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Linux Duracell CPU Load Monitor

Nixon8Pie writes "Know those little self-testing batteries? How would you like to monitor your computers load with them? Well, now ya can. 'These throwaway testers are quite clever: they use a layer of conductive ink that heats up when an electrical current runs through it, in combination with a layer of thermally-activated dye that turns transparent when heated up, revealing a third layer of colored ink underneath. Because the layers are printed with varying thickness from "0%" to "100%", parts of them become yellow before others, creating a bargraph effect that varies with the current applied, the battery's body itself sinking the heat produced by the conductive ink.' Pretty cool stuff."

50 of 327 comments (clear)

  1. Ah-may-zing by clifgriffin · · Score: 5, Funny

    So that's how they does it. I personally use my mouth. I'm sure I'll regret it someday.

    1. Re:Ah-may-zing by proj_2501 · · Score: 5, Funny

      What the hell kind of tongue do you have that can hit both ends of a AA battery?

    2. Re:Ah-may-zing by jon787 · · Score: 2, Funny

      My friend adam used his finger to measure the power left in a VersaPak battery (used in black and decker cordless tools) he regretted it.

      --
      X(7): A program for managing terminal windows. See also screen(1).
    3. Re:Ah-may-zing by Short+Circuit · · Score: 5, Funny

      My brother took one of those industrial-grade (you know, without the current limiter) 9-volts and put it on his tongue. He told me it didn't un-curl for several minutes.

    4. Re:Ah-may-zing by Short+Circuit · · Score: 2, Funny

      I think KISS sells them.

    5. Re:Ah-may-zing by TechnoVooDooDaddy · · Score: 5, Funny

      geeks need any advantage we can get with the ladies you know....

    6. Re:Ah-may-zing by jbuck · · Score: 5, Funny
      as a kid, I found testing batteries with my tongue was pretty efficient. And as a kid, the telephone line seemed to be a pretty low voltage application- even caller ID units needed a seperate 1.5v battery to get power, so how strong could the telephone line be, right? Plus the contacts were close enough to test with my tongue so why not? I needed to see if the line was live...

      WOW! now THAT was a JOLT! I would NOT recommend it to anyone. Save your tongue and find a telephone line tester!

      as a geek, you live and learn, you live and learn, I guess.

      --
      -whoa, I'm jones'ing for a sig right about now...
    7. Re:Ah-may-zing by Anonymous Coward · · Score: 5, Funny

      You are lucky it didn't ring at the same time.

    8. Re:Ah-may-zing by Anonymous Coward · · Score: 2, Funny

      Sometimes I wonder if there's one guy out there who's the brother or cousin of about a million different people, and he is the source of all urban legends, because almost every often-repeated story about somebody doing something collosally stupid in an entertaining way begin with "my cousin" or "my brother."

    9. Re:Ah-may-zing by Anonymous Coward · · Score: 1, Funny

      What the hell kind of tongue do you have that can hit both ends of a AA battery?

      Like this one or this one.

    10. Re:Ah-may-zing by Anonymous Coward · · Score: 3, Funny

      You forget that in the southeastern United States just about everyone is a cousin.

    11. Re:Ah-may-zing by AhBeeDoi · · Score: 2, Funny

      Images of Gene Simmons keep popping into my head. I'm afraid to go to sleep now.

    12. Re:Ah-may-zing by Anonymous Coward · · Score: 1, Funny

      You'd better be careful of what you say you can fit in your mouth around here, lest you have the GNAA knocking on your door.

    13. Re:Ah-may-zing by netringer · · Score: 4, Funny
      My cousin once put two 9-volts together pos->neg
      BEGIN --- Pathetic Geek story

      When I was a kid the Goldblatts department store would advertise very-very-cheap almost-dead-when-they-cross-the-dock loss leader imported 9 volt batteries for 9 cents.

      I bought two 10 pack boxes of them for a couple bucks, rusehd home, and connected them in series by snapping them together + to - to + ... in a lattice arrangement.

      Once I had all 20 together... and knowing that I had, *gasp* 180 VOLTS! at my disposal ... I connected some wires to from the ends to a 25 watt 117VAC household light bulb and marvelled as it lit up brightly and then dimmed as it drained the batteries completely in a minute or two.

      END --- Pathetic Geek story

      --
      Ever dream you could fly? Get up from the Flight Sim. I Fly
    14. Re:Ah-may-zing by Lifewolf · · Score: 4, Funny
      Plus the contacts were close enough to test with my tongue so why not? I needed to see if the line was live...

      Once, many years ago, a friend and I were in his parent's basement racing slotcars. He put his head on the track so he could watch his car zoom away, and the track lightly shocked his ear. Of course, as a regular test-the-9-volt-on-his-tongue kind of kid, he immediately had to try sticking his tongue to the track. Idiot.

      --
      "Be Happy or Die." -- AoN
    15. Re:Ah-may-zing by MrAngryForNoReason · · Score: 4, Funny

      It helps to tell yourself the current makes it sterile and non gross as you make out with the battery.

