Search found 12 matches

by actionpotential
March 24th, 2015, 10:01 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

Woahh that's pretty cool theoriginalweevil

How did your "swinging arm" device work? We've been thinking about how to somehow use that design, but we weren't able to think of anything feasible...
by actionpotential
March 1st, 2015, 3:36 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

But goodcheer I see that you're putting the 1.5 inch metal pipe inside a PVC pipe, so that may minimize temperature sensitivity. Definitely test your device if the cold will matter. You could just bring your device outside for a few minutes, bring it back inside, and test it again.
by actionpotential
March 1st, 2015, 3:33 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

Yikes yikes goodcheer! Just curious, where do you test your device, and did you ever have to transport your device and test it somewhere else? Inside the pvc, we inserted a short piece of 1.5 inch metal pipe, duct taped. A ping pong ball fits inside the metal pipe and plenty of air is produced by th...
by actionpotential
January 13th, 2015, 6:18 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

Hey TheBlowMaster! If you were referring to my earlier post, I just wanted to make clear that we were tiered because the string was outside of the 75 x 75 x 100 cube and it fell with the mass. Using string alone will not penalize you, just make sure the triggering mechanism doesn't add energy to the...
by actionpotential
December 13th, 2014, 7:06 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

Hey a quick heads up from our recent invitational: Our device involved dropping a mass onto a soda bottle. The mass was tied up with string and one person physically held the string one meter away. When we launched, the person would just let go of the string, causing the mass to fall down. This was ...
by actionpotential
November 21st, 2014, 9:38 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

So to clarify, is this the idea? 1. Pressurize an air chamber 2. The mass falls, which turns the lever and releases the pressurized air But for #1 some modifications would be needed to adhere with the rule "devices must begin at ambient air pressure." The rules state "the launching fo...
by actionpotential
November 21st, 2014, 3:06 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

So, you have a weight which applies force on a lever and this lever then applies a force used to pressurize a pump chamber which launches a ball. As long as the lever isn't providing any additional potential energy (read: "falling") then the air pressure that shoots the ball does come fro...
by actionpotential
November 10th, 2014, 2:21 pm
Forum: 2015 Lab Events
Topic: Protein Modeling C
Replies: 176
Views: 49062

Re: Protein Modeling C

Yeah that's a good question. Does anyone have suggestions for finding out which amino acids/sidechains are important to the protein's structure? I have googled all about endonuclease and specifically 2fok but cannot seem to locate specific amino acids that were important.

Thanks
by actionpotential
October 25th, 2014, 1:21 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

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 autom...
by actionpotential
October 23rd, 2014, 8:06 pm
Forum: 2015 Build Events
Topic: Air Trajectory B/C
Replies: 573
Views: 123042

Re: Air Trajectory B/C

Really compressing soda bottles works? I saw a couple images of that, but I didn't think it would shoot reliably. I imagined dropping a mass wouldn't compress the bottle the same way every time, so the shots wouldn't be reliable. Also, after your shot, if the pipe that's connected to your bottle is ...

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