I don't think it has really, the concepts are all the same, it's just the materials that have changed.
http://en.wikipedia.org/wiki/History_of_the_battery
how the anemometer changed over time
The battery itself could be shot, the lead plates inside do wear out over time.
The laws of physics have not changed over time. Our understanding of them has changed over time.
how has coal mining changed over time
People changed over time by growing up.
no they have changed over time. no they have changed over time.
how has neils bohr model changed over time
well it has changed over time bye people dancing it different styles.
how the seismograph change over time
how has deleware changed from 1776
his skills changed
The Hybrid cars has changed over time thanks to the ever changing technology.