Week two of Tom’s training is similar to week 1, but instead of being down on the production floor, he is spending a week in our test lab.  Our lab measures all aspects of clubs from loft, lie, and weight to thickness, durability, and even the sound each club makes.  They are also constantly running player and robot tests comparing our clubs to the competition.  We want Tom to be an expert on all of this equipment.  I still haven’t really worked with Tom, so I don’t have much to say.  Here are his comments:

Hi all, I’m progressively getting closer to my desk and the job that I was actually hired for.  This week, I am at least in the R&D department and occasionally see the others in my research group, but as was mentioned I am working in the test lab.  The lab does all of the experimental testing that is required of CG clubs and competitors’ equipment.  I was exposed to everything that is done, but I was asked to focus on golf club shafts.  It seemed that everyone had been planning this because there were about 60 shafts – that needed to be catalogued and tested – waiting for my arrival.  I can do all told about 15-18 in a day if it is all that I do (I’ve gotten pretty efficient).  I finished about 35 and left the rest for someone else…sorry to everyone in the lab.

Part of my training as a new hire is to analyze the set of clubs that I currently play with in order to determine from an engineering stand point why these clubs are incorrect for my game.  This required me to hit every club in my bag in front of our TrackMan.  This took an entire day out at the range and was very exhausting.  Someone, who shall remain nameless, told me that I had to hit 10-15 good shots per club in front of the equipment in order to have enough data.  So, a little non-brainteaser math, 10-15 good shots times 12 clubs equals…well it was a lot and my arms are still sore two days later, but I did get to spend my entire work day hitting golf balls at the driving range so no complaints.

In the past week, I was shown how to test everything that can possibly measured on a golf club.  From simple quantities such as weight and length to more advanced experiments such as sound testing and EI/GJ analysis (shaft stiffness and torque profiles).  It was a good weak, and I actually felt like an engineer.  Getting closer!

In terms of last week’s logic problem, I got some really good responses.  Thanks to all who posted an answer.  Congratulations to C. Evans for being the first person to get the correct answer.   See last week’s blog to read all the creative responses. http://blog.clevelandgolf.com/?p=566.  Many people said to weigh one coin from each machine, then remove one coin at a time, but that takes multiple measurements, and you were only allowed one weight measurement.  As many of you answered correctly: you have to weigh a different number of coins from each machine, then see how light the total is compared to what it should be (ex. If the total weight is 5 grams less than what it would be if they were all were 10 gram coins, then the machine that you weighed 5 coins from is defective).

I wanted to add that my personal favorite solution to the brainteaser was to put the coins in a vending machine to see which coin was returned.  Kudos…creative and humorous.

Below is this week’s problem.  Like John said last week, the first person with the correct answer wins a Cleveland Golf Tour hat, and everyone who attempts gets entered to win a specialized “First Run” CG15 wedge (one of the first 250 CG15’s ever made).

(From John – If you comment twice to the same post, you will only get one entry, but if you comment to every blog you can get up to 5 total entries.  Try to make the comments interesting though…)

Attic Light:  You have 3 light switches in your basement and one of them controls a light in your attic (the other two do nothing).  You have to figure out which of the 3 switches controls the attic light, but you are only allowed one trip up to your attic.  You can’t see the attic from your basement, and you’re not allowed to use any equipment or people to help you (no multimeters, video cameras, etc). What do you do?

Categories: R&D, THE LATEST

34 Responses so far.

  1. Zack Holden says:

    do all three at once.

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  2. carlos oyerbides says:

    flip the one that says “Attic”

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  3. John says:

    Turn the first switch on, wait five minutes. Turn it off. Turn the next switch on, go up to the attic.
    When you go upstairs, one bulb will be cold (the switch never turned on), one bulb will be warm (the switch you turned on, then off), and one bulb will be on (the switch left turned on).

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  4. John K says:

    Turn switch 1 on and then wait for a couple minutes.

    Turn switch 1 off and switch 2 on.

    Go to the attic, one light bulb should be on, that’s switch 2.

    Feel the light bulbs, one should still be warm from having been turned on and then off, that’s switch 1.

    The one that’s off and cool is switch 3.

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  5. Dan Kolstad says:

    Yep, I’d say turn them all on at once so its guaranteed to be on when you get up there to dust off grandpa’s old clubs!

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  6. Kyle DeYoung says:

    Leave one switch off,
    Turn one switch on for a few minutes then turn it off,
    Turn the last switch on and enter the room.

    Feel the light-
    If the bulb is off and cold then its the first switch (or none go to the light)
    If it is warm but off then it is the second light
    If the bulb is on then it is the third light

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  7. Kris says:

    Bribe one of the kids with a new Cleveland Hat to go into the attic and let you know when the light goes on as you test the switches.

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  8. Mary Jo Kuby says:

    Check the labels on the breaker box for attic

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  9. Benji says:

    Trip one, go outside look through a window. Repeat until you have a winner…

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  10. Aaron says:

    Turn switches 1 + 2 on. Wait 5 minutes. Turn switch 2 off. Go check bulb. If it is ON, then it is Switch 1, if it is WARM then it is Switch 2, if it is cold and off, then it is switch 3.

