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by E Edgar
April 5th, 2011, 6:47 pm
Forum: 2011 Invitationals, Regionals, and States
Topic: Indiana 2011
Replies: 62
Views: 12062

Re: Indiana 2011

I'm fairly certain the answer to that question is "star sponge" or something similar.
by E Edgar
April 2nd, 2011, 7:21 pm
Forum: 2011 Invitationals, Regionals, and States
Topic: Indiana 2011
Replies: 62
Views: 12062

Re: Indiana 2011

Wow! What an exciting competition. Great job all teams!

Anyway, I think special congratulations go to Northridge for winning the state title in the C division!

Also, congratulations to TJ for winning the B division!
by E Edgar
October 31st, 2010, 11:58 am
Forum: 2011 Lab Events
Topic: Wind Power C
Replies: 323
Views: 44143

Re: Wind Power C

Well, if your blades are just free-spinning, then you want really thin blades that won't create a lot of drag. If you hook up a load (resistor in this case), then I would think you would need blades that catch more air. To accomplish this, an increase in blade surface area might help. Of course, the...
by E Edgar
October 31st, 2010, 9:14 am
Forum: 2011 Lab Events
Topic: Wind Power C
Replies: 323
Views: 44143

Re: Wind Power C

In regards to construction, last year I used basswood instead of balsa for extra strength. This year, since I assume the assemblies will have a quite a bit more surface area, I would think that you might even need something sturdier than basswood. Also, you do not need masses of technology to do wel...
by E Edgar
August 14th, 2010, 1:48 pm
Forum: 2010 Study Events
Topic: Astronomy C
Replies: 180
Views: 32835

Re: Astronomy C

I know this has been said before but does anyone know when and/or where the 2010 national astronomy test will be posted?
by E Edgar
June 27th, 2010, 3:35 pm
Forum: General Chat
Topic: 2010 FIFA World Cup
Replies: 296
Views: 12068

Re: 2010 FIFA World Cup

England had the majority of the possession for most of the match so although they were probably outplayed, it wasn't too lopsided .

I think that the unfair call unsettled the players and caused them to play poorly in the 2nd half.
by E Edgar
May 30th, 2010, 11:07 am
Forum: General Chat
Topic: Staircase of Wasted Time (See how much time you waste here!)
Replies: 99
Views: 9275

Re: Staircase of Wasted Time (See how much time you waste he

Wow! I didn't make the list despite the fact that I spend days at a time on this site.
I feel slightly better about myself and a lot worse about everyone else.
by E Edgar
May 27th, 2010, 2:08 pm
Forum: 2010 Lab Events
Topic: Technical Problem Solving C
Replies: 35
Views: 9886

Re: Technical Problem Solving C

Station 1: You are given 3 pendulums of varying lengths and a stopwatch. Construct a graph using the paper provided and use it to estimate the period of a pendulum of length 10cm/100cm. Station 2: Given this box where the base is star-shaped, find the volume. Station 3: Remove some water from a bott...
by E Edgar
May 27th, 2010, 6:37 am
Forum: 2010 Lab Events
Topic: Physics Lab B/C
Replies: 424
Views: 46631

Re: Physics Lab B/C

But energy is just power multiplied by time. The way the problem was worded, one would have to assume that the amount of time that the wind turbine was running would be constant. Therefore, if the power is 8 times as much, so is the energy.
by E Edgar
May 24th, 2010, 9:53 am
Forum: 2010 Lab Events
Topic: Physics Lab B/C
Replies: 424
Views: 46631

Re: Physics Lab B/C

Other other one we were very unsure about was the question "What type of energy is the event supervisor measuring when he takes a voltage reading?" My partner decided to go with potential energy, since the "voltage" part of it does mean that it's a measurement of electric potential, but I wonder if...

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