Astronomy
The numbers on earth only are even quite amazing. But if we have a look at it from a bit farer away it becomes gigantically.

light and sound
revolution of earth, moon and sun

light and sound

contents
Sun
Speed seems to be something quite clear. An airplane or a rocket seem to be quite fast. But if we look at the speed of light and sound, it becomes a bit less clear.
A light beam started on the 1.1.1999 would now be km far away.


It gets a bit clearer, if we express this number it in orbits around the earth.
The light beam would have travelled around the earth times.


And it would have travelled from the earth to and back from the sun times.


The same phenomenon is demonstrated by the sound. Even being much slower it also proceeds quite a bit.
A noise made on the 1.1.1999 would evetually be heard now km far away.*


The sonic speed in water is even a bit higher.
In water the sound would be km far away.**
* *Expansion in the atmosphere at 20 degrees Celsius.
** **Expansion in distilled water at 20 degrees Celsius.
Source: Collection of formula after P. Wild, University of Berne

Revolution

Contents
planet system
Again and again it is amazing, how many kilometers we proceed without noticing it. The only rotation of the earth has an immense influence.
A human being standing on the equator has travelled a distance of km since the beginning of 1999 as a result of earth rotation.*


The moon on its way around the earth has travelled a distance of km since the 1.1.1999.*


Meanwhile the sun has travelled a distance of km around the center of the galaxy.


Die Sonne hat seit dem 1.1.99 um das Zentrum der Milchstrasse KM zurückgelegt.


It would take days until the sun would be in the same place again where it has been on the 1.1.1999.
* based on sideric revolution times.
Source: Collection of formula after P. Wild, University of Berne