Wherever you come from, I can assure you that there is no finer place to live than Portsmouth, UK. Specifically Southsea, UK:
You only have to walk our local streets to meet Professor of Surrey University Theoretical Physics Jim Al-Khalili!
And then, a brief bus ride to North Portsmouth and you bump into Penny Mordaunt! The sweetheart of local politics.
I like this Town. As an extremely neuro-divergent person, autistic to the max, I just ask myself what problem am I trying to solve here?
Rearrange thefollowing preceeding articles into a wristwatch that works! 😀
You only have to walk our local streets to meet Professor of Surrey University Theoretical Physics Jim Al-Khalili!
And then, a brief bus ride to North Portsmouth and you bump into Penny Mordaunt! The sweetheart of local politics.
I like this Town. As an extremely neuro-divergent person, autistic to the max, I just ask myself what problem am I trying to solve here?
Rearrange the
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Magnificent News, my friends.
I have managed to crack open my Broken Rotary Dress Watch! I already possess a new strap.
I used the yellow thing.
Using my X20 microscope, it appears to be a 364 battery. I already have several! aka AG1.
I feel sure my Rotary watch will soon be ticking out Local time. Your Local Time may vary, if we are to believe Albert Einstein. All is Relative. in Spacetime. 🙂
I have managed to crack open my Broken Rotary Dress Watch! I already possess a new strap.
I used the yellow thing.
Using my X20 microscope, it appears to be a 364 battery. I already have several! aka AG1.
I feel sure my Rotary watch will soon be ticking out Local time. Your Local Time may vary, if we are to believe Albert Einstein. All is Relative. in Spacetime. 🙂
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My local jewellers will fit a new battery for a fiver.
Why is DIY always more expensive?
A mathematicians joke, An astronomer, a physicist and a mathematician are travelling on a train and see a sheep in a field.
Astronomer - they are black sheep around here,
Physicist - there is a high proportion of black sheep around here. 😉 Might have been population
Mathematician - there is at least one sheep here that is black one one side.
Astronomer could read astrophysicist.
Polya, book "How To Solve It" who is into this sort of thing and some other areas
https://en.wikipedia.org/wiki/Pólya_enumeration_theorem
One idea pushed in terms of solving things - have you seen something similar before,
Astronomer - they are black sheep around here,
Physicist - there is a high proportion of black sheep around here. 😉 Might have been population
Mathematician - there is at least one sheep here that is black one one side.
Astronomer could read astrophysicist.
Polya, book "How To Solve It" who is into this sort of thing and some other areas
https://en.wikipedia.org/wiki/Pólya_enumeration_theorem
One idea pushed in terms of solving things - have you seen something similar before,
An excellent communicator on gravity!
Here he is on how gravity makes us all age at different rates:
I don't know what this thread's on about: a bloke on the Internet alleged, in capital letters, that gravity is a conspiracy to keep us from floating away....
Geoff
Geoff
Gravity is what keeps us grounded, that's it really!
And Nay, my wee Scottish friend, Galu I am absolutely on a roll with my watchfixing efforts!
I have got TWO watches working and synchronised now:
Total expenditure < £14 including a new leather strap for my Rotary. TBH, there is some issue of a rubber waterproofing seal on the Rotary, but I shall remember to take it off before swimming in our lovely Portsmouth waters.
My current rant is WHY Albert Einstein became so obsessed with space and more importantly TIME?
Easy. He lived in Bern, Switzerland:
And every hour the uniquely Swiss Cuckoo Clock did its thing.
Making him think about Time as well as Space. Hope I explained that well. 😀
And Nay, my wee Scottish friend, Galu I am absolutely on a roll with my watchfixing efforts!
I have got TWO watches working and synchronised now:
Total expenditure < £14 including a new leather strap for my Rotary. TBH, there is some issue of a rubber waterproofing seal on the Rotary, but I shall remember to take it off before swimming in our lovely Portsmouth waters.
My current rant is WHY Albert Einstein became so obsessed with space and more importantly TIME?
Easy. He lived in Bern, Switzerland:
And every hour the uniquely Swiss Cuckoo Clock did its thing.
