Assembly would have been my guess as well.
Thermal simulation in German ? 
Very nice work by the way
My guess is RPL.
get a real antivirus
Avast isn't perfect, but in my opinion, it's the best free antivirus available. :)
And it ain't that far behind the best commercial antivirus available. :O
+ 1
I agree.
When I used Windows in the past, Avast always installed on every machines I own.
One killer feature is its ability to scan computer on boot. This way Avast can kick any virus even before the Windows started.
Matlab ?
Could it be Lua?
Real programmers use "copy con program.com" :) Here's proof that it works: youtube
So I use "copy con firmware.hex" - nah, just kidding, I write my firmwares in C (AVR-GCC), but the question was about the thermal simulation, and so far no hit.
About real programmers again (from xkcd):
since I can’t guess anymore, when will these be available? Did I miss that?
Java?
Structured text
Pascal ?
I know solidworks has some thermal simulation but that’s a 3d modeling program…
I’m assuming that thermal simulation using a bunch of data.
And my pharmacist friend who work with a lot of data using “X” to simulate his medicine, so my second guess is “X”.
I won’t tell what X is. It’s my second guess, I’ll never win anyway 
FORTRAN 77
LOL. I have no idea. But the driver looks really nice! Might be exactly what I need for an old project of mine to be completed…
Ok, I can’t win since my post ct is too low, but I have a guess….which I will not publicize
These things look awesome and I can think of a few lights I’d like to use them in!
Wow, looks like great driver!
Now we need GB for it or a light with it!
+1
Where can I buy?
Any one guess Ruby yet? My guess is Ruby