Vanilla 1.1.9 is a product of Lussumo. More Information: Documentation, Community Support.
Posted By: GrimerWaynegage is obviously someone who has been banned and is now reverting to his original handle. At a guess I would say it was nova. He is certainly ignorant enough.
Posted By: nova
This is funny coming from a guy who thinks pre stressed concrete holds energy. There might be enough stored energy in the stressed rebars to light an led (momemtarily) but it would be very costly energy wise to extract that energy.
Posted By: hairykrishnaPosted By: nova
This is funny coming from a guy who thinks pre stressed concrete holds energy. There might be enough stored energy in the stressed rebars to light an led (momemtarily) but it would be very costly energy wise to extract that energy.
Hang on, I don't normally agree with Frank, but there can be an enormous amount of energy stored in the tendons used to provide the stress in pre stressed concrete. It's a big bundle of steel cables (i.e. a spring) stretched by some enormous hydraulic jacks and then wedged in place. Why would you think that this system doesn't contain energy?
Posted By: AngusPosted By: hairykrishnaPosted By: nova
This is funny coming from a guy who thinks pre stressed concrete holds energy. There might be enough stored energy in the stressed rebars to light an led (momemtarily) but it would be very costly energy wise to extract that energy.
Hang on, I don't normally agree with Frank, but there can be an enormous amount of energy stored in the tendons used to provide the stress in pre stressed concrete. It's a big bundle of steel cables (i.e. a spring) stretched by some enormous hydraulic jacks and then wedged in place. Why would you think that this system doesn't contain energy?
I third that.
Posted By: novaPosted By: AngusPosted By: hairykrishnaPosted By: nova
This is funny coming from a guy who thinks pre stressed concrete holds energy. There might be enough stored energy in the stressed rebars to light an led (momemtarily) but it would be very costly energy wise to extract that energy.
Hang on, I don't normally agree with Frank, but there can be an enormous amount of energy stored in the tendons used to provide the stress in pre stressed concrete. It's a big bundle of steel cables (i.e. a spring) stretched by some enormous hydraulic jacks and then wedged in place. Why would you think that this system doesn't contain energy?
I third that.
Why not harvest that energy?
Posted By: hairykrishnaPosted By: nova
This is funny coming from a guy who thinks pre stressed concrete holds energy. There might be enough stored energy in the stressed rebars to light an led (momemtarily) but it would be very costly energy wise to extract that energy.
Hang on, I don't normally agree with Frank, but there can be an enormous amount of energy stored in the tendons used to provide the stress in pre stressed concrete. It's a big bundle of steel cables (i.e. a spring) stretched by some enormous hydraulic jacks and then wedged in place. Why would you think that this system doesn't contain energy?
Posted By: nova
This is not the stored energy that Frank was alluding to in his previous claims. It had something to do with some kind of atmosphere or something Gamma or something.
I know what stored energy is. When cutting into pipes there is a possibility of releasing stored energy and it could be a dangerous thing to do.
Posted By: alsetalokinThe energy stored in those tendons is matched by a corresponding energy stored in the concrete itself. After all, the finished structure is static, therefore the tension in those steel members is balanced by compression zones in the concrete. I suppose.
(Edit to add: I am just going on general principles here; I really don't know wtf I'm talking about wrt concrete. I'm sure Frank will be chortling in his beard if I make an error.)
Posted By: hairykrishnaPosted By: alsetalokinThe energy stored in those tendons is matched by a corresponding energy stored in the concrete itself. After all, the finished structure is static, therefore the tension in those steel members is balanced by compression zones in the concrete. I suppose.
(Edit to add: I am just going on general principles here; I really don't know wtf I'm talking about wrt concrete. I'm sure Frank will be chortling in his beard if I make an error.)
I think so. The idea is to put the concrete into compression after all. As you say, despite his wacky FE ideas, I have no doubt that Frank knows a lot more about concrete than us...
Posted By: Angus
I think not. The forces balance but the energy is stored primarily in the elastic member, viz. the tendon. It is for the same reason that you pressure test scuba tanks with water (incompressible -if the tank fails the floor gets wet) not air (compressible-that is to say, elastic. If the tank fails there is an explosion).
Torpedoes run on compressed air motors. There is a new car concept that works the same.
Posted By: hairykrishnaHistoric torps used compressed air but modern ones have all kinds of crazy systems and are pretty much rocket fuel burning!
1 to 19 of 19