Oh Dear. TNT is hurt because I implied he is no Einstein or Euler. Galu is quoting me and changing the subject again. Let's be honest, this thread could do with some improvement.,,
It's like the wretched multi-way forum, forever stuck at Noobie or Windbag level. All the good people have deserted it. How it is.
Don't get me onto the extremely uninspiring Lounge in general... it is broken and formulaic and dull, IMO.
You see, to make progress, a critical faculty is required. And a certain enjoyment, understanding, and though people are naturally lazy, some hard work.
One of my many diverse hobbies, in which I try to make the World a better place is gardening:
Surely more practical than Penrose tilings? Plants need light, water and nutrients, which many people don't understand.
Also careful selection of plants, here the ever-ready Geraniums, Petunias and Lobelia which will go all summer.
Incredibly, someone in this house bought a conifer as a house plant. It was dying and they chucked it out into my patch. It is now thriving outdoors in a bigger pot.
I also like fruit trees like plums and apples and raspberries to improve the urban wilderness. The strawberries are always a magnet for passing kids, and they can have some with pleasure.
They learn they don't grow in shops. 🤣
I find Physics in general absolutely fascinating. Astronomy too, being the start point for most mathematics and science.
Professor Shankar of Yale is a great hero of mine. This is laugh out loud funny and profound too:
Quantum Mechanics for a mixed audience. A good selection of his wisdom here:
https://campuspress.yale.edu/rshankar/
I am working through some of his lectures just to remind myself of what Physics is at top graduate level. This is a treat.
Here's some fascinating maths about the difference between Algebraic numbers and Transcendental ones beautifully explained.
You see, what is weird is that Algebra, which is what we use all the time, is only a tiny part of mathematical reality. The Transcendentals are infinitely more common.
I make no claims to be particularly good at any of these things, distinctly second rate really, but hope to be ADEQUATE. Which is all most of us can do.
It's like the wretched multi-way forum, forever stuck at Noobie or Windbag level. All the good people have deserted it. How it is.
Don't get me onto the extremely uninspiring Lounge in general... it is broken and formulaic and dull, IMO.
You see, to make progress, a critical faculty is required. And a certain enjoyment, understanding, and though people are naturally lazy, some hard work.
One of my many diverse hobbies, in which I try to make the World a better place is gardening:
Surely more practical than Penrose tilings? Plants need light, water and nutrients, which many people don't understand.
Also careful selection of plants, here the ever-ready Geraniums, Petunias and Lobelia which will go all summer.
Incredibly, someone in this house bought a conifer as a house plant. It was dying and they chucked it out into my patch. It is now thriving outdoors in a bigger pot.
I also like fruit trees like plums and apples and raspberries to improve the urban wilderness. The strawberries are always a magnet for passing kids, and they can have some with pleasure.
They learn they don't grow in shops. 🤣
I find Physics in general absolutely fascinating. Astronomy too, being the start point for most mathematics and science.
Professor Shankar of Yale is a great hero of mine. This is laugh out loud funny and profound too:
Quantum Mechanics for a mixed audience. A good selection of his wisdom here:
https://campuspress.yale.edu/rshankar/
I am working through some of his lectures just to remind myself of what Physics is at top graduate level. This is a treat.
Here's some fascinating maths about the difference between Algebraic numbers and Transcendental ones beautifully explained.
You see, what is weird is that Algebra, which is what we use all the time, is only a tiny part of mathematical reality. The Transcendentals are infinitely more common.
I make no claims to be particularly good at any of these things, distinctly second rate really, but hope to be ADEQUATE. Which is all most of us can do.
I can't be hurt if it's true - which it is - I'm just "jiving"... sorry for that.
Now gardening, that's serious - and always fair and sincere.
//
Let's look at the contents of your last post:
- Quality of forums
- Gardening
- Quantum mechanics
- Algebraic & transcendental numbers
I'm happy to report that I start a volunteer job at the Einstein Telescope Education Center near my home town in the south of the Netherlands.
Our local museum has set up an Einstein Telescope Education Center where I will do tours and lectures.
Check out https://www.linkedin.com/feed/update/urn:li:activity:7333860275172913155/.
Exciting! Maybe I will be the first to know where gravity comes from in a decade or so 😎
Jan
Our local museum has set up an Einstein Telescope Education Center where I will do tours and lectures.
Check out https://www.linkedin.com/feed/update/urn:li:activity:7333860275172913155/.
Exciting! Maybe I will be the first to know where gravity comes from in a decade or so 😎
Jan
I read that construction of the Einstein Telescope (ET) is due to begin 2027/28 with observational activity commencing 2035.
So, it looks like you have a few years of happiness and excitement ahead, Jan!
The ET will be able to observe a volume of the universe 1,000 times larger than that which can be studied with current gravitational wave detectors.
The design would appear to be that of a triangular-shaped interferometer built on a single site.
So, it looks like you have a few years of happiness and excitement ahead, Jan!
The ET will be able to observe a volume of the universe 1,000 times larger than that which can be studied with current gravitational wave detectors.
The design would appear to be that of a triangular-shaped interferometer built on a single site.
That's interesting, I don't recall reading of the Einstein Telescope, nor that there was going to be a third gravitational telescope on Earth. I'd heard that LISA, the one in outer space, had been finally approved in the last year or two, after being proposed but not funded about ten years earlier. It'll also be a few years before going online.
https://en.wikipedia.org/wiki/Laser_Interferometer_Space_Antenna
Ahh ok, so the two are complementary, with ET smack in the middle of the audio frequency band!
I wonder what the budget for LISA would be. Maybe not even very much.
Jan
I wonder what the budget for LISA would be. Maybe not even very much.
Jan
Yes, the two types of observatories will complement one another, similar to how radio, optical, x-ray, etc. observatories complement one another.
In other words, ET and LISA will be used to observe different phenomena.
For example, LISA will be able to observe stellar mass black holes inspiralling into supermassive black holes. Such events produce gravitational waves that have wavelengths larger than Earth itself, making them unobservable by ground based detectors. Scientists hope that LISA may answer questions like, "How did the massive black holes at the centres of galaxies form and grow?".
Regarding the budget for LISA, I have not yet uncovered any figures, but the costs will be shared by the European Space Agency (ESA), NASA and a collection of European National space agencies.
For example, a team from Glasgow University has developed a core element of LISA's laser measurement system with funding from the UK Space Agency, which has also funded the development of a LISA Data Centre in the UK. Each of the three spacecraft will include two optical benches built in the lab at the UK Astronomy Technology Centre in Edinburgh.
LISA FAQ: https://lisa.nasa.gov/faq.html
In other words, ET and LISA will be used to observe different phenomena.
For example, LISA will be able to observe stellar mass black holes inspiralling into supermassive black holes. Such events produce gravitational waves that have wavelengths larger than Earth itself, making them unobservable by ground based detectors. Scientists hope that LISA may answer questions like, "How did the massive black holes at the centres of galaxies form and grow?".
Regarding the budget for LISA, I have not yet uncovered any figures, but the costs will be shared by the European Space Agency (ESA), NASA and a collection of European National space agencies.
For example, a team from Glasgow University has developed a core element of LISA's laser measurement system with funding from the UK Space Agency, which has also funded the development of a LISA Data Centre in the UK. Each of the three spacecraft will include two optical benches built in the lab at the UK Astronomy Technology Centre in Edinburgh.
LISA FAQ: https://lisa.nasa.gov/faq.html