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Is this project still alive? Every few months (or years...) I remember about it and check up on it. It was looking very promising... Also, is the link on the first post still the most up to date version? Orbit hanger says it was added 21/09/11.

Newtonian physics is not incompatible with a finite speed of light, but there is nothing special about the speed of light in Newtonian physics, unlike in relativity where it plays the roll of the maximum speed at which matter (and information) may travel.

How do people on the forum do it? Just by eye?

Hi, I am learning how to do off-plane Earth to Moon transfers (using TransX) and can't find out how to accurately find the Moon's time to node (so I can launch about 3 days before it gets there). I know you can approximate it by just looking at the orbit and launching when the Moon is so many...

As far as I can tell, those videos don't give any reasons why these technologies can't exist in the future beyond the fact that people were saying we'd have them a lot sooner. There's no reason why humans couldn't make a computer which mimics the human brain, it's just a matter of understanding...

Hi everyone, I am looking at getting a new monitor to replace my unspeakably old current one. Budget is around £300. Current contenders are: Eizo Foris FS2333 Asus VG248QE BenQ XL2420T The top one has better image quality but the lower two have better response time, refresh rate etc. It will...

http://www.spaceengineersgame.com/ Only in Alpha at the moment but looks interesting. Sort of like Minecraft in space :)

Ok, round two. http://www.ebuyer.com/544655-acer-aspire-e1-laptop-nx-m09ek-015 To get an SSD AND decent RAM AND processor AND graphics always comes out over budget, even going up to £480. This one has a fair amount of RAM and an OK processor. It doesn't have an SSD and the graphics are only HD...

Like this? http://www.amazon.co.uk/Acer-Aspire-15-6-inch-Laptop-Silver/dp/B009QZCYU4 (a tad expensive but I could probably stretch to it) or something else? I have also heard bad things about Windows 8. Such as?

Hello, I will soon be going to University (physics, of course :P ) and will be getting a laptop. It will mostly be used for work however I would also like it to be able to run games, including (obviously Orbiter) and FSX (although I realise it is a very demanding program, especially with...

Greetings! Does anybody know of any good books concerning classical field theory (Lagrangian formalism etc)? Not on any particular theory in particular (electromagnetism), just in general. ...yep that's about all I've got to say, thanks in advance! :thumbup: Will

Well I think I finally got it, if anybody is interested the solution was to consider a graph of probability amplitude (phi) against x and say that the total amplitude to go between two points is the sum of the amplitude to go between the (infinite number of (hence integral)) points between them...

Hello, I am reading a book called "Quantum Mechanics and Path Integrals" by the one and only Richard Feynman. When it comes to define the sum over paths it uses an analogy with the Riemann Integral (that's fine) to come up with the equation ∫…∫ ∫∅[x(t)]dx1dx2…dxN-1 I think I can see physically...

Ok here goes (again). The list is somewhat longer this time.... Archaeology: A very Brief Introduction Physical Principals of the Quantum Theory The Meaning of it All Oxford Companion to Cosmology Surely You're Joking Mr Feynman? Quantum The Collected Stories of Arthur C. Clarke A Student's...

Feynman is one of my personal inspirations. He had such a unique way of looking at everything and his brilliant personality and insight comes across very well in his books and lectures. Brilliant guy!

Very much looking forward to using this, however whenever I try to select the MFD from the list, I get a CTD. I have tried in several scenarios and I have minimal addons (DG IV, Sound, UCGO, Aerobrake, BaseSync, TrackIR), Orbiter version is 100830. Log: **** Orbiter.log Build Aug 30 2010...

I use base sync (bottom of this page: http://koti.mbnet.fi/jarmonik/Orbiter.html ) to align with the base then aerobrake (here: AeroBrakeMFD ) to sort out the re-entry

Thanks for the help guys! I think I got it: x*=xdot ta = initial time (t subscript a, only partially translated from MS word to OF) xa = initial position tb = final time xb = final position L=(m/2)x* ∂L/∂x* = mx* ∂L/∂x = 0 (d/dt)(mx*) = 0 = mx** => x** =0 => x(t) = A+Bt xa = A+Bta xb =...

You mean dL/(dx(dot)) ? I thought that at first but surely because x(dot) is a function of x that isn't the case? I'll see if I can type this up in Word's equation editor tomorrow and paste that into here.

Hello, I am reading "Quantum Mechanics and Path Integrals" and the first few chapters are a 'recap' (at least it would be for the age of people it's aimed at) of classical mechanics. There is a section on the Lagrangian and principle of least action etc and the derivation of Lagrange's equation...