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by andrewwski
June 5th, 2019, 1:45 pm
Forum: Nationals
Topic: Nationals Event Discussion
Replies: 124
Views: 12743

Re: Nationals Event Discussion

So someone came into my sounds testing room with me and basically videoed/photographed (I think videoed, but not sure) my entire build run. Is this normal? I’ve never encountered something like this before. Normally I wouldn’t raise any eyebrows, except this event is coming back next year, and ther...
by andrewwski
December 6th, 2018, 10:36 am
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 779
Views: 45484

Re: Wright Stuff C

I saw a few teams use some sort of plastic mylar type of tissue with green lettering on it. Anyone know the name of it? I'm not quite sure if my answer is correct, but I think it might've been the mylar provided in the ward's kit. Last year, my partner and I ordered a ward's kit, and the mylar cove...
by andrewwski
October 7th, 2018, 10:37 pm
Forum: General Chat
Topic: Test writing with LaTeX
Replies: 5
Views: 635

Re: Test writing with LaTeX

Images are easier in LaTeX. Way less fighting to put them where you want them. For example: \begin{figure}[!h] \centering \includegraphics[width=6 cm]{Figure1.jpg} \end{figure} The "!h" forces the figure to appear exactly where you want it to. The exam class makes the formatting pretty eas...
by andrewwski
February 15th, 2018, 11:08 am
Forum: 2018 Study Events
Topic: Astronomy C
Replies: 202
Views: 23059

Re: Astronomy C

Also, does anyone know a formula I could use to solve this? The ratio of orbital velocities for a star to its planet is 0.0083. The system has an inclination derived of 75 degrees, and the mass of the star is 0.66 solar masses. What is the mass of the planet in Jupiter masses? A bit late on this (a...
by andrewwski
April 1st, 2017, 6:07 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 105911

Re: Hovercraft B/C

I agree. This 5 Ohm beast -- which looks like it spent a decade in a Kazakhstan warehouse -- worked well for us: https://www.amazon.com/gp/product/B00K82TH7W/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 What are the Coulombs and mAh of your battery? I think we tried that same potentiometer, but ...
by andrewwski
March 28th, 2017, 6:03 pm
Forum: Electric Vehicle C
Topic: Electric Vehicle C
Replies: 179
Views: 21341

Re: Electric Vehicle C

Has anyone tried using a PID loop to correct for any error in their Arduino distance programming? If so, has it helped significantly decrease your distance score? I wrote some PID code but didn't implement it because there's not much of a point when you can get centimeter accuracy using an encoder....
by andrewwski
March 22nd, 2017, 8:58 am
Forum: 2017 Lab Events
Topic: Wind Power B/C
Replies: 338
Views: 33137

Re: Wind Power B/C

My team and I are having a very hard time understanding how to solve for calculating power loss along a line. I think the terms / equations are similar to Ohms Law but not quite the same and that is mixing us up. Here is an example question for an older test: A power plant in Chicago is generating ...
by andrewwski
March 17th, 2017, 12:12 pm
Forum: Electric Vehicle C
Topic: Question about rules regarding length and width design of the electric vehicle?
Replies: 9
Views: 1774

Re: Question about rules regarding length and width design of the electric vehicle?

Wouldn't say it's a loophole. I've seen a lot of EV/Scrambler/Mousetrap/Gravity Vehicle designs over the years that have parts of the vehicle that extend outside of the wheelbase. If the intent of the rules was to restrict the vehicles to be smaller than that size, it would say so explicitly (probab...
by andrewwski
March 15th, 2017, 11:09 am
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 105911

Re: Hovercraft B/C

Could be a few different things going on. It looks like those motors are fairly small, and they aren't typically run with that much voltage. It's possible that if the motor is running under no load (freely), it works fine, but will encounter issues if run under load. When you add a load to the motor...
by andrewwski
March 3rd, 2017, 12:40 pm
Forum: 2017 Lab Events
Topic: Wind Power B/C
Replies: 338
Views: 33137

Re: Wind Power B/C

Btw my binder is not trash, but it is bad compared to Community MS (won 4th in nats last year and same people doing this year). I have barely any chance of beating them, but I still have some hope. We compete in NJ. I want to beat Community really badly, and we had a chance until yesterday when our...
by andrewwski
February 24th, 2017, 2:31 pm
Forum: 2017 Invitationals, Regionals, and States
Topic: New York 2017
Replies: 176
Views: 26976

Re: New York 2017

One thing - apparently Lake Erie-Niagara isn't in B, it's covered by Midwestern? Lake Erie-Niagara has it's own B division regional - this year it's March 4 at Waterfront Elementary School in Buffalo. Ok. How recent is this? Several older threads have no mention of it. At least since 2003. Probably...
by andrewwski
February 23rd, 2017, 9:10 pm
Forum: 2017 Invitationals, Regionals, and States
Topic: New York 2017
Replies: 176
Views: 26976

Re: New York 2017

F-M is in Mid-State (see my guesstimated region boundaries map ) hey can someone go and thumbnail that map onto the NY wiki page for me? (I have an essay to write) This map is the bomb.edu. I actually like this a lot better than the dot map we have on the PA , maybe if I find free time (lol) I'll g...
by andrewwski
February 9th, 2017, 6:56 pm
Forum: 2017 Lab Events
Topic: Optics B/C
Replies: 190
Views: 27057

Re: Optics B/C

Most craft stores (Michael's, JoAnn) have mirrors that are the correct size. Something like a 5 pack for less than $5.
by andrewwski
February 6th, 2017, 10:14 pm
Forum: 2017 Lab Events
Topic: Hovercraft B/C
Replies: 906
Views: 105911

Re: Hovercraft B/C

Does anyone know if a rotary dimmer would work to vary the speed of the push fan? We will be using two 7.2v NiCd RC racing batteries, one for the lift fan and one for the push fan. Push fan - http://www.digikey.com/product-detail/en/mechatronics-fan-group/MD1238X12B-FSR/1570-1122-ND/5209819 Rotary ...
by andrewwski
February 5th, 2017, 5:15 pm
Forum: 2017 Invitationals, Regionals, and States
Topic: New York 2017
Replies: 176
Views: 26976

Re: New York 2017

Clarence and Will North did not finish top 5. The results were: 1. Williamsville East A 2. St. Joe's A 3. Williamsville East B 4. St. Joe's B 5. Lancaster 6. Williamsville East C 7. Nichols A 8. Williamsville North A 9. Canisius A etc... Since each school can only field one team at states, the top ...

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