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No problem, we all get pretty intense about this stuff

He said:

Regarding the match I would suggest the actions are Mechanical to chemical to thermal to mechanical providing there is a time interval for the burning match to heat up the [bimetallic] strip.

But he also said:

For the light bulb I would agree with the later of Electrical to EMS to electrical

These two views seem to me to be inconsistent, hence my stance to avoid even the "safe" interpretation for these kinds of transfers.

Hi!!!
I have 2 questions:
1) I judged Mission at an invitational and there was dispute in the interpretation of the start task. Does the event supervisor provide the paper clips, marbles, and golf tees for the start task or are teams to bring their own?

2) Would making a salt solution (for example) and using a conductivity tester to light the light be considered electrical energy or chemical energy? We would like to have solid salt dissolve in water (which is a grey area chemical change).

Thanks

1) there's an FAQ on soinc about it, the students are supposed to provide the materials

2) I don't see it as a gray area change to be honest, it's dissociation, which is a chemical reaction. It's just reversible (like an equilibrium reaction).

I would think of it as chemical -> electrical -> ems, but we've had plenty of discussion on transfers and I'm sure someone else has a different opinion

That's how I'd score it, too.

Has anyone had any luck with chemiluminescent reactions (i.e. glowstick) to a photocell?

scramblingman wrote:Has anyone had any luck with chemiluminescent reactions (i.e. glowstick) to a photocell?

Mine haven't. The photocells weren't picking up enough of the light to do much

Just curious but for this event and for other building events,
at regionals if all 3 teams from one school have exactly the same structure but they each independently built them (just shared ideas), is that considered as cheating?
Since they're all the same, I would assume one person had the idea and the other 4 members from the other team just copied off him/her.

sjwon3789 wrote:Just curious but for this event and for other building events,
at regionals if all 3 teams from one school have exactly the same structure but they each independently built them (just shared ideas), is that considered as cheating?
Since they're all the same, I would assume one person had the idea and the other 4 members from the other team just copied off him/her.

Check out the official SO building policy: http://www.soinc.org/building_tools_policy

iwonder wrote:1) there's an FAQ on soinc about it, the students are supposed to provide the materials

2) I don't see it as a gray area change to be honest, it's dissociation, which is a chemical reaction. It's just reversible (like an equilibrium reaction).

I would think of it as chemical -> electrical -> ems, but we've had plenty of discussion on transfers and I'm sure someone else has a different opinion

Although I have heard some call adding salt to water a chemical reaction, just about every chemist will call this a physical change. I wouldn't expect your supervisor to score it as chem->electric. You're safer not to use that as a transfer

Hey so for scoring wise, when you have
Mechanical to Chemical that is 30 points
if you have another Mechanical to Chemical is that 0 points or 20 points?