Are there any equations I can solve on a 10-hour road trip?

  • Context: High School 
  • Thread starter Thread starter Vebjorn
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Discussion Overview

The discussion revolves around finding equations that can be solved during a 10-hour road trip, with participants suggesting various mathematical problems and equations related to physics and mathematics. The scope includes simple and moderately complex equations suitable for a 15-year-old, as well as references to historical mathematical problems.

Discussion Character

  • Exploratory
  • Homework-related
  • Mathematical reasoning
  • Historical

Main Points Raised

  • One participant requests simple equations to solve during a road trip, mentioning previous calculations related to gravitational pull and Earth's rotation speed.
  • Another participant suggests calculating the velocity of the Earth's orbit around the sun and the moon's orbit around the Earth, as well as exploring gravitational acceleration and estimating the mass of the Earth and the sun.
  • A participant introduces Fermat's Last Theorem, questioning the possibility of integer solutions for the equation a^n + b^n = c^n for n>2, and mentions having a proof for the non-existence of such solutions.
  • Another participant expresses confusion about the problem and the term "integers," indicating a lack of understanding of the mathematical concepts involved.
  • A later reply clarifies the historical significance of Fermat's Last Theorem and notes that it was solved by Andrew Wiles, while also mentioning that the current best solution is not considered elegant.

Areas of Agreement / Disagreement

Participants present multiple viewpoints and suggestions without reaching a consensus on the best equations to solve. The discussion includes both straightforward physics problems and a more complex historical mathematical problem, indicating a variety of interests and levels of understanding.

Contextual Notes

Some participants express uncertainty about mathematical terminology and concepts, which may limit their engagement with certain problems. The discussion includes varying levels of complexity in the proposed equations.

Vebjorn
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Hi! I am going on a 10 h road trip further north in Norway tomorrow, does anyone here have some fun equations i can solve? I mean, simple equations. I calculated the gravitational pull between the moon and the Earth (Quite a big number i must say) Those kind of things, the equation to calculate the Earth's rotation speed? Anything that can keep me busy! I also appreciate some complicated equations as well, but not too complicated as i am 15 years old and internet is a bit of a problem in the car!

- Vebjorn
 
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Find the velocity of the Earth's orbit around the sun (simple enough, probably simplest).

If you like velocities, then calculate the same thing for the moon's orbit around the Earth.

Find the equation that relates gravitational acceleration (g - 9.81 m/s^2 on Earth) to mass and radius.

Find an approximate value for the mass of the Earth using the moon's orbit parameters (little more involved).

Repeat the same for the sun's mass and the Earth's orbit parameters.
 
Thank you! I leave in about 10 minutes! :)
 
Try this cute problem. Given the equation

a^n + b^n = c^n

is it possible to have a solution if a, b and c are all integers for any n>2? I have this neat proof that no solutions exist, but there isn't enough space left in this post to write it down.
 
Wallace said:
Try this cute problem. Given the equation

a^n + b^n = c^n

is it possible to have a solution if a, b and c are all integers for any n>2? I have this neat proof that no solutions exist, but there isn't enough space left in this post to write it down.


Hm, I'm not sure i got the question and I am not sure what integers means. Maybe that's why :P I'll look it up.
 
Sorry, my previous post was a bad joke. This puzzle is known as Fermat's last thereom, and it remained unsolved for many centuries. It was solved a few years ago but I think the consensus is that the current best solution is not very elegant, and a better one is still sought. Look up the history of the problem (google, wiki...) as it is a classic bit of mathematics history.
 

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