Search found 840 matches
- May 5th, 2014, 6:46 pm
- Forum: 2014 Invitationals, Regionals, and States
- Topic: Pennsylvania 2014
- Replies: 349
- Views: 88960
Re: Pennsylvania 2014
I would like to hope there was a miscalculation. But what has happened is pretty big. From what I hear, many of the schools who were in the Top 5/6 at states for the C Division are very disappointed in what is going on. Many coaches have been trying to contact the State admins trying to get clarifi...
- February 25th, 2014, 3:48 pm
- Forum: 2014 Lab Events
- Topic: Technical Problem Solving C
- Replies: 29
- Views: 18825
Re: Technical Problem Solving C
Exactly! I was looking for something about countercurrent heat exchangers, or really anything besides concurrent flow.
- February 23rd, 2014, 11:34 am
- Forum: 2014 Lab Events
- Topic: Technical Problem Solving C
- Replies: 29
- Views: 18825
Re: Technical Problem Solving C
Here's an interesting question that zero out of 20 teams got completely correct at CWRU yesterday: For a general heat exchanger, consider the inlet temperature of chamber A to be T1A, the outlet temperature of chamber A to be T2A, the inlet temperature of chamber B to be T1B, and the outlet temperat...
- May 20th, 2013, 10:02 am
- Forum: 2013 Lab Events
- Topic: Shock Value B/Circuit Lab C
- Replies: 214
- Views: 61471
Re: Shock Value B/Circuit Lab C
Hey, I showed up at 2:59. So really I was early!
- May 19th, 2013, 5:52 pm
- Forum: 2013 Lab Events
- Topic: Keep the Heat B/Thermodynamics C
- Replies: 494
- Views: 110859
Re: Keep the Heat B/Thermodynamics C
You're right, it is similar to a half-life. This is covered by Newton's law of cooling, which states that the rate of heat loss of a body is proportional to the difference in temperatures between the body and its surroundings, according to wikipedia. So if the rate of change in temperature is propor...
- May 22nd, 2012, 4:59 pm
- Forum: 2012 Nationals
- Topic: 2012 National Tournament: University of Central Florida
- Replies: 313
- Views: 73703
Re: 2012 National Tournament: University of Central Florida
For everyone who was as amazed (to say the least) at the opening cerimonies, here are the three videos:
http://www.youtube.com/watch?v=DZGINaRUEkU
http://www.youtube.com/watch?v=akek6cFRZfY
http://www.youtube.com/watch?v=7NNhj9CioTE
http://www.youtube.com/watch?v=DZGINaRUEkU
http://www.youtube.com/watch?v=akek6cFRZfY
http://www.youtube.com/watch?v=7NNhj9CioTE
- March 2nd, 2012, 7:13 pm
- Forum: 2012 Build Events
- Topic: Robot Arm C
- Replies: 531
- Views: 110811
Re: Robot Arm C
Sounds like an interesting discussion, and it reminded me of something. When I was in 6th grade and Borders was still around, I bought a book called "Junkbots, Bugbots, and Bots on Wheels." I still recommend that book to anyone who wants to learn about building robots as a hobby. One of th...
- March 2nd, 2012, 2:41 am
- Forum: 2012 Build Events
- Topic: Robot Arm C
- Replies: 531
- Views: 110811
Re: Robot Arm C
That reminds me. I used to recommend lithium polymer batteries, because they're getting cheaper and can supply enough current for almost anything. I don't recommend them anymore, if you're the kinda person who makes stupid mistakes like me. Because sometimes you forget to balance them. And then some...
- January 30th, 2012, 4:59 pm
- Forum: 2012 Build Events
- Topic: Robot Arm C
- Replies: 531
- Views: 110811
Re: Robot Arm C
Oh, that's pretty cool! But still, I see you point to speed as the advantage. My teammates haven't had a chance to practice with a real field compliant with the rules, but my my judgement, it shouldn't be a problem to make 3 minutes. I guess that depends on your controller, and practice.
- January 30th, 2012, 4:26 pm
- Forum: 2012 Build Events
- Topic: Robot Arm C
- Replies: 531
- Views: 110811
Re: Robot Arm C
I think the better question to ask here is WHY make it autonomous, not why not. A team that gets maximum score with an autonomous 4-motor robot will not beat one that gets maximum score with 4 motors that's manually controlled. Time is not scored. It will come down to the quality of technical docume...