Recent content by remcook

Hi there! You're lucky: I'm really an engineer-turned-physicist. I did a M.Sc. in Aerospace Engineering and now doing a PhD in planetary physics. The step wasn't actually that bad. Depends also on what area of physics you're going to work of course. But as long as your Maths is OK, you should...

Why not? You probably made your argument many times before, but I just saw this. and why is Kyoto a gamble? what is there to loose?

didn't read your post well enough, but I think that book also has stable hamiltonians in them.

Do you have access to a good library? In the book of Gomez et al. (2001) there's a list of initial conditions for halo orbits around L2. Here it is...(It's a bit of a mess, because I copied it from a pdf table. only arranged the first few rows, but you get the drill)...

..but how is that different from just numerically integrating the equations of motion: \ddot{\vec{r}_j} = \sum_{i=1}^n -\frac{GM_i}{r_{ij}^3} \vec{r}_{ij} (for i is not equal to j, no bar means magnitude) and \vec{r}_{ij} = \vec{r}_j - \vec{r}_i according to your definition...

khavel...if i may ask...how does your results differ from any other n-body simulation? From what I see of your e-book, you just present equations of motion, not an actual solution. Could you explain some more?

I highly doubt any new shuttle being build. Just for the simple reason that shuttles aren't very cost-effective. As it stands now, the shuttle will retire after the 'core complete' of the ISS. If there wasn't for the ISS, it maybe would have already been retired. NASA has to get that CEV...

it was pretty hilarious at times, but also pretty lame/childish at other times. loved the parts where they made fun of the characters being puppets, like the 'tigers' :)

it's a unit. N is Newton, the unit of force.

"been in love" Is this the same as 'falling in love'? or infatuation? or loving someone? There's also platonic love, parental love, etc etc. And where is the border between liking someone and being in love with someone? what's 'real' love? something to ponder about. anyway, I think I...

it's up to the airliners. can they fill up this large thing? or do they want to fly more frequent with smaller planes, means more flexibility, but possibly more expensive. by the way...a few weeks ago airbus said they also wanted to make something like the 7e7.

what do you think about it yourself? any clues?

a point of general discussion (something which I can't get my head around at this moment): what makes gravity so special that you don't feel it? ah, just thought of it: Gravity Mass = Inertia Mass (http://members.tripod.com/~jimmar/index-L5.html)

But the Earth's gravity is still the only thing accelerating you (assuming a Kepler orbit). So the difference between your acceleration and the acceleration by gravity is zero.

the g you're feeling is basically something pushing you where you don't want to go. If you stand on the ground, you are accelerated by gravity, but the ground is 'pushing' you up just enough to make you stand still (this sounds strange and maybe it is a strange way of explaining it) So if...