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Thank you so much for these videos!

Wsg ma

Hi, good day! Could you go through the demo of the student's guide? At least for the 1st part related to UBV Filters

Dark matter is dilated mass. Mass that is dilated is smeared through spacetime relative to an outside observer. It's the phenomenon our high school teachers were talking about when they said "mass becomes infinite at the speed of light". A graph illustrates its squared nature, dilation increases at an exponential rate the closer you get to the speed of light. A time dilation graph illustrates the same phenomenon, it's not just time that gets dilated. Dilation occurs wherever there is an astronomical quantity of mass because high mass means high momentum. This includes the centers of very high mass stars and the overwhelming majority of galaxy centers. The mass at the center of our own galaxy is dilated. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. In other words that mass is all around us. Dilation does not occur in galaxies with low mass centers because they do not have enough mass to achieve relativistic velocities. It has been confirmed in 6 very low mass galaxies including NGC 1052-DF2 and DF4 to have no dark matter. In other words they have normal rotation rates. All planets and all binary stars have normal rotation rates for the same reason.

How about a video exposing the myth that light travels at a constant speed? Light was observed to be traveling at slower speeds compared to previous measurements. Science started using atomic clocks to measure the speed of light. BUT!!! Atomic clocks use the speed of light for measuring time.* If the speed of light slows, then the atomic clock used to measure the speed of light also slows, so they remain in sync and constant compared to each other. Therefore, an atomic clock can not be used to measure the speed of light. Prior to the use of atomic clocks, science knew the the speed of light was not constant. *National Institute of Standards and Technology: Scientists measure the frequency of energy pulses affecting an atom's nucleus by counting the waves in the UV signal. Wavelengths that can induce a nucleus transition oscillate at higher frequencies, enabling more precise time measurements, the researchers say.

eclipse

Very good. There was a movie where the student didn't take number accuracy account, and he was failed by the Teacher with a sad result sorry don't remember the movie. Thank you so much.

Do you know of a resource for those Chinese groupings/constellations? I'd love to learn more about them.

This is a great series. Is there any reference or resource that describes what constellations other cultures came up with?

With the one saying that if a astronaut jumped on the moon they would float in space could it be that the astronauts that went on the moon stayed and where able to move because the weight of there gear or is there a different reason

I need to see this with the moon actually rotating on its axis as it rotates earth, as I still can’t visualise how something can spin on its axis and only show one side at all times it doesn’t make sense to my tiny brain 😂

How to find absolute magnitude without knowing the distance?

Magnificent 🎉

Amazing, breathtaking, celestial!!😊

So glad someone has covered this! I learned a lot!

Please correct me if I am wrong: I think we can hear the sound of explosion on the moon if we are on the moon as our body will be the medium those waves???

Is the ppt presentation this whole course available for free?

wonderful! has been so nice going through these videos and the course! Keep doing what you're doing I've learned a lot and had fun listening!

How was this ever a misconception. The fuel in space has always been to maneuver around in space. Even the slightest change in direction requires fuel or energy. Fuel for the energy required to move the matter. What was the misconception? That once a rocket is in space it no longer needs fuel? It has to return, to do that requires fuel.

Thank you for these videos!

Excellent!

Great video, thanks for sharing!

It's too pixelated to read the names when zooming in. Could you point out where Earth is in the zoo please?

Is there anybody out there?

Super excited for more Misconceptions in Astronomy! :)

Thanks, love the way you made these short video’s. The summaries are great !

Thank you. Exactly what I was looking for.

I'd like to disagree. The "apparent" rotation of the moon could simply be due to it orbiting the Earth. Imagine a Moon/Earth model using a soccer ball and a tennis ball glued to a rod connecting the two spheres (to simulate tidal locking). If you move the model to simulate the Moon's orbit, the "apparent" revolution of the moon does indeed take place, but we know the Moon (tennis ball) cannot rotate as we have glued it to the rod. So how does science decide that the Moon revolves when the same observations would be made if it didn't?

Great video. Thanks for sharing. When I was a kid in the early 60s my teachers and elders used to say polaris was the brightest star. But, anyone who looks can see that it's not. Even then I knew this was false. How could anyone born in the 20s and 30s have been so ignorant of that?

Thanks for these videos. I am currently taking PHYS 224 Astronomy at ERAU and simultaneously going thru your OpenStax course to augment my reading of the 2e textbook. I am enjoying your free class. Thank you.

If the Sun orbited the Earth instead of the Earth spinning, then it must move pretty fast, actually 365 times faster than the Earth moves around the Sun. How could anyone ever believe that?

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Maria Cunita - this form only. She always signs her correspondence in that way. Also, Her father used male-form Cuniti when signature some of his work. If you want to use the Silesian [as she described herself: 'Biczni Silesiorum'] system, then her surname can be written as Maria Kōnić. Thank you for showing great and lesser known people of science! 🙏

Thank you so much sir 🙏🙏🙏❤ it's really good 💯.

Purdy😁😍

Thank you so much for all of the hard work and effort you put into these lectures. They were an amazing help, and I have enjoyed every moment. It followed along easily with my Astronomy 101 class, and you explained everything so that I could easily understand it. Again, Thank you!

Well if this is true, then the Babylonians which were here before the jews, came up with the Jew's current calendar and it wasn't given to them by Yahweh.. More than half of the months are the same name as the Babylonians. So then, a day starting at sunset and a new month starting the sightings of the crescent is Babylonian and not from the god of the bible..

Have a problem here. I know and why the Egyptians broke the year, be it solar or lunar, into 3, four months section, but I thought the Babylonian use a 3 month to the season cycle. What did the Babylonians base their seasons on? What triggered a season change?

How do I make a perfect binary system where two massive objects orbit each other in such a way that their orbits perfectly overlap

not many native english speakers discuss this so thank you! any ideas on why the cardinal directions are reversed from western astronomy (e.g. the Azure Dragon of the East is aligned with Virgo, Libra, Scorpio which are associated with autumn and the west)

Lol. Space is a LIE!

I can't believe i'm studying this for free

tysm for this !!

thanks

Nice video!!!

Very interesting would love to know more

Thank you very informative

I think I saw it today March 18 2024 with my dad

it's helped me to update the basic of this . thanks 💖💖💖

(Q) As Phobos orbits Mars ever so closely... does that mean one day, the Martian tidal forces will become so great, that Phobos will break up into Martian debris rings?🪐🤔