We may love or hate the word " quantum physics"
as opposed to normal. traditional or classical physics.
In classical physics, Newton's apple fell onto the ground when:
trees is shaken, wind gusts, apples just think are ready to fall, so many variables etc.
In quantum physics on another hand word "quanta" means that something happens " exactly" !
Electron decided to go on the trip because just eaten the exact amount of energy. Not statistically average.
Nobody knows why and this is why we call its "spooky" whole quantum business.

PS.

This long shot/parallel illustrates that we try to do our sailing and racing " quantum" since it is more like classical.

We may have all those modern electronic tools but behind is only a human sailor, wind, and elements and struggle.
We could not measure exactly how much fun we had participating

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sailquik said..
Macro. Phone manufaturers have been trying to add increased GPS accuracy to their smartphones for years, mainly for navigation. But there is not much demand for anything much more than for that. For that sort of accuracy poeple use different specialised devices that do those tasks SOOOOOO much better.

And there are numerous papers, published and available on the internet, where top science teams in universities and companies have shown how they are trying to get decimeter locational accuracy to a point where it might be practical for smartphones. They are mostly still a long way off from practical solutions. Do some searches. Do some study. Start by searching even this forum for posts about these sorts of things.

Get yourself educated by your own efforts, and then, when you have at least some sort of up to date understanding, come back with something that has not been already researched and done. It's somewhat rude to keep expecting people in this forum to be educating you from scratch all the time.

Do your experiments yourself and see if you learn anything we don't already have a pretty good handle on.

You are right again. I just have a look at thread near by and there is s lot of knowledge , data, calculations to learn and consider. Like k888 post for example sounds convincing.
Taking into account that we are really getting near cm accuracy in near future current system 1/1000 precision on GPSTC make perfect sense.

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Macroscien said..
In quantum physics on another hand word "quanta" means that something happens " exactly" !
Electron decided to go on the trip because just eaten the exact amount of energy.

No on both statements.

Quanta means "fixed" or "specific" - it does not mean "exactly".

Electrons jump orbitals when they absorb a minimum-quanta of energy. The orbital itself requires an exact energy level -> thus an electron can absorb more than the level needs, the remaining energy is given off as a photon (aka heat)

Or light. It's called fluorescence.

Accuracy and precision:

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segler said..
Accuracy and precision:

So it looks from picture that High precision, low accuracy is our worst enemy.
If we statically average both Left results we fi ish very close to perfection- Down Right.
But that coukd be idealistic approach.
Because is every device do the same mistake
Top Right will be very fair for our sport competition.
Things become even quite complex when you try to fairy decide order on winning list.
Handing rewards and prizes at Burrum sometimes you need to say
Here is 75% probable winner in 500 meters competition.
But knowing exactly limitation of our gps devices and other elements effecting recording we coukd theoreticly design system to be 100% fair, not just statistically probable.
It mean that grey area or errors qualify competitors to be even , no winner or looser if results gets too close.

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mathew said..

Macroscien said..
In quantum physics on another hand word "quanta" means that something happens " exactly" !
Electron decided to go on the trip because just eaten the exact amount of energy.

No on both statements.

Quanta means "fixed" or "specific" - it does not mean "exactly".

Electrons jump orbitals when they absorb a minimum-quanta of energy. The orbital itself requires an exact energy level -> thus an electron can absorb more than the level needs, the remaining energy is given off as a photon (aka heat)

Yes and no. Because electron to go on the trip need exact energy. What to do with rest, excess is up to him.
Like to buy train ticket you need $100.
Your Mum give you $125.
Now you could buy a ticket and buy yourself a candy too.

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mathew said..

Macroscien said..
In quantum physics on another hand word "quanta" means that something happens " exactly" !
Electron decided to go on the trip because just eaten the exact amount of energy.

No on both statements.

Quanta means "fixed" or "specific" - it does not mean "exactly".

Electrons jump orbitals when they absorb a minimum-quanta of energy. The orbital itself requires an exact energy level -> thus an electron can absorb more than the level needs, the remaining energy is given off as a photon (aka heat)

Yes and no. Because electron to go on the trip need exact energy. What to do with rest, excess is up to him.
Like to buy train ticket you need $100.
Your Mum give you $125.
Now you could buy a ticket and buy yourself a candy too.