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  11. Brian says:

    start in the attic and trace the wiring from the bulb to the switch in the basement, then label correctly for future use.

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  12. Wes says:

    Try them all at the same time. get some help to observe.

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  13. Cory says:

    Like most have said before turn switch one on, leave it on for 10 minutes. Turn it off, turn switch two on, go upstairs and observe the bulb. If it is warm it is switch one, if it is on it is switch two, if it is cold it is switch three.

    Alternate answer: Use your one trip upstairs to wire up a buzzer to the bulb. Go back downstairs and flip each switch until you hear the buzzer. This does, however require some background knowledge in circuits and a simple buzzer.

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  14. Craig says:

    Turn the first switch on and leave it for several minutes. The turn the first switch off and turn the second switch on and go check the light bulb. If the light is on, the second switch is the correct one. If the light is off but the bulb is warm, the first switch is the correct one. If the bulb is off and cold, the third switch is the correct one.

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  15. A.J. Bungcag says:

    Turn one on for 5 or 10 minutes, then turn it off and turn another one on. Then go up to the attic – if the light’s on, the switch that’s on controls it. If it’s off, see if the bulb is warm. If so, the one you switched on and off controls it. Otherwise, it’s the final one.

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  16. AJ butler says:

    Unscrew the light swith from the wall and see which one is wired. If all are wired and only one works a test light will show you which one has power.

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  17. KEN L MCDONALD says:

    I agree , try one switch and wait five minutes with each switch. Go test bulb in attic and figure what switch was the one untill light bulb was hot.

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  18. C. Evans says:

    It’s already been said, but hoping for another entry. Turn 1&2 on, wait 5 minutes and turn 2 off. If the light is on, it’s switch 1, if the light is off, but the bulb warm, it’s switch 2. If it’s off and cold, it’s switch 3.

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  19. Chris says:

    Unscrew all three switches and wire them all into one switch. This switch will work for the light bulb.

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  20. Scott says:

    Turn on the first switch, wait 5 minutes. Then turn it off and quickly turn on the secind switch. hustle upstairs. If the light is on, its the second switch. If it is off, then feel the bulb, if it is warm or hot, then it is the first switch. If it is off and cold to the touch then it is the third switch.

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  21. james says:

    Aaron said it best with regards to checking for heat after 1&2 are on.

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  22. Chad says:

    Whoever wired the attic light to a switch in the basement is a moron!!

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  23. Steve Wilkerson says:

    Turn on one switch wait a few minutes and turn on another switch, to to attic and check bulb for warmth or see if light is on

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  24. Chris N. says:

    Once again too late to the party; gotta get up and check these posts earlier in the day to be one of the first to try and answer the teaser.

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  25. Russell Smith says:

    Attic Light: You have 3 light switches in your basement and one of them controls a light in your attic (the other two do nothing). You have to figure out which of the 3 switches controls the attic light, but you are only allowed one trip up to your attic. You can’t see the attic from your basement, and you’re not allowed to use any equipment or people to help you (no multimeters, video cameras, etc). What do you do?

    A: Turn on switch 1 for a few minutes. Turn it off.
    Turn on switch 2 — Go upstairs
    If the bulb is off and hot you know it is switch 1
    If the bulb is on than you know if is switch 2
    If the bulb is off and cold than you know it is switch 3

    Easy

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  26. Aaron says:

    You turn on all 3 switches, go up stairs and if the light still isn’t on. You fire your electrician.

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  27. D.Thomas says:

    Turn switch one on.Go check if not on flip a coin.Fifty fifty chance!

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  28. jorge casanova says:

    take the switch plate cover off.since 2 switches do nothing ,the one with wires on the switch is the one controlling the light.Dont even have to go upstairs..

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  29. Christopher says:

    3! One to hold the bulb and 2 to turn the ladder!

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  30. Rod H says:

    Turn on 2 switches. Go outside and practice chipping for 10 minutes to keep your short game intact. Use your imagination and feel the grip from the grooves on your new CG15. Now that you are immersed in the moment …. oh hang on wasn’t there something about a light. Yeah that’s right, go and turn off one of the switches and then check if the light in the attic is on, warm, or cold. You know the rest. After you come out of the attic go back to your practise.

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  31. Don Hutton says:

    Turn on Switch #1 and wait 5 minutes.
    Turn on Switch #2 and go to the Attic.
    If the light is on it is Switch #2
    If the light is off but warm then it is Switch #1
    If the light is off and not warm then it is Switch #3

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  32. Brian says:

    call an electrician, skip the trip to the attic.

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  33. Beau Cooper says:

    I know it’s already been answered, but hey, at least I’ll get a shot at winning the driver!

    Assuming the light upstairs starts in the off position: Flip switch A on, leave it on for a short while, then flip it off and flip switch B on. Go upstairs: if the light is on, switch B controls it. If it’s off, bring your hand to feel it: if it’s warm, switch A controls it; otherwise, C.

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  34. Pete says:

    Turn on the first switch and wait long enough to get the bulb hot, then turn it off. Next turn on the 2nd switch and go see if the light is on. If the light is on then the 2nd switch controls it. If the light is off but the bulb is hot the first switch controls it. If it’s neither, then the 3rd switch controls it.

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