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User: SEWilco

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  1. Re:This Guy Built The Periodic Table Table... on Periodic Table Table · · Score: 1

    On our way to Helium next week, tomorrow we look at Deuterium.

  2. No Glue, No Stress on Periodic Table Table · · Score: 1

    The table itself is one large piece. The different types of wood are in the labeled tiles, which are not glued to the top. The tiles have plenty of room to expand and are free to do so.

  3. Woodburns on Periodic Table Table · · Score: 1

    Do we all know what happens when the condensed water from a glass hits Sodium?

  4. Today's Technology History Lesson on Periodic Table Table · · Score: 1
    "an arrow shot from a compound bow at about 15ft per second can puncture a bullet proof vest"

    The youngsters here might appreciate being reminded that it was the English longbow which caused the death of the knight in shining armor. This large bow was easily able to penetrate armor, so a column of armored fighters on horseback became a large target rather than the medieval equivalent of a tank.

    ("on horseback" used instead of "cavalry" because the latter is based on a philosophy of quick mobility, and an armored horse can only briefly be quick or mobile)

  5. Viral Viruses on Viruses Enlisted as Nano-builders · · Score: 4, Funny

    Can they GPL their technique, so they have a viral viral product?

  6. Re:Water fight anyone? on Fire Extinguisher Balls · · Score: 1
    A fireman with a bandolier full of them? 3 pounds each...he wouldn't move fast.

    How about a truckload next to his trebuchet?

  7. Start with SQL-Ledger, not raw DB on Medical Billing Software Alternatives? · · Score: 1
    There are other replies which point out existing med software, but if you want to write something you don't have to start at the raw SQL DB level.

    SQL-Ledger is open Perl Web acctg software using PostgreSQL (or other transaction DB).

    It doesn't have much for billing, but at least it has some accounting components to build on.

  8. Faster...Stronger...Better... on Build a PC Inside of a Mac · · Score: 2, Interesting
    "Finding a cheap 9" monitor would be a nice trick, too."

    Isn't there enough room around the edges to bolt a 10" LCD panel in, then just configure to use the visible part?

  9. Re:Posted already? on Virtual-U (SimUniversity) Now Available · · Score: 1
    "... it might give some insight into the "bureacracy" and "red tape" that are experienced in so many large institutions"

    So the game makes you wait in line for two hours during registration time? Or do you get to design paperwork and the 80 steps required to process it?

    "decisions that will effect thousands"

    Yup, that sounds like the real Taco.

  10. Weapons NEEDED To Open Space on Transforming Orbit Into A Wasteland · · Score: 2
    I'm also sure that the military has thought about this, as it is their job.

    Weapons are needed in space so it can be better used.

    Until recently, only a few governments controlled the trickle into space. Private companies are now able to launch rockets, and even more will gain access as various launch technologies are completed.

    Military agencies want to protect their country. The military will want the ability to protect against malicious use of space. Space-oriented weapons are needed before governments will reduce restrictions on private access to space.

  11. Re:speed of sound?? on Establishing the Maximum Speed of a CD-ROM Drive · · Score: 1

    If you had read the article, you'd have seen that the experiment was performed at Epsilon Omega City, which being at a high altitude has a faster speed of sound.

  12. CD-ROM file fragmentation on Establishing the Maximum Speed of a CD-ROM Drive · · Score: 3, Funny
    "there is no fragmentation of cdroms as they are used more and more..."

    ...although there is fragmentation of CD-ROMs as they are spun faster and faster...

  13. Re:Who would want one? on Establishing the Maximum Speed of a CD-ROM Drive · · Score: 2
    "The biggest problem with these sort of drives is seek time."

    Well, with these sort of drives. There are three other obvious technologies to speed up reading:

    • Spin the laser, not the disk. There are plenty of ways to make a laser beam scan a surface. However, an optical path tends to require more space than present designs, so there is a speed versus size issue.
    • Scan an image of the disk. Use camera or scanner technology to create a digital picture of the entire disk. Then you're limited by the speed of the scan and the speed of your software which reads the data out of the image.
    • More heads. Hard drives (and drum storage) have used this method for 30 years. There just aren't as many of these drives as those with single heads.
    "a CD with a 640 MB Cache" This was done back around the time of the 2x CD-ROM. Faster CD drives made the product vanish from the market...and 640 MB was expensive back then...
  14. Article? Text? on Scientific American on Television Addiction · · Score: 4, Funny

    Isn't this story available on the Discovery Channel or some TV show?

