Editing Miscellaneous
Warning: The database has been locked for maintenance, so you will not be able to save your edits right now. You may wish to copy and paste your text into a text file and save it for later.
The administrator who locked it offered this explanation: This wiki has been made read-only to circumvent an authentication error.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
Questions that really don't belong in any category, even a new one... | Questions that really don't belong in any category, even a new one... | ||
− | |||
Scales: | Scales: | ||
− | * What are the masses and radii of the following objects: electron, proton, earth, sun, solar system, globular cluster, open cluster, galaxy cluster. | + | *What are the masses and radii of the following objects: electron, proton, earth, sun, solar system, globular cluster, open cluster, galaxy cluster. |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | * What is | + | *What is the spatial extent of the visible universe? |
− | + | *If we go out at a clear night, how many stars can we see with naked eyes? |