[lug] OT: android elevation app accuracy

[Bear Giles]

This reminds me of the old physics major joke about how you determine the
height of a skyscraper with a barometer.

A: find the building super and tell him you have a neat barometer for him
if he tells you the height of the building.

You'll need a level. A barometer isn't going to cut it, not even remotely.


On Sun, Sep 29, 2013 at 4:35 PM, Jed S. Baer <blug at jbaer.cotse.net> wrote:

> On Sun, 29 Sep 2013 16:28:03 -0600
> Jed S. Baer wrote:
>
> > > i.e. how much slope there is, if any,
> > > between these two corners
> >
> > I think your best bet will be to use a string level. Or, a 4 foot or
> > longer beam level, working along your gutter.
>
> Or,
> http://www.homedepot.com/p/Johnson-Hand-Held-Sight-Level-80-5556/202911589
> http://www.homedepot.com/p/Johnson-Torpedo-Laser-Level-40-0915/202258085
>
> Might be you know someone who has a laser level already?
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