      Am I the only one that read that as "makes you sterile"?

    16. Re:Ah-may-zing by Anonymous Coward · · Score: 1, Funny

      Being able to put a phallic-shaped object all the way in your mouth and play with it with your tongue without concern for how painful it might become does not get you attention with the ladies, you know...

    17. Re:Ah-may-zing by adamjaskie · · Score: 2, Funny

      It was only 3.6 volts...

      --
      /usr/games/fortune
  2. Wow by Anonymous Coward · · Score: 4, Funny

    They must be using the batteries to run the site. Slashdotted already.

  3. Instantly slashdotted by Anonymous Coward · · Score: 5, Funny

    less than 5 posts and the French webserver has already surrendered.

  4. I hope he doesn't have one of those on the server by Peeet · · Score: 5, Funny

    that's hosting that website, or this could be the first slashdotting to start a small fire.

    Are you happy now? Y'all have slashdotted a battery.

  5. When I was a kid by Anonymous Coward · · Score: 5, Funny

    The only battery affordable meter we had was for 9 volt batteries. And it was your tongue! And we liked the small spark it gave you to tell you it was working!

    1. Re:When I was a kid by ZHaDoom · · Score: 5, Funny

      I remember putting two nine volts together and placing them in my sock. Keeped my feet warm while I walked uphill(both ways) to school and back in 6 feet of snow.

      --
      War isn't about who's right. It's about who's left.
    2. Re:When I was a kid by dustmote · · Score: 2, Funny

      Wow, that seems like an interesting method of beating the heat. Correct me if I'm wrong, but wouldn't that also give you a chance of much badness happening in your general foot area?

      --


      -1, "1337" speak
    3. Re:When I was a kid by ZHaDoom · · Score: 2, Funny

      Only a 1" x 4" area. The rest is fine.

      --
      War isn't about who's right. It's about who's left.
  6. The obvious puns by thewiz · · Score: 5, Funny

    "His design is utterly revolting!"
    "Shocking!"
    "If I add more power, can I overclock it?"
    "An electrifying hack!"
    "More power to him."

    --
    If "disco" means "I learn" in Latin, does "discothèque" mean "I learn technology"?
    1. Re:The obvious puns by Anonymous Coward · · Score: 5, Funny

      Ohm my, watt a clever hack.

    2. Re:The obvious puns by aanand · · Score: 2, Funny

      "Does it play Ogg?"

    3. Re:The obvious puns by Anonymous Coward · · Score: 1, Funny

      Gah, I don't have the energy for this.

  7. Ob American Smart*ss French putdown .... by Anonymous Coward · · Score: 0, Funny

    ... I guess those French servers just gave up when they saw all those requests coming. badda bing

    Sorry about that.

  8. Re:Useless on a quickly varying load. by MoonBuggy · · Score: 4, Funny
    Your points are valid, but to quote the article:
    There you have it : the most imprecise, slow, power-hungry, finicky and unreliable CPU load monitor in the world. Aren't you happy ? :-)
  9. that reminds me of a funny story... by morcheeba · · Score: 5, Funny

    one day I noticed the icemaker in our freezer made the sound it does before it drops the cubes into the bucket. So, I looked in to see if I could watch it work... then I noticed that an extra metal tube went under the ice cube mold. I thought, wow, that's kinda neat - they must circulate a little extra freon through there to make sure the cubes are super-cold*. So, I decided to touch it to see how cold it was. It turns out that it wasn't a cooler, but a heating element that was used to slightly melt the edge of the cubes to release them from the mold. And it was very hot.

    That's how I burned my finger in a freezer.

    (* I was thinking that didn't make too much sense because I knew icemakers were often add-on features, and replumbing the freon would be too complicated to do for an accessory)

  10. Re:Wow by fafaforza · · Score: 2, Funny

    Hope he didn't build a set to measure his throughput. It might overflow and explode.

  11. Re:System Monitor by Shut+the+fuck+up! · · Score: 5, Funny

    Cost for running system monitor: $0.0
    Time for setting it up: 00:00:30

    Cost for Duracell load monitor: $9.95
    Time for setting up: 04:21:23

    Slashdotting the French: Priceless.

  12. Re:Too Much Time by mph · · Score: 5, Funny
    My god I wish i had that much time on my hands. I barely have time to eat when I get home before I go to bed...
    Of course, eating and sleeping fall somewhere below "posting to Slashdot" on the priority list.
  13. Tongue as battery tester. by Futurepower(R) · · Score: 5, Funny

    You put a wet finger on the negative end and touch the postive end with your tongue. For 1.5 volt batteries only. Don't try this on 90 volt batteries.

    1. Re:Tongue as battery tester. by Jahf · · Score: 2, Funny

      90 volts? That would fry some braces :)

      --
      It is more productive to voice thoughtful opinions (reply) than to judge (moderate) others.
    2. Re:Tongue as battery tester. by stratjakt · · Score: 5, Funny

      When's the last time you saw a C cell used in anything besides a dildo?

      I'm serious.

