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Physics, Astronomy & Cosmology / Re: What if the universe really is infinite?

« on: 20/10/2021 09:59:25 »

I know the idea of another 'me' out there in our universe is totally hypothetical and possibly not provable one way or another, ever. But for those who have indicated the possibility of this being the case, have they or do they need to take into consideration what happens to 'me' and our universe before relativity, at the uncertain quantum level?

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Physics, Astronomy & Cosmology / Re: What if the universe really is infinite?

« on: 19/10/2021 21:43:21 »

I have often read about infinite numbers of infinite universes and that there will be another 'me' doing exactly what I am doing now at this exact time. If I am the product of the laws of physics in 'our' universe, and there are an infinite number of universes, could there not be an infinite variety of the laws of physics applying to each universe which could mean there would never be another me?

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General Science / Science discoveries and advancements 2021?

« on: 17/10/2021 21:57:14 »

Are there any particular standout discoveries and advancements made so far this year in the world of science?

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General Science / Do the theories of quantum and relativity have to be unified?

« on: 02/10/2021 22:01:57 »

Is it critical that the quantum world and the the world of relativity be unified? Are there real world implications for there being unification or not? Or is it just a matter of the math/numbers don't add up and at the end of the day it doesn't affect anything?

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General Science / Re: Super conducting magnets and bigger objects.

« on: 30/09/2021 20:45:24 »

Origin you are correct. I have a laymans interpretation of 'theory'.

I have a theory concerning relativity - I go away and test that theory - the theory proves to be correct - then I have a fact.

I have a theory concerning quantum mechanics - I go away and test that theory - the theory proves to be correct - then I have a fact.

As a layman, the 'fact' that they cannot be unified means that they remain theories.  So I guess my issue is I have problems unifying theory and fact?

And yes matter cannot travel at the speed of light so the question is debatable.

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Physics, Astronomy & Cosmology / Re: Is space in, beyond and around the universe?

« on: 01/07/2021 20:13:20 »

The space itself is expanding. So is this expansion known as inflation? And does inflation occur at a faster rate in parts of the universe that has less mass, away from galaxies for instance? And within our own galaxy and solar system the expansion is in all directions but at a slower rate due to gravitational influences?

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Physics, Astronomy & Cosmology / Re: Our solar system in relation to universe expansion?

« on: 05/03/2021 14:44:00 »

Okay many thanks, I've got it now. 

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Physics, Astronomy & Cosmology / Our solar system in relation to universe expansion?

« on: 04/03/2021 09:08:21 »

The universe is expanding everywhere in every direction as a consequence of the so called big bang ... what effect does this have on our solar system?  Is the space between the objects in our solar system expanding too? 

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Physics, Astronomy & Cosmology / Expansion of the universe - what is being measured?

« on: 17/07/2020 09:05:00 »

I was just reading about the Atacama Cosmology Telescope in Chile. Research is as active as ever in trying to determine the age of the universe and the rate at which the universe is expanding. Does this research measure the rate at which matter is travelling through the universe or measure the actual expansion of the fabric of the universe?

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Physics, Astronomy & Cosmology / Do solar neutrinos have a bypass through the curvature of space/time?

« on: 04/03/2020 08:53:28 »

Given the almost non existent size, mass and neutrality of charge of a solar neutrino, and it's subsequent lack of interaction with matter, does the neutrino travel through the universe on a straight line trajectory unaffected by the curvature of space/time?

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Physics, Astronomy & Cosmology / Re: How are the results of the double slit experiment recorded?

« on: 04/07/2017 20:22:28 »

ah thanks, now it makes sense. It's difficult to articulate questions when you're a non scientist and not conversant in scientific language.

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Physics, Astronomy & Cosmology / Re: How do I explain gravity to my children?

« on: 02/07/2017 20:04:30 »

I teach in the UK. We have finished for the summer now. I am not a science teacher nor am I supposed to be teaching them science either!!! There is a cool bunch of guys that I like to chat with when they are not in lessons. I just like to throw a question out to them and then we get into a conversation about it. I'm not a scientist in any way or form but I am interested in physics and chatting things over with the guys is very rewarding. Their ideas and views are generally quite simple and always refreshing.  I always come away with a smile on my face.

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Physics, Astronomy & Cosmology / Re: How do I explain gravity to my children?

« on: 01/07/2017 21:07:59 »

Excellent replies and very useful. I work with post 16 students who have learning difficulties and the practical suggestions are very helpful.