As far as I know, the smallest thing we can actualy measure is the Neutrino. Have we been able to find anything smaller yet?
The real reason driving this post is that I've been thinking about two different things lately. One, what's the largest known thing in the universe and two, what's the smallest?
And after thinking about the largest, I quickly lost interest as that's just not quite as thought provoking to me. What really gets me thinking is the small stuff.
I feel that if an object can have mass, then there can always be one smaller. But that would mean there are no absolute smallest and only infinitely smaller.
For an object to have mass it has to be made of... something, and that something needs to be made of something, so on and so forth. Hence the infinately smaller.
I know no one knows, I just needed to post it >.<