Not only does the stuff I'm currently copyediting do a lot of explanations of newtons and the like, several of the books (it's a series, each state gets slightly different content, because they each have different standards and tests, plus some of the examples are tailored locally: Pennsylvania gets examples about its rivers, Louisiana about a train to New Orleans, etc.) have, as an example of reading data off a line graph, the acceleration of gravity at different latitudes.
Not enough that you'd notice casually, but enough to be easily measurable. The polar radius of the Earth is about 20 miles greater than the equatorial diameter (since g=Gm1m2/d2, reducing d increases g), and centrifugal force reduces felt gravity, again moreso at the equator and diminishing toward the poles.
A google on "gravity latitude" produces, among other things, links to calculators to let you take this into account when reading a barometer, and the information that the definition of g (i.e. Earth's gravity) specifies sea level at 45° latitude.
If you're interested in the topic (and not just editing it), you may want to read the letter to Physics Today I mention below, in which a man experimentally verifies time dilation via altitude (he spent two days up Mount Rainier with his family, having installed cesium clocks both at home and in the minivan).
(no subject)
Not only does the stuff I'm currently copyediting do a lot of explanations of newtons and the like, several of the books (it's a series, each state gets slightly different content, because they each have different standards and tests, plus some of the examples are tailored locally: Pennsylvania gets examples about its rivers, Louisiana about a train to New Orleans, etc.) have, as an example of reading data off a line graph, the acceleration of gravity at different latitudes.
(no subject)
(no subject)
A google on "gravity latitude" produces, among other things, links to calculators to let you take this into account when reading a barometer, and the information that the definition of g (i.e. Earth's gravity) specifies sea level at 45° latitude.
(no subject)