Ermmm, in my previous game when I colonized a class 18 radioactive planet I got a "54% bonus to research" event. And after that a +700% research bonus tile on the surface. Needless to say that planet alone produced ~1/3 of all research of my 20-planets empire. When the game ended it was producing ~2k research alone. A MEGA planet for the slowest-tech game.
BR, Iztok
Yes but i'm talking about a 'noticable' effect on tech production. Your talking about building up a planet over time.
If you have a saved game... reload it and do this experiment; Give that planet to another race and then see if science production bothers changing - my bet is that it won't!
of course you will see the effect if you try to move the slider bar. I guess i'm just a bit frustrated because nothing i do apart from finding anomalies ever changes tech production 'noticably'.
edit; also it would be nice if once apon a time when i build a science capital or the omega lab that i can look and see 3 turns knocked off my research! but no, nothing, always no change.