Recent content by Tanja

The sun's magnetic streamlines get through the earth, as far as I know (and I'm not a geolist ;-)). Well, lava contains some iron and other metallic stuff. Anyway, are there any arguments, that a mangetic field (like the one caused by the sun or the earth) cannot cause movements in hot lava and...

Hi Steve, that's interesting. Thanks for the information!

The entire message:**** Build of configuration Debug for project HalconTest **** **** Internal Builder is used for build **** g++ -IC:\Program Files\MVTec\HALCON-9.0\include -O0 -g3 -Wall -c -fmessage-length=0 -oRectangleIntoArray.o ..\RectangleIntoArray.cpp g++ -s -LC:\Program...

Hi, I use Eclipse, MinGW++ and the library Halcon and can't get it right. There must be something wrong with the linker options as I get the error message: "undefined reference to ... ". My settings under -> Properites -> C/C++ Build -> Settings-> MinGw++ Linker -> Libraries are...

Hi there, I'm looking for a good book dealing with all the power of python plots (3D plots, basemap-plots, mayavi ...) and with good code examples. Any recommendations? Thanks

I have a comment and a question on the solar constant TSI: The magnetic field and the solar wind of the sun are changing in a 11yrs cicle and also on a monthly and even daily basis. This magnetic field must be coupled in a certain way to the sun's temperature, since the magnetic fields arise...

Up, that was a fast answer. Ok, you nearly convinced me. Another last question: Why is water in my water glas not blue. And I had a look at a deep water tank that didn't appear to be blue at all. And if it's a slight blue absoprtion, why are some small lakes and small pieces of glaciers very...

Hello Skyhunter, thanks for your answer. But there's one question left Why does water in oceans, lakes and the glacial ice change its bleuish color if you look at it from different angles? If the color's origin are water quantum vibrational modes rather than light scattering it shouldn't...

I'm not familiar with Earth science, in particular ice formation in glaciers and I hope you can bear my rather stupid question: Is the change of a "normal" ice layer into glacial ice with frozen air bubbles a continuous transition or a spontaneous reaction? Someone told me that the air...

Are there any correlations of vulcanic activity and the strength of the Earth magnetic field in Earth history?

http://www2.slac.stanford.edu/vvc/cosmicrays/cratmos.html

Does anybody know where I can find the value for the Lenard Jones potential constants (sometimes denotes as A and B, sometimes as Sigma and Gamma) for specific molecules and/or solids?

I just wanted to add something regarding the understanding of non-locality and entanglement from the view of a non-scientist. While learning for my exams I thought it might be a good idea to explain things to a friend, who doesn't know anything about physics. She just said: "I don't understand...

Thanks strangerep. I found Srednicki's book and it really seems to be good. Anyway it will take me some time to go through it. Reilly, thank you for the deep insight. I guess, I will be going to the library next week to find a book on QFT.

Thanks for your reply. Yes, that's what I'm talking about. And my question is: Are these two equations connected in any way? I know that the propagator U is a matrix element of the Green's function: G = <x|U|x'>. But I've never seen a derivation. Dou you know some online resources treating...