dance4life51

I'm not quite sure how much you now about propellers, but if you are familiar with the chord of a propeller, I am working to see if varying chord lengths in propellers effect the efficiency of the propellers, and if so, how?

Thank you dirty America. I am not entirely certain why you think I wish to avoid the "effort" variable. I spent several hours working on this yesterday. The reason I decided not to do this project is because there is no way to measure the force with which to use the scrapers. Therefore, it would be difficult to convince the judges that this project is a scientific project, with so large of a variable. Please think first. Thank you also big314mp. Your suggestion did help a lot

I have decided not to do something with ice sampling- too hard, and too many variables. Instead I have decided to do an experiment with propellers. Does anyone know a good website with strong background info on propellers, that is somewhat dummy proof? Thanks!!!!

My brother has always said I was terrible at explaining things I will try my best to explain this. I am doing a science fair project about water on mars. Since water does not really exist in liquid form on mars, I need to do it with ice instead. The main idea of my project is to build several different apparatuses that can find/ bring up the ice. I hope I have made this more clear to you. Thanks!

Does anyone know of any kind of simple way to make a sort of ice sampler? I have to make one that collects ice, and I'm not quite sure where to begin. If anyone has any ideas, I would be eternally grateful!! Thanks!!! Theresa