Keep the Heat B/Thermodynamics C

[benk]

Can some one tell me if Keep the Heat conflicts with Meteorology WIDI or Road Scholar because our rule book is missing the last page with the event schedule

Can some one help me with that

[foreverphysics]

http://www.wright.edu/scienceolympiad/r ... e-2013.pdf

[The Architect]

Can any part of the device extend below the lip of the beaker inside of the beaker?

[siciscio]

Oh I tried that last year, it was fine at Nats. So it should be ok. I do t see any rules that specifically say mo.

[foreverphysics]

Can any part of the device extend below the lip of the beaker inside of the beaker?

"below the lip of the beaker inside the beaker"?
If you're asking if part of the device can surround the beaker internally below the lip of the beaker...yes.

[Jakehall]

I am quite glad this is a returning event, but this year I've a new partner and we have been discussing different insulators so I was looking for some help.

From what we've read on hear Air seems to be the best insulator, assuming you can block off convention currents, and we've come to an issue--For the hole to allow the probe in, what is the best way to build that to prevent the currents? For example, last year we made it flush with the beaker, because I had figured if I did it'd minimize the area the air could escape, and thus would provide less currents, but he says it'll just give the air one hole to flow out of to the open air where we don't have an insulation... So what do you guys think? Flush or above the beaker? Thank ya.

[Beastybob12345]

I just started Keep the Heat, so i barely know anything about thermodynamics. Any suggestions for websites I should go to

[Beastybob12345]

I failed the thermodynamics test at the last invitational.

[135scioly]

For example, last year we made it flush with the beaker, because I had figured if I did it'd minimize the area the air could escape, and thus would provide less currents, but he says it'll just give the air one hole to flow out of to the open air where we don't have an insulation... So what do you guys think? Flush or above the beaker? Thank ya.

I'm not sure, but I would agree with your partner, because hot air of course naturally travels up, and if it is flush with the beaker, then it will go out, but if there is a bit of space above your beaker, and you put something to try and trap the air inside, then less air will escape from your device. Hope that helps!

[Cheesy Pie]

My partner built this device that was pretty much a cardboard holder in a wooden box stuffed with cotton balls. There was some plastic thing that trapped humidity, thus preventing heat from escaping. The device gets 40 minute heat retention scores of at least 12.