Search found 4 matches

by JulianHzg
Wed Mar 27, 2013 8:46 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1190: "Time"
Replies: 106538
Views: 41581035

Re: 1190: "Time"

It is zooming, from a point slightly right of the castle. The comparison clearly shows that the difference is decreasing on the right of the castle, so it might also be compressing due to drying sand or something, but I would also say zooming.

last4_ol.png
last4_ol.png (9.7 KiB) Viewed 19149 times
by JulianHzg
Tue Mar 26, 2013 1:37 pm UTC
Forum: Science
Topic: Gravity and work done
Replies: 4
Views: 1677

Re: Gravity and work done

You have to keep in mind that all these observations are symmetrical. That means that, as long as you don't destroy mass, the total gravitational force of the system, from outside the system, stays (about) the same. Also, there is gravitational binding energy, the amount of energy required to pull a...
by JulianHzg
Mon Mar 25, 2013 9:22 pm UTC
Forum: Science
Topic: Orbital Path vs. Orbital Period
Replies: 4
Views: 3006

Re: Orbital Path vs. Orbital Period

By the third of Kepler's laws of planetary motion, that's approximately true, cf: "The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit." (imagine Link to Wikipedia article here) That is, if the objects are very small relativ...
by JulianHzg
Mon Mar 25, 2013 8:45 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1190: "Time"
Replies: 106538
Views: 41581035

Re: 1190: "Time"

Randall mentioned earlier that some frames are missing from the gif, and especially the way to the water and back seem very abrupt to me. Does anyone have any additional frames there? That's between fb0cabb8215b77a9d2fbdb44511eccdf9b921125bff5060dc511c9a49e97aa81.png and 426033682a26a0012a6f8e0c4728...

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