So did I as a boy, with my Charles Frank of Glasgow Junior Astronomical Telescope.
P.S. I lost the associated book!
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Further investigations of this Solar Moon Eclipse business to report. It's all quite predictable, it seems:
https://en.wikipedia.org/wiki/Orbit_of_the_Moon
The Moon is half a degree diameter in the sky, and goes round every 27.322 days. It moves a half degree every hour, so two hours duration was about right. I will leave the precise calculations for the interested student.
But the surprising prediction is that we will now get a total Lunar Eclipse in about two weeks over the Pacific. Some years you get 4 eclipses, some can be 5 or 6!
https://www.timeanddate.com/eclipse/2022
I was also interested in what World Class Horoscope expert, Mystic Meg of "The Sun" newspaper made of it all:
https://www.thesun.co.uk/fabulous/h...y-daily-star-sign-mystic-meg-october-25-2022/
Always the first thing I study in the morning before moving onto the Horse-Racing section. She was terribly excited about it.
Interestingly, there is a horse running at The Curragh today in the 15.25 called "New Moon Rising". Spooky, eh? 😀
https://en.wikipedia.org/wiki/Orbit_of_the_Moon
The Moon is half a degree diameter in the sky, and goes round every 27.322 days. It moves a half degree every hour, so two hours duration was about right. I will leave the precise calculations for the interested student.
But the surprising prediction is that we will now get a total Lunar Eclipse in about two weeks over the Pacific. Some years you get 4 eclipses, some can be 5 or 6!
https://www.timeanddate.com/eclipse/2022
I was also interested in what World Class Horoscope expert, Mystic Meg of "The Sun" newspaper made of it all:
https://www.thesun.co.uk/fabulous/h...y-daily-star-sign-mystic-meg-october-25-2022/
Always the first thing I study in the morning before moving onto the Horse-Racing section. She was terribly excited about it.
Interestingly, there is a horse running at The Curragh today in the 15.25 called "New Moon Rising". Spooky, eh? 😀
Dr becky seem to hate time travel. A bit predictable she said. Anybody who feel the same way. I recommend watching steingate anime. The time travel done right. Believe me the ending will blow you away. I want to add it's a bit high level stuff so don't mind it if you don't get it.
To be exact, Steins;Gate.
"With its sci-fi premise, Steins;Gate is easy to dismiss as a complete fiction, yet this series is meticulously well-researched."
Details for interested parties: https://en.wikipedia.org/wiki/Steins;Gate_(TV_series)
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Time Travel is junk science IMO. It's not going to happen! Never mind misconceptions of spooky action at a distance exceeding the speed of light! 🙁
I have been finishing up my investigations into Kepler's Third Law of planetary motion. I was prompted by seeing bright blue Jupiter and red Mars last night around 11PM.
https://en.wikipedia.org/wiki/Kepler's_laws_of_planetary_motion
The three laws state that:
Quite easy to cube 5.2 for Jupiter, then take the square root, getting 11.9 Years sidereal motion through the sky. Same goes for Mars at 1.88 years. Sidereal motion is judged against the fixed stars.
Synodic motion complicates things by taking the Earth's motion round the sun into account, and Venus and Mars are heavily affected by this.
I don't think Kepler's equation (Which is about a central force acting on a single body) works so well where the masses of the Sun and second body are more similar:
For that you need the two body solutions, which Newton later refined.
And doubtless gets worse with the tiny correction for General Relativity which particularly affects Mercury.
I enjoyed brushing up on that. The modern word is "Astrodynamics", which sounds an exciting thing.
I have been finishing up my investigations into Kepler's Third Law of planetary motion. I was prompted by seeing bright blue Jupiter and red Mars last night around 11PM.
https://en.wikipedia.org/wiki/Kepler's_laws_of_planetary_motion
The three laws state that:
- The orbit of a planet is an ellipse with the Sun at one of the two foci.
- A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.
- The square of a planet's orbital period is proportional to the cube of the length of the semi-major axis of its orbit.
Quite easy to cube 5.2 for Jupiter, then take the square root, getting 11.9 Years sidereal motion through the sky. Same goes for Mars at 1.88 years. Sidereal motion is judged against the fixed stars.
