The difference is very minute, however the difference is there.. the difference is actually the amount that said object pulls on the Earth itself. so the difference between a 1 pound weight pulling on the Earth vs a 12 lbs bowling ball. Considering the Earth weighs in at a massive $1.317 \times 10^{25}$ lbs you could get a rough estimate by saying the Earth exerts 1g, So a 1 pound weight would exert $1/1.317 \times 10^{25}$ of that force, where the 12 pound bowling ball would exert $12/1.317 \times 10^{25}$ g. Hence the 12 pound bowling ball pulls the Earth to itself quicker than the 1 pound weight. So what is the difference? It's so small that it is almost immeasurable, but the difference is there none-the-less.

Why do objects fall at the same acceleration?
I've setup and configured webdav on debian using the following tutorial:

http://www.unix-tutorials.com/go.php?id=3711

I want to be able to download and upload files to the webdav share using a web browser. I can download and upload files to the webdav share if I mount it to my file system but we don't want the other people accessing this to have to do that. We want people to be able to go to the URL in their web browser, authenticate, and do everything, download, upload in their browser. 

When I go to the webdav URL in my browser and authenticate I'm given a list of the webdav share's contents and I can download the files but I don't see any way to upload files? How can I upload files to the webdav share using a web browser? 

Thanks in advance.
