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Re: Fermi Questions C

Posted: December 3rd, 2017, 6:04 am
by NeilMehta
Unome wrote:
PM2017 wrote:Is there a limit to the amount of scrap paper given to the teams?
(I don't know why, but I remember thinking we only had one piece)
The only limit is that imposed by the event supervisor. Really, the only thing that I can think of which would require significant hand calculations would be logarithms and other math problems.
Even with something like that, unless you have pretty big handwriting, you wouldn't ever really need more than a quarter of a page or so

Re: Fermi Questions C

Posted: December 11th, 2017, 7:00 pm
by Tesel
sluelway1973 wrote:Does Anyone have a Key for the 2006 National test?
The nice thing about Fermi is it's usually possible to do research and independently check the steps for each problem (assuming you know how to relate everything that's being asked). It's going to be most helpful if you can do that process by yourself, since then you get a better feel for what you need to study better. I'll also take a look at the test for my team's practices, and if we work through it I'll post the results.

Re: Fermi Questions C

Posted: January 7th, 2018, 9:55 am
by scioly2012
Hello! I just got put into Fermi Questions, but I've never even done an inquiry event before. I'm really lost, can anyone tell me what types of units I should know? Thanks :D

Re: Fermi Questions C

Posted: January 7th, 2018, 5:45 pm
by whythelongface
scioly2012 wrote:Hello! I just got put into Fermi Questions, but I've never even done an inquiry event before. I'm really lost, can anyone tell me what types of units I should know? Thanks :D
I know this isn't the answer you want, but ideally you want to know as many units as possible. Start with familiarizing yourself with metric and imperial units, and what their prefixes mean. Make sure you can convert between the prefixes well (example: a meter is 1E9 nanometers, a megawatt is 1E6 watts, etc). Then, start getting an idea of how to approximate conversions between imperial and metric (a foot is about 30 centimeters, a meter is roughly a yard, a mile is about 1.6 kilometers, stuff like that). Since Fermi is about approximation, you don't have to have be precise - quick approximations are key here.

Once you have that down pat, start learning the more obscure ones. The obvious ones would be stuff like Angstroms, Light-years, Astronomical Units, Parsecs, Cubits, Grains, Troy ounces, Hogsheads, Svedbergs, etc. Wikipedia has a great list of units of length and time, if I can remember, and you should check it out.

Fermi is one wild event. Have fun!

Re: Fermi Questions C

Posted: January 7th, 2018, 5:50 pm
by scioly2012
whythelongface wrote:
scioly2012 wrote:Hello! I just got put into Fermi Questions, but I've never even done an inquiry event before. I'm really lost, can anyone tell me what types of units I should know? Thanks :D
I know this isn't the answer you want, but ideally you want to know as many units as possible. Start with familiarizing yourself with metric and imperial units, and what their prefixes mean. Make sure you can convert between the prefixes well (example: a meter is 1E9 nanometers, a megawatt is 1E6 watts, etc). Then, start getting an idea of how to approximate conversions between imperial and metric (a foot is about 30 centimeters, a meter is roughly a yard, a mile is about 1.6 kilometers, stuff like that). Since Fermi is about approximation, you don't have to have be precise - quick approximations are key here.

Once you have that down pat, start learning the more obscure ones. The obvious ones would be stuff like Angstroms, Light-years, Astronomical Units, Parsecs, Cubits, Grains, Troy ounces, Hogsheads, Svedbergs, etc. Wikipedia has a great list of units of length and time, if I can remember, and you should check it out.

Fermi is one wild event. Have fun!
Thanks for the tips!!

Re: Fermi Questions C

Posted: January 14th, 2018, 4:54 am
by appleshake123
scioly2012 wrote:
whythelongface wrote:
scioly2012 wrote:Hello! I just got put into Fermi Questions, but I've never even done an inquiry event before. I'm really lost, can anyone tell me what types of units I should know? Thanks :D
I know this isn't the answer you want, but ideally you want to know as many units as possible. Start with familiarizing yourself with metric and imperial units, and what their prefixes mean. Make sure you can convert between the prefixes well (example: a meter is 1E9 nanometers, a megawatt is 1E6 watts, etc). Then, start getting an idea of how to approximate conversions between imperial and metric (a foot is about 30 centimeters, a meter is roughly a yard, a mile is about 1.6 kilometers, stuff like that). Since Fermi is about approximation, you don't have to have be precise - quick approximations are key here.

Once you have that down pat, start learning the more obscure ones. The obvious ones would be stuff like Angstroms, Light-years, Astronomical Units, Parsecs, Cubits, Grains, Troy ounces, Hogsheads, Svedbergs, etc. Wikipedia has a great list of units of length and time, if I can remember, and you should check it out.

Fermi is one wild event. Have fun!
Thanks for the tips!!
What's even better is that those obscure units are typically created in order to describe specific stuff.
EX: AU is earth to sun distance, angstroms for diametre of molecules etc. they are values while also being relative sizing.

Re: Fermi Questions C

Posted: January 14th, 2018, 6:34 am
by jonboyage
appleshake123 wrote:
scioly2012 wrote:
whythelongface wrote: I know this isn't the answer you want, but ideally you want to know as many units as possible. Start with familiarizing yourself with metric and imperial units, and what their prefixes mean. Make sure you can convert between the prefixes well (example: a meter is 1E9 nanometers, a megawatt is 1E6 watts, etc). Then, start getting an idea of how to approximate conversions between imperial and metric (a foot is about 30 centimeters, a meter is roughly a yard, a mile is about 1.6 kilometers, stuff like that). Since Fermi is about approximation, you don't have to have be precise - quick approximations are key here.

Once you have that down pat, start learning the more obscure ones. The obvious ones would be stuff like Angstroms, Light-years, Astronomical Units, Parsecs, Cubits, Grains, Troy ounces, Hogsheads, Svedbergs, etc. Wikipedia has a great list of units of length and time, if I can remember, and you should check it out.

Fermi is one wild event. Have fun!
Thanks for the tips!!
What's even better is that those obscure units are typically created in order to describe specific stuff.
EX: AU is earth to sun distance, angstroms for diametre of molecules etc. they are values while also being relative sizing.
Ahem barns ahem

Re: Fermi Questions C

Posted: January 14th, 2018, 7:42 am
by appleshake123
jonboyage wrote:
appleshake123 wrote:
scioly2012 wrote:
Thanks for the tips!!
What's even better is that those obscure units are typically created in order to describe specific stuff.
EX: AU is earth to sun distance, angstroms for diametre of molecules etc. they are values while also being relative sizing.
Ahem barns ahem
Isn't it an area of a barn house? like really small like a barn

/s

Re: Fermi Questions C

Posted: January 14th, 2018, 9:14 am
by Unome
Does anyone know any good ways to do factorials? I've been having problems estimating them, and memorization isn't helping.

Re: Fermi Questions C

Posted: January 14th, 2018, 9:16 am
by whythelongface
Unome wrote:Does anyone know any good ways to do factorials? I've been having problems estimating them, and memorization isn't helping.
My partner mentioned something called Stirling's Approximation on our shared document, although I haven't looked closely into it.