why we say"over in the meadow"? meanning | grammar what is the grammar of "over in"?I can not understand.I know over means being up to something,but what about "over in "?
Meaning of "over in" I read this sentence in a book:     I just took part in a study over in the Psychology Department.   Why do we add over in front of in the here?
Much less than, what does that mean? What exactly does $\ll$ mean?  I am familiar that this symbol means much less than.   ...but what exactly does "much less than" mean? (Or the corollary, $\gg$)  On , the example they use is that $1\ll 9999999999$ But my thought on that is that $10^{10^{10^{11}}}\ll 10^{10^{10^{11}}}+9999999999$, based on the same logic. But I am confused because the numbers are comparitively.   Logically, I am really kinda spent dealing with this issue of mine. Thanks for any input.