Mission Possible C
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Re: Mission Possible C
Alright, so our gas expansion task is taking a little over 10 seconds. It varies from 5-12 seconds depending on whether or not we set it up correctly. It consists of a heater heating up gas inside a small chamber. The chamber is connected to a tube which holds water. An electrode at the end senses when water drips out the tube. Is it a problem that this task takes over 10 seconds? Technically it's an electrical sensor sensing the water so would be counted as an electrical timer taking over 10 seconds?
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Re: Mission Possible C
I would encourage competitors to cite General Rule 1 if the ES tries to prevent them from timing the device themselves/ask for the time.Kyanite wrote:Maybe they want to add risk to running a chemical timer, or avoid people from wirelessly starting the next action?ScottMaurer19 wrote:I had the same thoughts. What if my timer was only supposed to run 2 min to allow for the other tasks to complete, but I am unaware that the action has failed (by taking too long) and I lose all my other actions after it?SluffAndRuff wrote:
You're absolutely right, preventing this is important. Thing is, I had a chemical timer running up to near 3 minutes and I wanted to make sure that we wouldn't go over if the next task didn't trigger. I don't really think this is intentionally stalling.
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Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.
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Re: Mission Possible C
That's exactly our first thought, but later we connected that to the water task. The heater is 12 ohm nichrome wire. With 9V battery, it is instant (< 1 second) push the water to a tube to finish the water task.Rezalis wrote:Alright, so our gas expansion task is taking a little over 10 seconds. It varies from 5-12 seconds depending on whether or not we set it up correctly. It consists of a heater heating up gas inside a small chamber. The chamber is connected to a tube which holds water. An electrode at the end senses when water drips out the tube. Is it a problem that this task takes over 10 seconds? Technically it's an electrical sensor sensing the water so would be counted as an electrical timer taking over 10 seconds?
To me, the 10 seconds rule apply here, not because of the sensor, but because of the heater is electrical. If you heat it with a candle or some flame, the 10 seconds rule should not apply.
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Re: Mission Possible C
I'm a little confused why there's concern with action 4.b.iv taking 10+ seconds. I understand there was previous debate about it being used for the timer bonus and the open circuit being an "electrical sensor", but that shouldn't matter here ("electrical sensor" was only introduced for timer bonuses, if I'm not mistaken). It sounds to me like your action is mechanically "powered" by a pressure difference, and provided the open circuit does not drain the battery in any way, I don't see how the action would be "powered by electricity" for 10+ seconds and violate rule 3.i. I fully agree that an electrical heater for 10+ seconds would violate it.jinhusong wrote:That's exactly our first thought, but later we connected that to the water task. The heater is 12 ohm nichrome wire. With 9V battery, it is instant (< 1 second) push the water to a tube to finish the water task.Rezalis wrote:Alright, so our gas expansion task is taking a little over 10 seconds. It varies from 5-12 seconds depending on whether or not we set it up correctly. It consists of a heater heating up gas inside a small chamber. The chamber is connected to a tube which holds water. An electrode at the end senses when water drips out the tube. Is it a problem that this task takes over 10 seconds? Technically it's an electrical sensor sensing the water so would be counted as an electrical timer taking over 10 seconds?
To me, the 10 seconds rule apply here, not because of the sensor, but because of the heater is electrical. If you heat it with a candle or some flame, the 10 seconds rule should not apply.
It's not a bad idea to play it safe, but I would like to understand the concerns with it.
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Re: Mission Possible C
Yes, I believe that is correct.marty3 wrote: ("electrical sensor" was only introduced for timer bonuses, if I'm not mistaken)
This remains an open question. I still remain concerned that any task involving electricity, which 4.b.iv explicitly does, can be found in violation of 3.i. if it takes longer than 10 seconds to complete. Without an FAQ (which is unlikely) this is entirely at the supervisor's discretion as to whether the whole action must be powered by electricity or simply any component. My full explanation for this reasoning is earlier in this thread.marty3 wrote:It sounds to me like your action is mechanically "powered" by a pressure difference, and provided the open circuit does not drain the battery in any way, I don't see how the action would be "powered by electricity" for 10+ seconds and violate rule 3.i.
Agreed.marty3 wrote:I fully agree that an electrical heater for 10+ seconds would violate it.
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Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.
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Tournament Director - Solon High School Science Olympiad Invitational
Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.
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Re: Mission Possible C
Thanks, we have it working now. Our heater wasn't sealed right. Now ours also takes less than one second to complete.marty3 wrote:I'm a little confused why there's concern with action 4.b.iv taking 10+ seconds. I understand there was previous debate about it being used for the timer bonus and the open circuit being an "electrical sensor", but that shouldn't matter here ("electrical sensor" was only introduced for timer bonuses, if I'm not mistaken). It sounds to me like your action is mechanically "powered" by a pressure difference, and provided the open circuit does not drain the battery in any way, I don't see how the action would be "powered by electricity" for 10+ seconds and violate rule 3.i. I fully agree that an electrical heater for 10+ seconds would violate it.jinhusong wrote:That's exactly our first thought, but later we connected that to the water task. The heater is 12 ohm nichrome wire. With 9V battery, it is instant (< 1 second) push the water to a tube to finish the water task.Rezalis wrote:Alright, so our gas expansion task is taking a little over 10 seconds. It varies from 5-12 seconds depending on whether or not we set it up correctly. It consists of a heater heating up gas inside a small chamber. The chamber is connected to a tube which holds water. An electrode at the end senses when water drips out the tube. Is it a problem that this task takes over 10 seconds? Technically it's an electrical sensor sensing the water so would be counted as an electrical timer taking over 10 seconds?
To me, the 10 seconds rule apply here, not because of the sensor, but because of the heater is electrical. If you heat it with a candle or some flame, the 10 seconds rule should not apply.
It's not a bad idea to play it safe, but I would like to understand the concerns with it.
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Re: Mission Possible C
Mira Loma's Mission was apparently in the range of 5 cm x 10 cm x 20 cm (all tasks and chemical timer).
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Re: Mission Possible C
That's simply insane...Unome wrote:Mira Loma's Mission was apparently in the range of 5 cm x 10 cm x 20 cm (all tasks and chemical timer).
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Re: Mission Possible C
~5 seconds for all tasks and 2:53 chemical timer (if it worked as expected - I do not know how they actually did)PM2017 wrote:That's simply insane...Unome wrote:Mira Loma's Mission was apparently in the range of 5 cm x 10 cm x 20 cm (all tasks and chemical timer).
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Re: Mission Possible C
It appeared to have worked well, though they left their mission in the room to argue about points I assume.windu34 wrote:~5 seconds for all tasks and 2:53 chemical timer (if it worked as expected - I do not know how they actually did)PM2017 wrote:That's simply insane...Unome wrote:Mira Loma's Mission was apparently in the range of 5 cm x 10 cm x 20 cm (all tasks and chemical timer).
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