-case, I've been reading that D-cells are quite useful in these things. What I've been wondering is if it would be possible to use a capacitor bank. I know the
  5. Cool. I've got some work to do for school, but I'll probably work on transferring it over tonight. I'll let you know if anything goes wrong. Merged post follows: Consecutive posts mergedThe importing of my blog was quick and painless. Only complaint is that it imported my tags as categories . That said, I'm liking the features I didn't know I didn't have, and I'll be able to change from categories to tags in the near future. Thanks, SFN!
  6. What version of Wordpress is this using? I'd happily transfer my blog over (presuming programming counts as science enough) but I've been posting daily for just over a month now on Blogger and I'm finding that only Wordpress 2.2 and above can import from the current Blogger.
  7. Hi all. I'm working on a little simulation-like game, basically an excel spreadsheet on steroids that relies on player interaction and creativity for the fun bits. Ignoring whether or not the game itself would be fun, I've come across a couple of questions. If you need more information, feel free to either ask for it here or check out the pertinent posts on my blog to see if you can see where I'm going. First question is about JButtons. I have a series of buttons, standard "add one," "fill," "subtract one," and "empty" buttons. They're to be labeled simply with "+", "+ +", "-", and "- -" r
  8. The electricity would be used to power a very powerful laser or something like that. I'm not entirely sure how they create black holes, but allegedly they already happen in labs on occasion, it mostly has to be scaled up slightly. In terms of the radiation, the suggestion was to use a parabolic mirror I believe--anything already going away from the ship provides thrust just like any other engine, and anything going towards the ship bounces back and also provides thrust.
  9. Aha. That, my friends, takes the cake. Simple yet perfect (and blatantly missed by me). Thank you very much!
  10. The temporary table won't be deleted on the client logging out? That was the understanding the link gave me. If not, sweet and thank you, but if it does I may need to fall back on manual labor (or some jury-rigged scripting, which is really what programming is about to me anyway ). It does certainly seem that a view is not going to work. I'll do some more research on temporary tables.
  11. I read about this recently in NewScientist (no claims are being made by me on validity of any source). From what I read it sounded feasible and certainly interesting, but it's one of those things where "feasible" means that I understood what was being said, not that I verified the facts he used. The biggest drawback was the power needed to create the black hole. Something on the order of a gigantic solar panel pretty close to the sun being able to produce a large enough power source once every 3 years? Still, more feasible than travelling the stars with the technology we're currently u
  12. Hmm... A useful tool but I don't think it's going to work for what I'm looking at (it is, however, entirely possible that what I'm looking for isn't going to have a nice solution). I'm thinking more of something that can be initiated, say, on Saturday, and then will have the same values through to Friday night, where it will be updated to new values. [Edit: this would be through potentially multiple iterations of a client logging in and out, hence why the temporary table doesn't seem to fit my needs] In honesty, because of the scale of what I'm looking at (read: very small), it may be
  13. I'm just kind of playing around with programming, I've gotten a relatively solid grasp on Java and eventually decided what I actually wanted to do with it. Then I realized that, for my program I need a database. SQL has been the best option so far, but I need to find out if I can make a view that doesn't refresh when its referenced tables are updated. Alternatively, if I could make a table that is based off of the values of another table (only at the time of creation), that would also be acceptable. The basic concept is to create a view that allows a user to see selected pieces of a ta
  14. I'm actually specifically unclear about the start-up. According to a brief google search, yes, latch is what I'm talking about. Null is my own terminology, I guess (I've been playing with programming too much lately). Basically, when a system containing an S-R Latch is first started (batteries freshly inserted and everything), I don't understand how the NAND gates have any output at all, as they're based off of two inputs and only receiving one. The second input to the NAND gate is inherently dependent on the past values of the other input, of which there are none. As I think about it
  15. I've been doing some digital electronics in my studies lately, and I'm just not getting this part. Well, rather, I can do all the work just fine, I'm just not understanding something that my lecturer claims is unimportant. I'm sure many of you know what it is, but to make the problem I have clear I'm going to explain: S NAND (NOT)Q = A = Q R NAND Q = B = (NOT)Q They both seem simple enough, but I'm not getting how it /starts/. On start-up, S and R are defined, but I can't fathom how S[or R] NAND (NULL) gives a value at all. My best guess would be to set S and R = logic 0 to start
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