Recent content by OhyesOhno

Hmm what I actually mean by a model is a machine that can be used... I guess that works but I just need to work on a bigger scale. If I do make a bigger machine, how will I be able to make a machine that replaces the CaOH once it is used up?

yeah i guess its a bit hard to make a model out of it. Well i am thinking of making a photovoltaic cell using an organic material... maybe polycarbonate? It is bio-degradable right? Is it hard? How long will it take to make a solar panel?

Hmm... I did some more research, and find topics such as green gasoline, carbon dioxide scrubber... I was thinking of doing that and make a model out of it. But the number of resources are very limited because its quite a recent invention. Do you think its possible?

I found this article: http://www.sciencedaily.com/releases/2008/09/080929123941.htm and it talks about a machine that absorbs CO2 invented by a professor from University of Calgary. I'm thinking to make a feasible model of it for construction (it's actually a school project), but the machine...

Any fraction would satisfy (a,1) right? Because if x/y = a/1, then a = x/y so any fraction will do it?

Okay, so the signaling molecule involves physics then? Since signals in brain are electrical signals? Thanks a lot!

Homework Statement There's this one exam problem that I cannot solve... Here it goes: Consider the set Z x Z+. Let R be the relation defined by the following: for (a,b) and (c,d) in ZxZ+, (a,b) R (c,d) if and only if ad = bc, where ab is the product of the two numbers a and b. a) Prove that...

How is that related to chemistry then?

Oh yeah, sorry about that. Ax(BUC) = (AxB)U(AxC) is what I meant. Sorry!

This problem involves modern algebra sets... particularly on cartesian products... so here's the problem: Prove that A x (BUC) = (A x B) U (B x C) Note that U here is 'union' How do I prove that?? I know by the law of De Morgen that A U (BnC) = AUB n AUC but I don't know how to prove...

organic photovoltaic cells... is that even possible? And if it's possible... I want to conduct an experiment on it (I'm not in US so my number of resources are limited

Does anyone know about the IB Diploma course? We're supposed to make a project or investigation and analyze the physics, chemistry and biology aspect of it... the theme of the project is 'Go Green' and it can be literal (do things involving green things, paint green stuff)... I'm confused of...

Ah... I wish this forum have a sketch post or something. Well, thanks a lot then! I think I can imagine what it looks like now.

Alright! And do you think I should make the plane and throw it around and see its horizontal displacement or put it in front of a fan and see how much lift it gives me? Sorry for asking a lot, I'm kind of blank about this topic :P

So by wing cross section you mean is the thickness of the convex of the wing? Can I do that for my independent variable? Or the angle of the wing (the tilt)?