Also, you can install is to memory stick and use it everywhere.

IMHO Eclipse is great for Java, good for C++ and OK for PHP. But the main reason I use it is its UI consistency. Once you learn to use it it doesn't matter in what language you working on, so using it in a new language has almost zero learning curve.

Also it makes it easy to work on different projects in different languages at the same time - a blessing with applications that use both python and C++ code for example.

The problem with this unit is that no atom will fit in a cross section of a barn and matter in this scale is just wave-particles that have no real volume... on the other side, to measure the megaparsec distance you'll have to wait a few million years for the light to reach out from the other tip of the volume unit. so basically you're telling you relative that they'll have to wait a few million years until they're ready to cook, and even then, only with sufficient advancement in quantum mechanics to stuff atoms through such a small area...