Only partly. It still can sink by rotating along the axis connecting the two bodies if we are talking about two connected half spheres. You'd need three half domes which would be quite inefficient.
I would make a circular flat bottomed boat with shallowish sides, and at the centre have a tube like pit extending downwards which I would tip the marbles into, obviously only you know how much volume the marbles use and how much clay you have.
Kickaha and Amorph couldn't moderate themselves out of a paper bag. Abdicate responsibility and succumb to idiocy. Two years of letting a member make personal attacks against others, then stepping aside when someone won't put up with it. Not only that but go ahead and shut down my posting priviledges but not the one making the attacks. Not even the common decency to abide by their warning (afer three days of absorbing personal attacks with no mods in sight), just shut my posting down and then say it might happen later if a certian line is crossed. Bullshit flag is flying, I won't abide by lying and coddling of liars who go off-site, create accounts differing in a single letter from my handle with the express purpose to decieve and then claim here that I did it. Everyone be warned, kim kap sol is a lying, deceitful poster.
Now I guess they should have banned me rather than just shut off posting priviledges, because kickaha and Amorph definitely aren't going to like being called to task when they thought they had it all ignored *cough* *cough* I mean under control. Just a couple o' tools.
Don't worry, as soon as my work resetting my posts is done I'll disappear forever.
Kickaha and Amorph couldn't moderate themselves out of a paper bag. Abdicate responsibility and succumb to idiocy. Two years of letting a member make personal attacks against others, then stepping aside when someone won't put up with it. Not only that but go ahead and shut down my posting priviledges but not the one making the attacks. Not even the common decency to abide by their warning (afer three days of absorbing personal attacks with no mods in sight), just shut my posting down and then say it might happen later if a certian line is crossed. Bullshit flag is flying, I won't abide by lying and coddling of liars who go off-site, create accounts differing in a single letter from my handle with the express purpose to decieve and then claim here that I did it. Everyone be warned, kim kap sol is a lying, deceitful poster.
Now I guess they should have banned me rather than just shut off posting priviledges, because kickaha and Amorph definitely aren't going to like being called to task when they thought they had it all ignored *cough* *cough* I mean under control. Just a couple o' tools.
Don't worry, as soon as my work resetting my posts is done I'll disappear forever.
Don't know nothin' bout birthin' no boats, but I do know a little about clay and ceramics.
An average clay fired at a high enough temperature will be water proof or close enough (water will take a pretty long time to seep through, and I'm guessing the boat doesn't have to do its thing all day). Its called "vitrification" and its why porcelain doesn't need a glaze.
Even fired at a lower temperature, the clay will absorb water fairly slowly, and never enough to make it heavier than the unfired clay, which has a great deal of water incorporated into it.
So if total weight is an issue, fire away-- you also get the added avantage of a rigid hull that won't deform under stress.
Don't know nothin' bout birthin' no boats, but I do know a little about clay and ceramics.
An average clay fired at a high enough temperature will be water proof or close enough (water will take a pretty long time to seep through, and I'm guessing the boat doesn't have to do its thing all day). Its called "vitrification" and its why porcelain doesn't need a glaze.
Even fired at a lower temperature, the clay will absorb water fairly slowly, and never enough to make it heavier than the unfired clay, which has a great deal of water incorporated into it.
So if total weight is an issue, fire away-- you also get the added avantage of a rigid hull that won't deform under stress.
Thanks does fireing (i'll have to use an oven) decrease weight noticably?
Comments
Originally posted by Scott
Dual-hull solves the stability problem.
Only partly. It still can sink by rotating along the axis connecting the two bodies if we are talking about two connected half spheres. You'd need three half domes which would be quite inefficient.
Now I guess they should have banned me rather than just shut off posting priviledges, because kickaha and Amorph definitely aren't going to like being called to task when they thought they had it all ignored *cough* *cough* I mean under control. Just a couple o' tools.
Don't worry, as soon as my work resetting my posts is done I'll disappear forever.
Now I guess they should have banned me rather than just shut off posting priviledges, because kickaha and Amorph definitely aren't going to like being called to task when they thought they had it all ignored *cough* *cough* I mean under control. Just a couple o' tools.
Don't worry, as soon as my work resetting my posts is done I'll disappear forever.
An average clay fired at a high enough temperature will be water proof or close enough (water will take a pretty long time to seep through, and I'm guessing the boat doesn't have to do its thing all day). Its called "vitrification" and its why porcelain doesn't need a glaze.
Even fired at a lower temperature, the clay will absorb water fairly slowly, and never enough to make it heavier than the unfired clay, which has a great deal of water incorporated into it.
So if total weight is an issue, fire away-- you also get the added avantage of a rigid hull that won't deform under stress.
Originally posted by addabox
Don't know nothin' bout birthin' no boats, but I do know a little about clay and ceramics.
An average clay fired at a high enough temperature will be water proof or close enough (water will take a pretty long time to seep through, and I'm guessing the boat doesn't have to do its thing all day). Its called "vitrification" and its why porcelain doesn't need a glaze.
Even fired at a lower temperature, the clay will absorb water fairly slowly, and never enough to make it heavier than the unfired clay, which has a great deal of water incorporated into it.
So if total weight is an issue, fire away-- you also get the added avantage of a rigid hull that won't deform under stress.
Thanks does fireing (i'll have to use an oven) decrease weight noticably?