Making him think about Time as well as Space. Hope I explained that well. 😀
At 35:43 in his video, Jim Al-Khalili tells us he is in his home town of Portsmouth!
James Webb galaxy fly-thru
If this research has any validity, then BIG monkey wrench in current models
https://phys.org/news/2023-07-age-universe-billion-years-previously.html
dave
If this research has any validity, then BIG monkey wrench in current models
https://phys.org/news/2023-07-age-universe-billion-years-previously.html
dave
My local jeweler will sell you some cheap costume jewelry.My local jewellers will fit a new battery for a fiver.
My GMT receiving solar charging watch has had a broken band for 3 years.
I drove to 2 watch repair shops in Houston during the holidays with the watch. It was Monday before Christmas. Both the jewelers had gone home to where they came from. None changed their phone recording, or left a note on the locked door. One had an internet site with no info that they were going to close for the holidays.
My brother bought a band from Casio for me, since he bought me the watch and has another. The watch is still without the band installed. Last time I tried to change a watch band, I broke the expanding pin. Expanding pins come from online in a pricey watch repair kit. My near vision is not really up to this task now.
If I take my flip phone out of my pocket and unfold it, I can see the time. Outside display is destroyed. Highly useful (not) while I am riding the bicycle or shopping. All new ones come from a country I don't purchase from.
About Dr. Fred Hoyle. The school & county libraries in Houston in the sixties were extensively stocked with his SF novels. I read them. I never felt the need to buy one, as they were drek. Instead of his scientific musing books, the school had Sir Arthur Eddington. Fairly obsolete by 1965. Isaac Asimov was not obsolete, although his planetary musings have all been superceded by data from probes since.
That's a distance of 955 miles!
Surely there must be a watch repairer in Jeff?
P.S. Those expanding pins can be fiddly. I bought a new watch strap last week, which the jeweller kindly fitted for me!
P.P.S. Talking about Isaac Asimov, I pulled out my copy of his non-fiction book, The Subatomic Monster.
In the final chapter, he compresses the 15 billion year history of the Universe into a single year and marks off significant events along the length of the year using an ordinary arithmetical scale:
The Universe Year
The Big Bang - January 1, 12:00 AM
Subatomic particles form - January 1, 12:00:13 AM
Hydrogen & helium atoms form - January 1, 12:10 AM
Atoms form galaxy-sized gas clouds - January 3, 10 AM
The Milky Way galaxy forms - February 18
The solar system forms - September 9
Life begins on Earth - October 6
First land life on Earth - December 20
First hominids appear - December 31, 9.40 PM
History begins - December 31, 11:59:50 PM
The 955 miles to Houston were on Greyhound. A few extra since we went through Dallas, with a stop at Corsicana, site of a hole in the ground.
The 4 miles to the 2 watch shops were in my brother's bridge inspection pickup. He wasn't inspecting bridges that week.
I still have one Asimov novel left I haven't read. Foundation & Earth. Hooray, something new! Whizzed through Evan Thomas's Road to Surrender Tuesday night after it came in. Take that, reporters newsreaders historians & pacifists.
The 4 miles to the 2 watch shops were in my brother's bridge inspection pickup. He wasn't inspecting bridges that week.
I still have one Asimov novel left I haven't read. Foundation & Earth. Hooray, something new! Whizzed through Evan Thomas's Road to Surrender Tuesday night after it came in. Take that, reporters newsreaders historians & pacifists.
Deep space observations of the JWST are in strong tension with the Lambda-CDM cosmological model.
A model with covarying coupling constants (CCC) has been presented which is compliant with the JWST observations.
The CCC model may be regarded as an extension of the Lambda-CDM model with a dynamic cosmological constant.
https://academic.oup.com/mnras/adva...2/7221343?redirectedFrom=fulltext&login=false
I still have the complete Foundation series up in the loft - seven novels including Prelude to Foundation.
Great stuff. Technology changes, capabilities change, people & politics don't change. Reading those (and others) makes me glad I didn't try for an academic job.
