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Topic: How precisely can a right angle be measured?
Replies: 9   Last Post: Apr 6, 2013 3:48 PM

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Tom Potter

Posts: 497
Registered: 8/9/06
Re: How precisely can a right angle be measured?
Posted: Apr 3, 2013 6:57 AM
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"Will Janoschka" <> wrote in message
> On Tue, 2 Apr 2013 14:25:01, Absolutely Vertical
> <> wrote:

>> On 4/2/2013 7:27 AM, Tom Potter wrote:
>> > Apparently no one understands my questions.
>> > "How would one measure a right angle
>> > without using geometry,
>> > or the 3-4-5 relationship,
>> > and how precisely can a right angle be measured?"
>> > Let me put it like this,
>> > what **primary standard** do physicists, the military,
>> > astronomers , industry, etc.
>> > use as their ORTHOGONAL standard,
>> > and how accurate are these standards MECHANICALLY?
>> > I dare say they trust Euclid and Pathagoras.
>> > I suggest that one should "trust BUT verify."
>> > I know how to create an ORTHOGONAL standard
>> > that is accurate to 1x10^10 or better,
>> > Do you?

>> why do you think such a standard is required?

> His Question is how to measure?
> One must be able to construct more
> precise, than "can" be measured,
> so that the measurement has all
> the error, not the construction.
> This is particularly true for a standard!

This is ONLY true for a standard!

Tom Potter

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