      Thats the only reason they exist.

      --
      I don't need no instructions to know how to rock!!!!
    3. Re:Tongue as battery tester. by Fishstick · · Score: 3, Funny

      you're doing something wrong - mine uses D-cells ;-)

      --

      There is much cruelty in the universe, John.
      Yeah, we seem to have the tour map.

    4. Re:Tongue as battery tester. by Necrobruiser · · Score: 5, Funny

      You really should reconsider what "toys" your kids are playing with... ;)

      --
      "I planned within my means and got a fixed rate mortgage, so where's MY bailout?" -cafepress
  14. Netcraft has confirmed: Duracell is dying by KLP-2002 · · Score: 3, Funny

    It is now official - Netcraft has confirmed: Duracell is dying

    Yet another crippling bombshell hit the beleaguered Duracell community when
    recently IDC confirmed that Duracell accounts for less than a fraction of 1
    percent of all servers. Coming on the heels of the latest Netcraft
    survey which plainly states that Duracell has lost more market share, this
    news serves to reinforce what we've known all along. Duracell is collapsing
    in complete disarray, as fittingly exemplified by failing dead last in
    the recent Sys Admin comprehensive networking test.

    You don't need to be a Kreskin to predict Duracell's
    future. The hand writing is on the wall: Duracell faces a bleak future. In
    fact there won't be any future at all for Duracell because Duracell is dying.
    Things are looking very bad for Duracell. As many of us are already aware,
    Duracell continues to lose market share. Brown ink flows like a river of
    shit.

    Let's keep to the facts and look at the rumors.

    Cum laude Theo states that there are 7000 users of Duracell. How
    many users of Caldera are there? Let's see. The number of SuSe versus
    Caldera posts on Usenet is roughly in ratio of 5 to 1. Therefore there
    are about 7000/5 = 1400 Caldera users. Connectiva posts on Usenet are about
    half of the volume of Caldera posts. Therefore there are about 700 users
    of nig cum. A recent article put TurboLinux at about 80 percent of the Duracell
    market. Therefore there are (7000+1400+700)*4 = 36400 TurboLinux users.
    This is consistent with the number of TurboLinux Usenet posts.

    Due to the troubles of SCO, abysmal sales and so on, TurboLinux
    went out of business and was taken over by SCO who sell another
    troubled OS. Now SCO is also dead, its corpse turned over to yet
    another charnel house.

    All major surveys show that Duracell has steadily declined in market share.
    Duracell is very sick and its long term survival prospects are very dim. If
    Duracell is to survive at all it will be among OS hobbyist dabblers. Duracell
    continues to decay. Nothing short of a miracle could save it at this
    point in time. For all practical purposes, Duracell is dead.

    Fact: Duracell is dead

    --
    GNAA rocks - cumming to your town soon!
  15. battery/CPU meter by RY · · Score: 2, Funny

    I wonder if the CPU meter is showing max load now?

  16. You answered your own question by ackthpt · · Score: 2, Funny
    And why the heck is anyone doing a dumb project like this? I mean sure, it's neat, but its entirely impractical.

    Next!

    --

    A feeling of having made the same mistake before: Deja Foobar
  17. Low Battery! by shaark78 · · Score: 1, Funny

    Looks like they need to change the batteries on the webserver.

  18. Math by HarveyBirdman · · Score: 1, Funny
    Some of them turn bright orange. Fun for all, unless you like math.

    But... but... but... I like math AND destruction!

    --
    --- Ban humanity.
  19. YOU KNOW YOU HAVE BEEN READING ./ TOO LONG WHEN by Anonymous Coward · · Score: 1, Funny

    you see this error message: "You've reached your maximum number of comments you can post: 30 comments over 4 hours."

    Awesome. Saw it for the first time today.

  20. in case you can't get to their site anymore... by Anonymous Coward · · Score: 3, Funny

    For those of you who noticed the site's not available, there's a little bar graph on their server.

    Here's a live feed:

    E |==============X| F

  21. Re:System Monitor by dk.r*nger · · Score: 2, Funny

    There are some things in life, that are simple, obvious and easy to do.

    For everything else - there's Slashdot.

  22. simpsons ref! by caveat · · Score: 1, Funny

    Bonnnjjjjooourrrrrrrr, ya cheese-eating surrender monkeys! Meet Slashdot!

    --

    Facts do not cease to exist because they are ignored. - Aldous Huxley
  23. Get some thermochromic ink by ColaMan · · Score: 2, Funny

    If I was a heatsink manufacturer, I'd .....

    1) Write on the side of your CPU heatsink the words "If you can see this , it's too hot!"

    2) Paint that side with black thermochromic ink that changes temperature at 60 degrees C.

    3) Profit!!!

    Or, as the temperature drops from the bottom to the top of the heatsink, you could put things like "cool..." "warm..." "warmer..." "Hot..." "FUCK!" up the side of the heatsink. One glance and you'd know. Handy for those clear cases ;-)

    --

    You are in a twisty maze of processor lines, all alike.
    There is a lot of hype here.