  15. Re:Off topic, but started on topic. on Satellites on the Cheap · · Score: 1

    Well, if you don't like the slashcode then download it and fix it...

  16. Re:The $50,000 is a misnomer on Satellites on the Cheap · · Score: 1
    "... cheap high-atmosphere/LEO weather satellite? Their design could be used to create a "Twister-esque" system of satellites. So, rather than sending up one extremely expensive satellite, we could send up thousands of smaller satellites to do the same task, but covering much more area."
    Well, the three major weather satellites each view about 1/3rd of the Earth. They do have an oblique angle of the poles, but basically view the entire globe. So what does "covering much more area" than the entire globe mean?

    :-)

  17. Re:It's not a virus, it's stupid. on Linux Virus Alert · · Score: 3, Funny

    Another success of open source code. People are improving the code within hours.

  18. It's Only Software on Is That A Railgun In Your Pocket PC? · · Score: 1

    When I saw the headline I thought this was a hardware add-on article.

  19. Re:Speculation on Interview With a SETI Astronomer · · Score: 1

    Well, right now there are thousands of Slashdot readers operating in parallel attempting to extract hidden meanings from the interview.

  20. Re:I suggest on Swaying CPU Fans · · Score: 1

    Unfortunately these fans are merely fanning the invited flames. A cluster of these stories would be a fire hazard.

  21. Re:Cold Air Return on Home Server Rooms? · · Score: 1
    Have the house air conditioner be large enough to also cool the server room. Then simply adjust the flow of the vents so the correct percentage of cool air will flow to the server room (there usually are dampers inside the major vents for performing this balancing).

    In the winter, just close the vent from the furnace to reduce how much hot air enters the room. The dampers inside the vents determine the maximum airflow to different parts of the house, but the actual airflow can be adjusted with the louvers/dampers at the grille.

  22. Cold Air Return on Home Server Rooms? · · Score: 2, Insightful
    Yes, I think that's the key. Have a "cold air return", one of the vents which the furnace fan sucks air from, in the server room.

    Usually a "cold air return" is near the floor, as it's intended to remove cold air in the winter. In your server room, have that air return vent connected to openings near the floor and ceiling. Install the type of grill which can be opened and closed, so you can adjust how much air gets pulled from the top and bottom of the room. This lets you keep air circulating, but you now can remove hot air more easily.

    Make sure you also run a vent from the furnace to that room, and again have an adjustable grill so you can control how much air enters the room. In the winter you probably want to nearly close it, and allow more of the house air to be drawn through the warm room.

    The last thing you need is a Fan Always On switch. Sometimes there is one on the furnace, and sometimes there is one in the thermostat. Leave the fan always on, so you keep air moving and even out the differences.

    Last, consider an electronic air filter. This is an electrostatic device installed next to the furnace, in the cold air return. It's a couple of hundred dollars, but it removes well over 90% of stuff floating in the air. If your fan is always running, you also keep running the air through so it is kept nice and clean. You just have to wash the metal filters, no disposable filters to buy. Less dust in the computers.

  23. Another Online Source on The Left Hand of Darkness · · Score: 1

    Half.Com also has some copies of that book listed. Most are used. Half.Com is a distributed bookstore: they act as an intermediary between buyers and many independent sellers. (Similar to eBay, but Half also handles the payments)

  24. When Hacking Included a Hacksaw... on Is Hacking Cars a Thing of the Past? · · Score: 1
    Anyone else remember when one could adjust the carburetor, adjust the spark gap, bolt on a different carb, or connect more speakers to the radio?

    Now there's a computer running the fuel injection, firing the spark, there's no carb to fiddle with...and if you try to do something to the radio you're likely to trip an antitheft device and make it quit working.

  25. Patented? on Launching Spacecraft From Aircraft · · Score: 1

    I wonder what they patented. Maybe they patented their pneumatic launcher, rather than using the military's launch method of tossing the parachute out the rear cargo door.