Now that I've caught up with Real Lifetm
, I can respond to this.
I found the video and explanation over on the Woodgears
site. The guy that runs that site is an engineer, and always does an excellent job explaining processes and doing tests. He also builds some cool shop equipment, and I'm sure careful study of some of his stuff could prove useful for building homemades.
This particular video showed him doing some things that are nearly exactly what hoppers seem to do - and I figured that it'd apply at least for us to study.
By bringing it up, I was not trying to say that gravity doesn't play a significant part in dart loading, or that the air pressure behind the dart doesn't actually fire it, but that I think the dart may be being chambered
by the Venturi effect. And I figured that knowing that would allow many of you, the most innovative of nerfers, to use it effectively rather than accidentally or blindly; if
in fact it is what is at work here.
I also think that we might benefit from purposely trying
to use the Venturi effect -even if it isn't in use now - maybe we can make hoppers without end caps, for example. Another thought I had was that we might actually benefit
from strategically restricting the airflow - in the video that tiny nozzle can blow around all sorts of other stuff (Obviously, he has an air compressor hooked up to it while we don't. He was mostly launching low-mass particles, we aren't. That isn't the point here); maybe the increase in air velocity would be helpful for getting darts fired.