## Fermi Questions C

talkingturtle101
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### Re: Fermi Questions C

Consider the partial sum of a harmonic series; that is, $\sum_{n=1}^{k} \frac{1}{n} = 1 + \frac{1}{2} + \frac{1}{3} + \dots + \frac{1}{k}$. What is the minimum $k$ such that the partial sum will be above 12?
If you cut down all the trees in the world please don't try this at home, then how many Major League-size baseball bats could you make?
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2017-18 Events: Astro, Chem Lab, Fermi Questions, Microbe

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### Re: Fermi Questions C

If you cut down all the trees in the world please don't try this at home, then how many Major League-size baseball bats could you make?
My attempt
How many textbooks do you need to equal the weight of all the water in the Pacific Ocean?
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NeilMehta
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### Re: Fermi Questions C

If you cut down all the trees in the world please don't try this at home, then how many Major League-size baseball bats could you make?
My attempt
How many textbooks do you need to equal the weight of all the water in the Pacific Ocean?
Attempt
Solution
How many letters are in George Orwell's Animal Farm?
i can't feel my arms wtf i think i'm turning into a lamp

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Justin72835
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### Re: Fermi Questions C

Attempt
Solution
Determine the volume of water the average American will use for bathing throughout their whole life divided by the volume of the ocean.
"The fault, dear Brutus, is not in our stars,
But in ourselves, that we are underlings."

University of Texas at Austin '23
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### Re: Fermi Questions C

Determine the volume of water the average American will use for bathing throughout their whole life divided by the volume of the ocean.
Which ocean?
University of Texas at Austin '22
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Justin72835
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### Re: Fermi Questions C

Determine the volume of water the average American will use for bathing throughout their whole life divided by the volume of the ocean.
Which ocean?
My bad, I meant all of Earth's oceans combined.
"The fault, dear Brutus, is not in our stars,
But in ourselves, that we are underlings."

University of Texas at Austin '23
Seven Lakes High School '19

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### Re: Fermi Questions C

Determine the volume of water the average American will use for bathing throughout their whole life divided by the volume of the ocean.
Which ocean?
My bad, I meant all of Earth's oceans combined.
Coolbeans ty
My attempt
How many burgers were sold in America since the Model T was invented?
University of Texas at Austin '22
Seven Lakes High School '18
Beckendorff Junior High '14

Justin72835
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### Re: Fermi Questions C

Attempt
How many text messages have been sent since the release of the first iPhone?
"The fault, dear Brutus, is not in our stars,
But in ourselves, that we are underlings."

University of Texas at Austin '23
Seven Lakes High School '19

NeilMehta
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### Re: Fermi Questions C

Attempt
How many text messages have been sent since the release of the first iPhone?
Attempt
solution
What is the collective volume of all of the sci-o medals ever awarded (not including ribbons)?
i can't feel my arms wtf i think i'm turning into a lamp

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Unome
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### Re: Fermi Questions C

What is the collective volume of all of the sci-o medals ever awarded (not including ribbons)?
Attempt
Continuing the scioly theme: how many total Fermi Questions tests have been written for Science Olympiad tournaments in the 21st century?
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NeilMehta
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### Re: Fermi Questions C

What is the collective volume of all of the sci-o medals ever awarded (not including ribbons)?
Attempt
Continuing the scioly theme: how many total Fermi Questions tests have been written for Science Olympiad tournaments in the 21st century?
Based on your estimate, I'd say there's E3 tests, considering the event was run for two years again, there isn't really a clear solution

Next question: what is the total number of posts on the Scioly.org forums?
i can't feel my arms wtf i think i'm turning into a lamp

voted least likely to sleep 2018, most likely to sleep in class 2017+2018, biggest procrastinator 2018

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### Re: Fermi Questions C

Next question: what is the total number of posts on the Scioly.org forums?
My attempt
How many Planck lengths would New Horizons travel in the time it takes for our Solar System to make one orbit around the center of the Milky Way?
Last edited by Adi1008 on July 5th, 2017, 2:15 pm, edited 1 time in total.
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NeilMehta
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### Re: Fermi Questions C

Next question: what is the total number of posts on the Scioly.org forums?
My attempt
How far, in Planck lengths, would New Horizons travel in the time it takes for our Solar System to make one orbit around the center of the Milky Way?
There's a post count at the bottom of the main page
i can't feel my arms wtf i think i'm turning into a lamp

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Unome
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### Re: Fermi Questions C

Next question: what is the total number of posts on the Scioly.org forums?
My attempt
How far, in Planck lengths, would New Horizons travel in the time it takes for our Solar System to make one orbit around the center of the Milky Way?
There's a post count at the bottom of the main page
By the way, the OBB archive has 177,009 posts, according to the Internet Archive (the Scioly.org History wiki page definitely has some incorrect information). You also forgot to include the posts from here, though I doubt those would change the answer.
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Unome
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### Re: Fermi Questions C

Current question, since we need some activity:
How far, in Planck lengths, would New Horizons travel in the time it takes for our Solar System to make one orbit around the center of the Milky Way?
Userpage
Chattahoochee High School Class of 2018
Georgia Tech Class of 2022

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