Recent content by David Laz

Interesting. Will check out the link, cheers.

Hey guys, A friend and I were wondering what would happen if you were trapped inside a spacecraft with no power to run any life support systems such as heating/cooling. Assume there is plenty of usable air. Would the spacecraft interior get hotter due to warmth generated by the human...

Hmm I see. I guess I was asking somewhat of an ill defined question. Cheers.

Hey guys I'm wondering if there is an 'ideal' design for a wheel for a car. I guess things that would be taken into account would be weight, structural integrity and the designs moment of inertia. I would imagine there would be ideal designs that minimized the moment of inertia and thus would...

I think I know what your getting at. But here's an example of the sort of question I need help with. Maybe you could explain/show me. heres a question from an old exam: The following table gives the yields from a field experiment on two varieties of wheat, Hard and Common, with four...

Say I'm given a bunch of models on the same set of data how does one determine whether a valid comparison can be made between any two of them using an F Test? Is it that the estimation space of one has to be a subset of the other? Is there any easier, more practical way of determining this...

Hmmm you're probably right. And yeah now that I've checked all the MC12 Corsa pics I have do have headlight covers on em. For those interested there are hundreds of awesome HQ pics at http://www.jabbasworld.net/index.php just click on the 'Car Gallery' -> 'Ultimate Picture' board.

I'm no fluid dynamics/aerodynamics expert, but the uncovered headlights on the Maserati MC12 and the Ferrari FXX just irk me... it just feels like having a plastic cover over them would be a better aerodynamic solution if not a cosmetic improvement. However the fact they're not there in the...

I'm very much interested in this topic well. Thanks for the titles and links.

If anyone could give my thread https://www.physicsforums.com/showthread.php?t=143762 a read and offer any advice I would be most grateful. I now realize I should have posted all that stuff here. :o

Thanks for the fast response. The idea of being an engineer has been floating around the back of my mind for a while now, even in high school I thought it could be something worth pursuing, however with lack of a specific goal It didn't go anywhere. It hasn't seriously clicked that I could...

Heya's. I'm 21 years old, and nearing completion of a B.Sc (majoring in Statistics and Operations Research at the University of Melbourne) Will finish it next year. I've always loved and somewhat enjoyed maths and physics. I did a B.Sc because I've never had a good idea of what I want to be or...

I've always wondered what was preferable between torque and power when wanting to accelerate. I sometimes get the idea it doesn't matter because of the way things are geared. Could be waaaaaaay off though. I'd like to add I'm very interested in the physics and engineering principles involved...

I'd say a small % froze. But it was very noticable.

Bottle was very much full, contained only water, wasn't frozen because it wasn't in the freezer for long enough. There may have been some frozen water in there, but more was produced when it was slammed.