koti

Now I need to change my codes everywhere.

There is something perversely magnetic about that combination of audio/video.

Yes, "Neros77" is a master at that. Check out his youtube channel for more

How do you like new retro wave music? :

Why is this in physics. How about we start off the new year without this incoherent babble. Or is the conservation of energy not going to be with us in 2018?

All I can think of is some form of an active system...like a small portable source of heat that would keep the food warm. 2 hours seem to be far too long to keep the food warm just with passive methods especially in cold weather conditions. From the top of my head, what I'd do is use one of those standard food carriers which pizza delivery uses and stick a heat source inside - 6 good quality 18650 LiOn rechargeable batteries (the ones used in your laptop) could easily provide a heat source capable of sustaining proper food temperature for hours. Just hook up the batteries to a bunch of thin copper wires put a control chip with a thermostat to control the temperature according to conditiins. The delivery guy could hook up the carrier to recharge after he’s done with the delivery. This kind of setup could serve you a couple of years without the need to replace the cells. 18650’s have at least 500 discharge cycles on them before they need replacement. You coukd custom build this or Im sure somebody manufactures a simillar product.

Done. I’ll start preparing tonight. I’ll try to convince Emily to have some wine if you’ll agree to breastfeed little Peter - don’t eat anything spicy so you can fill in for her Phi.

But its all just time dillation...the twin paradoxes and this experiment does deal with exactly the same issue. Total elapsed time for plane A and plane B are different in relation to the clock on the ground. They got a result with clock A vs ground clock and compared it with clock B vs ground clock. The velocity of clock A on one plane was different from the velocity of clock B on the other plane - in relation to the ground clock. I don’t get what you don’t get

Excerpt from wiki, seems pretty straight forward to me unless Im missing what your actual concern is: ”...a clock aboard the plane moving eastward, in the direction of the Earth's rotation, had a greater velocity (resulting in a relative time loss) than one that remained on the ground, while a clock aboard the plane moving westward, against the Earth's rotation, had a lower velocity than one on the ground”

I might be wrong but I think the airplane moving east moves at a higher velocity than the plane which moves west because the earths rotation velocity adds to it.

It is an end of an 18 hours of work day for me here and I have to say that this coming from Mordred is going to make my sleep a lot lighter for me

I thought you might have taken me on my suggestion to go running but instead it looks like you had a drink. Translation - I can’t make out what you mean.

Right? Vmedvil with this is swimming right into a sharks mouth screaming I love sharks!

Phew... thanks for your assurance, it makes me feel safe and warm & fuzzy inside

Sittin in Hell with Phi sounds a lot better than spending time in Heaven with morons.

Chillax Vmedvil. I don’t know where you at but if the weather is letting you, I strongly suggest a decent distance run to clear your mind

Happy Hollidays to you too Dave. So when is the next SFN gettogether taking place?

I think I got it. We have to distinguish between defining uncertainty of past events and uncertainty of future events. Past events uncertainty can be measured, future events uncertainty can only be aproached with probability. @swansont, I think you might have had a conception of past events uncertainty in your mind hence your measurement aproach whereas I had my focus on future events uncertainty. My „Wednesday” example/question essentially becomes a question of „will the time arrow still flow forward” which is a different subject.

Understood. But how else other than with probability can we aproach uncertainty? It should be safe to assume that uncertainty is a concept which deals only with future events so if following your „measurement” aproach to describing uncertainty we are hitting a wall here. I’m sure I’m missing something trivial...Wednesday inevitably came almost 2 hours ago so I wil continue tomorrow.

the middle one (the small bottle) is probably an immersion oil for your specimen.

If he answers its a done deal and the question about certainty/uncertainty doesn't exist. Don't pursue this, it's a dead end.

Your clock example positions the attempt to find an answer to the OP in the time measurement "comfort zone" and in this case it works really well I agree. Are you saying that it doesn't make sense to apply the same comfort zone to my "zero/non zero tomorrow will be Wednesday probability" dilemma? The only variable which changes is the granulity. I mean purely from GR and QM point of view, can we model a scenario in which there will be something else than a Wednesday tomorrow? We can substitute Wednesday with whatever other point in time in the future (larger than Planck time and smaller than infinity) and apply whatever means of measurement we desire. Or am I being dense here?

Gravity is not caused by curvature of space-time. Gravity is curvature of space-time.

Is there a non zero probability that tomorrow will NOT be Wednesday for my frame of reference? It's a genuine question, I'm trying to come up with an answer. If the probability of this is non zero then I guess we can assume that the definition of uncertainty is "intrinsic and unavoidable property of nature" If the probability is exactly zero then I'm confused.