Search found 15 matches

by ironchef48
November 21st, 2011, 1:24 pm
Forum: 2012 Lab Events
Topic: Protein Modeling C
Replies: 405
Views: 67409

Re: Protein Modeling C

Where do you find information about the "protein Story" we are supposed to illustrate? I've read the article about Caspases and found a few unique structures by laying around with jmol, but i feel like I'm missing something because I can't correlate these structures to anything. (For instance, the m...
by ironchef48
March 6th, 2011, 4:47 am
Forum: 2011 Lab Events
Topic: Disease Detectives B/C
Replies: 276
Views: 39279

Re: Disease Detectives B/C

Also, though, I get 2.1 for the risk from goulash - 20/21 divided by the baseline, which is 45/99 if I am reading your table correctly. Flavorflav- can you explain your method of calculating RR in a situation like this- or at least what do you use as your baseline? You mentioned this method might b...
by ironchef48
February 26th, 2011, 9:18 am
Forum: Helicopters C
Topic: Rotors
Replies: 280
Views: 40544

Re: Rotors

Do you necessarily need spars on your rotors? if so do they need to be curved to make the wing aerodynamic?
by ironchef48
January 30th, 2011, 6:15 am
Forum: 2011 Study Events
Topic: Ecology B/C
Replies: 314
Views: 49405

Re: Ecology B/C

For a Population equation is it appropriate (or accurate) to use Pert (P=e^rt, where p is population, r is rate and t is time, e is e)?
by ironchef48
January 30th, 2011, 5:58 am
Forum: Helicopters C
Topic: Building materials (excluding covering)
Replies: 51
Views: 12794

Re: Building materials (excluding covering)

I got a Triton T2 scale at American Science and Surplus- it was only about $30- It works great and measures accuratly to .1gand upo to 300g. At an invitational they were only using a scale accurate to 1g- so this was a great way to know I was at the right mass.
by ironchef48
January 30th, 2011, 5:53 am
Forum: Helicopters C
Topic: Duration
Replies: 305
Views: 33692

Re: Duration

At an Invitational yesterday the first place team recorded a flight of one minute and 45 seconds, but I got fourth with 16 seconds. So you can see the spread of times... most helicopters only had flights of a few seconds. How is yours doing? What can you do to improve time?
by ironchef48
January 18th, 2011, 3:10 pm
Forum: 2011 Lab Events
Topic: Microbe Mission B/C
Replies: 323
Views: 51002

Re: Microbe Mission B/C

My question: Does anyone have any tips for identifying microbes and/or what type of microscope was used from pictures? What I've done is create flashcards of a bunch of each of the different types of microbes citing what it is and what microscope was used. Look for similarities between those take w...
by ironchef48
January 17th, 2011, 8:43 am
Forum: Helicopters C
Topic: Rotors
Replies: 280
Views: 40544

Re: Rotors

I've been using a variety of hangars from the piano wire mentioned on this forum to one i made out of plastic wire casing. In the first case I had a small round bead to keep the bottom of the rotor from rubbing the top of the bearing. The second had no bead, but still the same problem. I've added so...
by ironchef48
January 17th, 2011, 7:09 am
Forum: Helicopters C
Topic: Rotors
Replies: 280
Views: 40544

Re: Rotors

I'm having trouble attaching my rotors- every time I attach the motor to the hook, there is so much tension between the bottom of the rotor and the prop hanger that the rotor spins very slowly even with a lubricant between the two or breaks all together. Any suggestions on how to fix?
by ironchef48
December 21st, 2010, 5:15 am
Forum: Helicopters C
Topic: Building materials (excluding covering)
Replies: 51
Views: 12794

Re: Building materials (excluding covering)

What exactly does a thrust bearing do? Does it function with the same purpose as a prop hanger?

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