Why does a spray bottle work?

Post by annabellish » Thu, Jun 14, 2018, 5:48 PM UTC

acjohnson55 wrote: post #130

annabellish wrote: post #126

Earlier quoted context omitted.

I got your point, I just don't agree with it! I think that's a consistent logical position to take, but I don't think it's undeniably _ethical_ because of that.

I guess I'm missing what it is to disagree with. Are you arguing that people with good ideas should simply be entitled to the capital to pull them off, to avoid the need to compete in capital markets?

I mean, sure, that'd be great. I think it'd need one heck of a societal overhaul to achieve, though.

If we wanna keep it in terms of a capitalist market, the problem is that investors are essentially selling a service just like anyone else, but because wealth inequality is where it is, there's relatively little competition in that "market". Thus, what you get is very high "prices" for relatively poor "service". This is a problem.

In an ideal free market, investors are just another kind of business, and would compete both on price and their offering such that everyone was getting a good deal and everything moved along efficiently. In the real world, investment is a very concentrated market, meaning that the deals are shoddy and inefficient.

Post by zaarn » Mon, Jun 18, 2018, 9:27 AM UTC

TheSoftwareGuy wrote: post #20

One way valves are basically diodes, but for fluids rather than electrons. You can also make logic gates out of just diodes (or one way valves). Imagine writing software for a hydraulic computer!

I luckily don't have to imagine it. During an electric course in school for half a year where we learned all kinds of stuff like high voltage circuitry, we also learned pneumatic logic.

Almost all electric components can be replicated in pneumatics; capacitors, resistors, transistors, diodes (including Zener diodes)... And from that you can form simple logics.

One design we had to generate was to build a pneumatic gate which would open and close by pressing four buttons (two for each side of the gate) and light up a red, yellow or green light depending on whether or not the gate is moving (of course the lights use a pressure sensor).

Of course nobody builds that because such a system would be expensive compared to a Attiny with a shift register and a few relays capable of doing the same.

Re: Why does a spray bottle work?

Re: Why does a spray bottle work?