If nothing else, you could send him a message asking if he found the error in your drawing. That might cost him some sleep at least.

Does this have anything to do with the Dog Star?[sarcasm]I wouldn't take it so Sirius.[/sarcasm]

There Is an Arrow On That Monument, So He Held ThatThat's humorous, except that everybody knows there is no arrow on a triangulation station. (Only o...

TrueWhat happened to Gene Kooper, who used to post frequently about mineral surveys?

Solar storm vs compassTo your question: If you google the topic, you will find many statements that a solar storm can cause "several degrees" deflect...

Perhaps they used the record bearings from the USGS station to its reference marks as their basis of bearing.There are a couple USGS stations with tha...

RIPThe two subjects in this thread, death and motorcycles, remind me of my uncle who rode a Gold Wing. He died a little over a year ago at age 83 on ...

Dropbox is one of the cloud storage services. They offer 2 Gbytes for free and more storage for money. It will synchronize a set of folders under c:...

[sarcasm]Love those old plats.[/sarcasm]I looked at the plat where a friend's son bought his house, and find the sum of angles on the exterior to be o...

Here's a startThey seem to be using lat-lon coordinates.Since there isn't any MNSS (Martian Navigation Satellite System) or a network of passive MMS (...

>When the bubble is good, it should remain in the same position as the pole is rotated, even if somewhat off center if the jig is slightly off.At b...

Here's a startComical. But as a moneymaking scheme, probably as good as the pet rock.Don't buy it unless your lot is staked. Anybody registered to d...

OGRA Special ProvisionIf he accepted the monuments instead of making a virtual or actual pincushion, then don't knock it.

You don't need super accuracy. An error of 0.1 inch in pressure is about 1 ppm in distance.