Synodic motion complicates things by taking the Earth's motion round the sun into account, and Venus and Mars are heavily affected by this.
I don't think Kepler's equation (Which is about a central force acting on a single body) works so well where the masses of the Sun and second body are more similar:
For that you need the two body solutions, which Newton later refined.
And doubtless gets worse with the tiny correction for General Relativity which particularly affects Mercury.
I enjoyed brushing up on that. The modern word is "Astrodynamics", which sounds an exciting thing.
We are all micro-organisms in the universe of things.
Picture a huge, emense fish aquarium as being the universe, and we're all fish floating around in it.
Picture a huge, emense fish aquarium as being the universe, and we're all fish floating around in it.
Interestingly, Johannes Kepler based his first two laws of planetary motion on data that Tycho Brahe had gathered on the motion of the planet Mars.
The relationship between mathematician Kepler and astronomer Brahe is examined in a video (transcript included) here:
https://solarsystem.nasa.gov/resources/310/orbits-and-keplers-laws/
Pertinent to an audio forum, Kepler discovered the third law several years later while working on musical harmony applied to the motion of planets. He believed that the heavens incorporated the same harmony that made fine musical chords so appealing to human ears.
Astrodynamics or Orbital Mechanics is the study of the motion of rockets, missiles and space vehicles.
Celestial Mechanics, of which Astrodynamics is a distinct branch, focuses more broadly on the motion of planets, moons and comets.
In Astrodynamics, when a rocket engine thrust is present, Newton's second law of motion applies, and Kepler's laws are temporarily invalidated.
I believe that I'm in heaven when I'm playing some Patsy Cline songs.
Jeez!.... that girl had a pair of lungs!
Meh
You're very own Kezia Gill is absolutely astonishing. Literally as good as it gets. I discovered her watching a youtube bit with Brendan Kavanagh, also extremely talented.
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Can I cast a stern warning in here?
We are serious Scientists! I have little time for Musical Opinion.
I am in the Business of trying to solve the Mysteries of the Universe:
https://bigthink.com/starts-with-a-...arrassed-to-ask-about-the-expanding-universe/
To this end, I must tell you where we are so far:
Terrific Mess, IMO.
Let's start with the J/Psi particle:
Little did I suspect in the Physics Lab of 1974 that this little horror would cast a very deep shadow over my endeavours in latter days:
https://www.quantamagazine.org/insi...e-20221019?utm_source=pocket_discover_science
I was fairly comfortable with Quarks and the Proton:
Imagine my Horror in discovering that the First Generation Quarks might share a relationship with the second generation J/Psi!
It gets worse. We have current theories of Pentaquarks:
I can only tell it like it is.
Best Regards from Particle Physicist, Steve in Portsmouth, UK.
We are serious Scientists! I have little time for Musical Opinion.
I am in the Business of trying to solve the Mysteries of the Universe:
https://bigthink.com/starts-with-a-...arrassed-to-ask-about-the-expanding-universe/
To this end, I must tell you where we are so far:
Terrific Mess, IMO.
Let's start with the J/Psi particle:
Little did I suspect in the Physics Lab of 1974 that this little horror would cast a very deep shadow over my endeavours in latter days:
https://www.quantamagazine.org/insi...e-20221019?utm_source=pocket_discover_science
I was fairly comfortable with Quarks and the Proton:
Imagine my Horror in discovering that the First Generation Quarks might share a relationship with the second generation J/Psi!
It gets worse. We have current theories of Pentaquarks:
I can only tell it like it is.
Best Regards from Particle Physicist, Steve in Portsmouth, UK.
All fine and good there, Stevie boy.
However, do me some research om WHY the common toilet flush makes the swirling water go down in a certain direction.
The aliens from Planet Zackbar are asking for this queer phenomenon.
If you care to research this thread, WOT, you'll find that we have already covered the Coriolis effect, e.g., on Page 288/289.
"The Coriolis effect due to the Earth's rotation bends the direction of surface ocean currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere."
P.S. It’s a myth that the Coriolis effect determines the direction a toilet flushes.
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