A simple simulation for calculating how long it to fall through the Earth, assuming zero friction.
The simulation uses a linear interpolation of the PREM dataset:
Add this line to your application's Gemfile:
gem 'earthfall'
And then execute:
$ bundle
Or install it yourself as:
$ gem install earthfall
Earthfall.Simulation.new(verbose: true).run
time: 1 s, depth: 4.91 m or 0.0 km, velocity: 9.82 m/s or 35.34 km/h, gravity: 9.82 m/s^2
time: 2 s, depth: 19.63 m or 0.02 km, velocity: 19.63 m/s or 70.67 km/h, gravity: 9.82 m/s^2
time: 3 s, depth: 44.17 m or 0.04 km, velocity: 29.45 m/s or 106.01 km/h, gravity: 9.82 m/s^2
...
(ends at earths core and multiplies time by two)
=> seconds
- Fork it ( https://github.com/[my-github-username]/earthfall/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request