Have you done any experiments with PVC pipe to see what kinds of pressures it can withstand? I'm thinking that a small diameter pipe maybe a meter long could be a nice third stage. Any plans for a 3rd stage?
Doesn't this kind of fly in the face of, 'there are no stupid questions' etc? If people need help don't they, um, need help, no matter what their level of proficiency? How about a line of signs regarding impatient, arrogant, or just generally difficult help desk people?
Leave the squirrels alone. Humans are destroying everything they touch on the planet, like irresponsible children. Leave the freaking animals alone, that's so shallow it's repulsive.
Santa Cruz Roasting Company sells two coffees I really like, both light roasts - both are packed with caffeine: the longer a coffee is roasted the less caffeine it has because heat breaks down caffeine. Indian Malabar and Zoom are the two I recommend, smooth, not bitter in the least, I could talk about these coffees like some people talk about wine!