Ooops when I started this replace I didn't not realised that my sentence is as quantum as quantum world can be. Both true and lie same time!

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Macroscien said..
Things become even quite complex when you try to fairy decide order on winning list.
Handing rewards and prizes at Burrum sometimes you need to say
Here is 75% probable winner in 500 meters competition.
But knowing exactly limitation of our gps devices and other elements effecting recording we coukd theoreticly design system to be 100% fair, not just statistically probable.
It mean that grey area or errors qualify competitors to be even , no winner or looser if results gets too close.

Such a system is already designed and used

WGPSSRC records are 'Claimed' speed. That is: The average of two side by side GPS's, and then subtract the reported error for that run. You then have a figure which you can claim with 99%+ probability that you did AT LEAST the claimed speed.

A few issues for GPSTC:

1. Not everyone wants to always run 2 identical GPS's side by side.

2. People like to have a higher number, even if there is a 50% probability that the number you did is a bit lower. (Remember, that there is the same 50% probability that you went slightly faster as well - within the reported error range.)

For the GPSTC competition we think that the accuracy we have now is good enough, and it is certainly a lot better now than when we started many years ago. Team rankings on a day are not very often within the error margins of the devices used, and if they are we can have a great time sledging each other about who was really faster or agree to call it a draw.

Also, if we adopted the 'claimed speed" approach, there would be race among the competitive sailors to get the best, most accurate GPS device, with the lowest error figures that they could find... Hmmm...

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Macroscien said..
Yes and no. Because electron to go on the trip need exact energy. What to do with rest, excess is up to him.
Like to buy train ticket you need $100.
Your Mum give you $125.
Now you could buy a ticket and buy yourself a candy too.

Nope. The analogy would be:
- You want to by a ticket for $100
- Your mum gives you $125
- You buy a ticket for $100, the $25 stays in your pocket.
- Since you have $25 in your pocket, you cannot get on the train.
- The $25 starts burning a hole in your pocket, you lose it all to the other passengers
- Most likely the other passengers are standing close enough that you cannot get on the train - they take your ticket
... there is a small possibility that the other passengers weren't standing close enough, so you got on the train

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mathew said..

Macroscien said..
Yes and no. Because electron to go on the trip need exact energy. What to do with rest, excess is up to him.
Like to buy train ticket you need $100.
Your Mum give you $125.
Now you could buy a ticket and buy yourself a candy too.

Nope. The analogy would be:
- You want to by a ticket for $100
- Your mum gives you $125
- You buy a ticket for $100, the $25 stays in your pocket.
- Since you have $25 in your pocket, you cannot get on the train.
- The $25 starts burning a hole in your pocket, you lose it all to the other passengers
- Most likely the other passengers are standing close enough that you cannot get on the train - they take your ticket
... there is a small possibility that the other passengers weren't standing close enough, so you got on the train

We could agree to ticket price to be $100.
Exactly $100.
That is our quanta.
What to do with with remaining change is hard to say . For me at least. Because we could now buy a sweets or cake. Loose it or give somebody else. If electron get kinetic energy for this excess then is rather not in portion like before but analog , can get any value at wish.

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Macroscien said..
We could agree to ticket price to be $100.
Exactly $100.
That is our quanta.
What to do with with remaining change is hard to say . For me at least. Because we could now buy a sweets or cake. Loose it or give somebody else. If electron get kinetic energy for this excess then is rather not in portion like before but analog , can get any value at wish.

No. The quanta is only realised when the electron drops back to the ground-state (or some other lower orbital), which gives off an _exact_ photon (say as used in a laser). That isn't true for the absorption of the photon, which must occur with more energy from a higher-energy source, because in this universe the second-law of thermodynamics is usually conserved.

Back to the example - the person gets exactly the $100, then they cannot purchase the ticket - they must hand over more than the $100. The $100 is just the actual cost of the train ride, the extra is the overhead of doing business.