The local archeologists dug up a grave from thousands of years ago. Pots of cosmetics, some beads. People were dressing up for funerals back then, too.
A good one :^)
I started reading Asimov in geade school… quite a library of youth sci-fi, then all thru high school, uni...
dave
;-)
I would nail a clock at home. So that this already remains "relatively" "unmoved" with respect to other "moving" clocks;-) You never know how Einstein theories still work;-)
I would nail a clock at home. So that this already remains "relatively" "unmoved" with respect to other "moving" clocks;-) You never know how Einstein theories still work;-)
One view is that he revisited Maxwell's equations. The current name of the whole game was this
https://en.wikipedia.org/wiki/Luminiferous_aether
The aether is sometimes described as a compressible medium to explain some of it's features but water may also be used to explain some aspects. It worked pretty well really.
An early proof that it was wrong was this
The negative outcome of the Michelson–Morley experiment (1887) suggested that the aether did not exist,
A rather crazy proof in some ways as it suggests you could pick it up and squeeze it. A physical substance. 😉 Wireless World long ago printed some letters arguing about it. One pushing that the aether is something that light travels in and not a physical substance. 😉 The media has existed for rather a long time so maybe that gave rise to a misleading distortion of the idea. It was pretty easy to demonstrate that light appeared to travelled in waves.
Anyway this was the theory at the time and being questioned.
Time as with most of his early thoughts came about by thought experiments. Doesn't it have to figure once some one decides that the speed of light is a constant the way he does? The thoughts are listed here
https://en.wikipedia.org/wiki/Einstein's_thought_experiments
🙁 Complete with probable distortions such as he couldn't have done that then as he hadn't studied Maxwell's equations. He could very probably read about them at variety of levels just as we can on his theories and many other areas. His actual job is mentioned as well. Fact or fiction concerning the area who knows. I love his comment about over education. It can be a disadvantage. It can also make it more difficult to shift views on many subjects, A problem he didn't have and he came up with something that in a fashion is compressible. Distortable is a better term and that may have figured in ideas about the aether which relate to electromagnetic radiation not just light. At the radio end of things wavelength can be physically measured. No luck finding a link on that via google other than a brief mention.
In a laboratory setting, Lecher lines can be used to directly measure the wavelength on a transmission line made of parallel wires, the frequency can then be calculated. A similar technique is to use a slotted waveguide or slotted coaxial line to directly measure the wavelength. These devices consist of a probe introduced into the line through a longitudinal slot so that the probe is free to travel up and down the line. Slotted lines are primarily intended for measurement of the voltage standing wave ratio on the line. However, provided a standing wave is present, they may also be used to measure the distance between the nodes, which is equal to half the wavelength. The precision of this method is limited by the determination of the nodal locations.
The voltage signals show a sine profile.
Some of the links in the thought experiment on previous work make an interesting read
The necessity to deal with time can follow alone the equation of gravity and acceleration. The misunderstanding of physical tact as all-embracing "time billowing" is everyday imagination, unscientific. The physical quantity distance, also in different directions, as all-embracing "space-billowing" too;-)
"Negative experiments", ether, say nothing. This is because there may be unsuitable experiments or even incorrect interpretations. Often the technical development is a prerequisite for appropriate experiments. Or even that there is no interest, for whatever reason, intentional or unintentional. Some interpret ether into Michelson-Morley-experiments, others don't. What makes it into popular science is also a question of interests, fashion, vanity, whatever.
For a "wave property" of light, and for "magnetism", it can need a "medium". The light dualism, thus also the wave character of light, is postulated also by the popular science;-)
"Negative experiments", ether, say nothing. This is because there may be unsuitable experiments or even incorrect interpretations. Often the technical development is a prerequisite for appropriate experiments. Or even that there is no interest, for whatever reason, intentional or unintentional. Some interpret ether into Michelson-Morley-experiments, others don't. What makes it into popular science is also a question of interests, fashion, vanity, whatever.
For a "wave property" of light, and for "magnetism", it can need a "medium". The light dualism, thus also the wave character of light, is postulated also by the popular science;-)