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by cifutielu
December 26th, 2014, 6:10 pm
Forum: 2015 Study Events
Topic: Astronomy C
Replies: 147
Views: 30612

Re: Astronomy C

For part e of that question, it asks us to use the phase diagram for water along with the temperature to determine if the planet is habitable. How can I use the phase diagram for water to help determine the planet's habitability? I'm not exactly sure how I can use the diagram to my advantage.
by cifutielu
December 26th, 2014, 4:16 pm
Forum: 2015 Study Events
Topic: Astronomy C
Replies: 147
Views: 30612

Re: Astronomy C

How do you solve for the star's effective temperature? Image C1 shows the blackbody spectrum of Star E, which is a main-sequence star with a parallax of 0.1” and radius of 0.480 Solar Radii. Planet F orbits Star E, has the same mass and radius as Earth, and lies at a distance of 0.176 AU from Star ...
by cifutielu
December 26th, 2014, 12:37 pm
Forum: 2015 Study Events
Topic: Astronomy C
Replies: 147
Views: 30612

Re: Astronomy C

How do you solve for the star's effective temperature? Image C1 shows the blackbody spectrum of Star E, which is a main-sequence star with a parallax of 0.1” and radius of 0.480 Solar Radii. Planet F orbits Star E, has the same mass and radius as Earth, and lies at a distance of 0.176 AU from Star E...
by cifutielu
December 12th, 2014, 11:53 am
Forum: 2015 Invitationals, Regionals, and States
Topic: Does anyone have tests from any of the invites so far?
Replies: 9
Views: 2067

Does anyone have tests from any of the invites so far?

My team hasn't gone to any yet and we're looking for some preparation.
by cifutielu
December 12th, 2014, 11:52 am
Forum: 2015 Invitationals, Regionals, and States
Topic: Illinois 2015
Replies: 76
Views: 13786

Re: Illinois 2015

Does anyone have the tests from Palatine? My team couldn't make it :(
by cifutielu
October 28th, 2014, 5:09 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 116863

Re: Air Trajectory B/C

retired1 wrote:There is nothing in the rules to prohibit it, so it would be allowed unless the contest put out a modified rule prior to the event. It is really no different than using additional bottles after each shot.
Thanks!
by cifutielu
October 28th, 2014, 4:58 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 116863

Re: Air Trajectory B/C

retired1 wrote:Yes, it will make a big difference. You simply blow in the end of the tube and the bottle will go back to near normal size.

What are you using for a tube? any modifications to it??
Would a team be allowed to blow into the end of the tube during the competition/after a launch?
by cifutielu
October 25th, 2014, 2:58 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 116863

Re: Air Trajectory B/C

Yeah we would need to uncrush the bottle somehow, like blowing into it as you suggested earlier. The point is using soda bottles would be compliant with the rules. (Device must return to ambient air pressure automatically). If the soda bottle is connected to the outside, the air pressure would auto...
by cifutielu
October 24th, 2014, 11:41 am
Forum: Wright Stuff C
Topic: What are your guys times right now?
Replies: 62
Views: 13470

Re: What are your guys times right now?

retired1 wrote:Depending on ceiling height, I doubt if that will medal in your state. There probably will be many over 2 min with a few over 3 and in a high venue 4 is not out of the range of possibility.
Yeah I know that... but invites aren't until January and we still have a lot of time to improve.
by cifutielu
October 23rd, 2014, 7:48 pm
Forum: Wright Stuff C
Topic: What are your guys times right now?
Replies: 62
Views: 13470

What are your guys times right now?

Our plane can go for a minute and a half

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