Search found 11 matches

by 404ic
March 26th, 2019, 11:47 pm
Forum: 2019 Study Events
Topic: Disease Detectives B/C
Replies: 203
Views: 29620

Re: Disease Detectives B/C

I saw in a test question that epidemiologists are starting to shift from the epidemiological triad and that there is a new equivalent to this triad. I couldn't find anything on the internet relating to this; does anyone know what this question is referring to?
by 404ic
March 26th, 2019, 5:20 pm
Forum: 2019 Study Events
Topic: Disease Detectives B/C
Replies: 203
Views: 29620

Re: Disease Detectives B/C

Does anyone know the difference between efficiency, efficacy, and effectiveness in the context of DD?
by 404ic
March 15th, 2019, 4:21 pm
Forum: 2019 Study Events
Topic: Disease Detectives B/C
Replies: 203
Views: 29620

Re: Disease Detectives B/C

Hi everyone,

I was assigned DD for state after regionals and I've never done the event before. I see an abundance of resources in this forum and it's slightly overwhelming. Does anyone have any tips on where to begin (besides the wiki)?

Thanks,
me
by 404ic
December 1st, 2018, 4:36 pm
Forum: Mission Possible C
Topic: Effervescence Task
Replies: 22
Views: 4094

Re: Effervescence Task

Hi everyone,

Is it possible to combine this task with the endothermic task? If you interpret it as the heartburn pill's reaction with water triggering an endothermic reaction, could it count as two separate scorable actions?
by 404ic
November 20th, 2018, 2:52 pm
Forum: 2019 Study Events
Topic: Fossils B/C
Replies: 312
Views: 35309

Re: Fossils B/C

Hi everyone, What fossils exactly do we have to be able to identify? On the official list, the fossils are ranked 1-102. For example, the first one is 1) Order Fusulinida. Right above this is Phylum Foraminifera (Forams) , which is not numbered. Additionally, in Phylum Echinodermata , Class Blastoid...
by 404ic
March 7th, 2018, 7:41 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 602
Views: 80302

Re: Mousetrap Vehicle C

404ic, How much does your vehicle weigh? If it weighs enough, you may have the option to simply wind how ever many turns you need, then secure the kill bar in place but leave slack in the drive string. By doing this when you release the trigger mechanism the drive arm will swing upwards to your sta...
by 404ic
March 6th, 2018, 7:51 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 602
Views: 80302

Re: Mousetrap Vehicle C

Hi guys! Quick question (okay, maybe not so quick): how does your starting mechanism work? My mousetrap vehicle uses one mousetrap, and I use an axle hook to switch directions while winding. Since the length traveled is not known until competition, I simply turn the axle string a certain amount of ...
by 404ic
March 6th, 2018, 7:07 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 602
Views: 80302

Re: Mousetrap Vehicle C

Hi guys! Quick question (okay, maybe not so quick): how does your starting mechanism work? My mousetrap vehicle uses one mousetrap, and I use an axle hook to switch directions while winding. Since the length traveled is not known until competition, I simply turn the axle string a certain amount of t...
by 404ic
March 2nd, 2018, 9:04 pm
Forum: 2018 Lab Events
Topic: Hovercraft B/C
Replies: 627
Views: 71719

Re: Hovercraft B/C

S-O Battery policy says: • insulate the battery terminals and attached wires when not connected; • do not use bare wire at any time in the construction of your device; • make sure that all wiring connections are properly insulated https://www.soinc.org/sites/default/files/uploaded_files/Science_Oly...
by 404ic
February 27th, 2018, 9:20 pm
Forum: 2018 Lab Events
Topic: Hovercraft B/C
Replies: 627
Views: 71719

Re: Hovercraft B/C

Hi y'all, Am I allowed to use alligator clips to wire my hovercraft? I remember some team getting chewed out last year for doing that... S-O Battery policy says: • insulate the battery terminals and attached wires when not connected; • do not use bare wire at any time in the construction of your de...

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