According to "How long would it take to fall through the center of the Earth?" [1], it would take 2 * 42 min = 84 min, ignoring air resistance, and, (probably) survival of the passengers.
This approximation accounts for this fact: "As you fall there is less and less mass between you and the center so there is less and less to pull you down"
This approximation accounts for non-uniform density of the earth:
> Klotz based his calculations on the internal structure of the planet as determined from seismic data. While the Earth's crust has a density less than about 187 lbs. per cubic foot (3 grams per cubic centimeter), Earth's center has a density of about 811 lbs. per cubic foot (13 grams per cubic centimeter). The density of the planet does not rise in a straightforward manner the farther down one goes — there is a sharp 50 percent increase in density at the boundary of the planet's mantle and its outer core about 1,800 miles (2,900 km) below Earth's surface.
> Now, using a more realistic model of the Earth, Klotz finds the fall would take only about 38 minutes and 11 seconds, about 4 minutes faster than thought.
Why wouldn't the passengers survive? Even though they will reach terrifying speeds, at no point will their acceleration exceed a relatively gentle 9.8ms^-2
Reminding me of that place in india on a coastal temple, where there was an arrow put up in ancient time. It has a text in Sanskrit that says that it points to South pole and there is no land between the arrow and south pole. Not able to recall the name. Something like that
Depends, if you are going right through the earth's core it will probably be forever impossible (though maybe someone in materials science knows more than me?). However if you are trying to go closer to the surface it is possible today, it isn't the most direct route, but on the other hand you probably want to pop up every once in while anyway. New York to eastern LA is only a question of economics, we have the technology, and you would want to have a station several cities along the way as long as you are digging so the tunnel wouldn't go deep. Note that I said eastern LA, you can't get too far west without crossing a major fault line and that is not something I think we can handle. (I'm not aware of any fault lines on the rest of the path, but they would stop this tunnel - I wouldn't be surprised if someone pointed one out)
It took me a while to find anywhere interesting to me (Canada and Spain) that actually lined up. Unfortunately Valencia falls into the ocean, but Madrid lines up with south east coast of the North Island of New Zealand!
The constantly spinning globe is infuriating UX.
I'm not sure what the point of this is; all it does it show a chord on a spinning perfect sphere (which the Earth isn't)
'Thesis project'... which part of this requires a university education?
I'm afraid that red line is it. The gaming industry spoiled us, giving us so many weird "simulators". This thing would be called "red line simulator" on Steam, and would likely still sell well.
> Thesis project for the Interaction Design master’s at Malmö University
Having to enter the start by a name (or your location) and destination by a 2d grid while neither can be selected on the globe as far as I can tell certainly is a choice you can make for "Interaction Design". A good one though?
Never mind that a joystick is a very imprecise way to select your end point ... I keep trying to hit an island out in the Pacific and cannot with the coarseness of the joystick.
Nice; my "even better if" assuming this thesis project is still in motion:
1. Needs a "stop rotating" button (or a more prominent one if there is one already), especially for something that's for "Interactive Design Thesis"; it's a fascinating toy to play with but after 30 seconds of Globe rotating away from position I put it in, I got frustrated
2. This may be a preliminary version, but again, if a thesis for Interactive Design, being able to click on the globe would seem a pretty intuitive / expected reaction for most initial users
3. Feels like less of a "tunnel" thing and more of a "find out what's on the other side of the globe". It's a cool toy that sets incorrect and high expectations through the title/name.
I meant you probably have to use it on mobile to get the full experience as intended by the developer, and you very well knew I meant that. You just chose to be pedantic to someone on the internet, congrats. I hope it improves your life.
I did not choose to be pedantic and I'm sorry you concluded that. I also did not get much meaning into your own comment other that it suggested there was "more to be seen".
I commented because, having tried it on desktop and then on mobile, the experience is still fairly similar. Most people commenting on it "not doing much" were generally expecting more functionality -e.g. some additional visualization of the tunnel or whatever-, not just a different input control. Telling people to try it again but on mobile would probably not make them find such additional value.
I'm sad you took this so personally and so negatively.
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[ 2.8 ms ] story [ 118 ms ] threadIs it possible to stop the rotation of the Earth?
It would be nice to be able to enter the coordinates instead of the name of the city, for people that lives in small towns.
The future is bright: wheels in space, underwater trains, and everyone gets a spandex jacket.
[1] https://www.physicscentral.com/explore/poster-earth.cfm
This approximation accounts for this fact: "As you fall there is less and less mass between you and the center so there is less and less to pull you down"
This approximation accounts for non-uniform density of the earth:
> Klotz based his calculations on the internal structure of the planet as determined from seismic data. While the Earth's crust has a density less than about 187 lbs. per cubic foot (3 grams per cubic centimeter), Earth's center has a density of about 811 lbs. per cubic foot (13 grams per cubic centimeter). The density of the planet does not rise in a straightforward manner the farther down one goes — there is a sharp 50 percent increase in density at the boundary of the planet's mantle and its outer core about 1,800 miles (2,900 km) below Earth's surface.
> Now, using a more realistic model of the Earth, Klotz finds the fall would take only about 38 minutes and 11 seconds, about 4 minutes faster than thought.
The tunnel could easily double as an extremely powerful geothermal plant.
0. https://en.wikipedia.org/wiki/Submerged_floating_tunnel
https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Br... (tunnel #2 in this image)
'Thesis project'... which part of this requires a university education?
It's pretty damn close, though, to 0.3%.
Having to enter the start by a name (or your location) and destination by a 2d grid while neither can be selected on the globe as far as I can tell certainly is a choice you can make for "Interaction Design". A good one though?
Digging a tunnel would have to deal with deep earth concerns, such as how to deal with the core, what to do with the removed material, etc.
1. Needs a "stop rotating" button (or a more prominent one if there is one already), especially for something that's for "Interactive Design Thesis"; it's a fascinating toy to play with but after 30 seconds of Globe rotating away from position I put it in, I got frustrated
2. This may be a preliminary version, but again, if a thesis for Interactive Design, being able to click on the globe would seem a pretty intuitive / expected reaction for most initial users
3. Feels like less of a "tunnel" thing and more of a "find out what's on the other side of the globe". It's a cool toy that sets incorrect and high expectations through the title/name.
Otherwise, pretty neat :). Cheers and good luck!
Other than that the functionality is still the same; it doesn't do more on mobile.
I commented because, having tried it on desktop and then on mobile, the experience is still fairly similar. Most people commenting on it "not doing much" were generally expecting more functionality -e.g. some additional visualization of the tunnel or whatever-, not just a different input control. Telling people to try it again but on mobile would probably not make them find such additional value.
I'm sad you took this so personally and so negatively.