Halfbakery Idea Implementaion: Roaming Fish

[Alex Golec]

Originally Posted by Rich Wong

My goldfishes are somewhat stupid.
If I put them in one of these roaming balls, all they want to do is search around for food and get themselves into trouble with the neighbor's cat.

If it could work (go find some lightweight water... ) the fish could safely play with the cat -or- start chasing the cat and have fun with its :cough: low oxygen deadly :cough: fishbowl. But the goldfish probably wouldn't mind. Now all you need is a solar-powered revolving light that stays bouyent in the middle of the globe, just to add that special pinch of robotics to the recipe.

_Alex

[ahecht]

Originally Posted by Alex469

If it could work (go find some lightweight water... )

It's not really an issue of lightweight water. In order for the fish to not float to the top or sink to the bottom, it adjusts its swim bladder so that is exactly the same density as the water around it. If the fish were heavier than the water, it would sink.

[Wayne C.]

Why do I want my fish loose in the house?

Instead- how about making a big hamster ball that would hold a human inside that would roll along the bottom of a lake so you can cross over while observing the fishes in THEIR home. I guess if you got tired you could make it less dense than the water and float to the surface.

WC

[Testament-Doom]

Originally Posted by Wayne C.

Instead- how about making a big hamster ball that would hold a human inside that would roll along the bottom of a lake so you can cross over while observing the fishes in THEIR home. I guess if you got tired you could make it less dense than the water and float to the surface.

Hmmm... I seem to have recalled a little invention that does that. Probably a submarine, lol. But iit would be cool to have a ball where a human can walk underwater. Unfortinatley, the pressure rises as you sink to the bottom and thus, this will break your ball easily. Also you need SOME sort of oxygen tank. Something that can convery carbon-dioxide to oxygen, hmmmmm? (if that was ever possible, lol). Plus, you need to make the ball have a density of 0 (that means the oxygen inside it too and the human).

Example, how about a metal sphere that sits at the bottom of the ball.

Hmmm... we could also try a design like a robo-maid but it would be designed so the fish can see where he's going, and it can detect the position of the fish. I would say the sensor system would be on the top. Have it like an infered system. Once someone figures out how to make a fish survive in the ball, all it needs to do is move and the infered will tell where the center is, where the fish is, and move according to where the fish is. I'm sure it can work.

[Alex Golec]

Originally Posted by ahecht

It's not really an issue of lightweight water. In order for the fish to not float to the top or sink to the bottom, it adjusts its swim bladder so that is exactly the same density as the water around it. If the fish were heavier than the water, it would sink.

The thought behind the lightweight water is that the fish would be able to make more of a difference in weight if the water didn't weight as much.

As for the human bubble- that would be kinda fun, provided you have enough air and the bubble never broke.

_Alex