Sailing across the Local Universe with ULLYSES
2nd September
http://www.stsci.edu/public-lectures
Added 15/9/2020
This lecture is really interesting and especially if you are studying science, even at GSCE level the explanation(s) around the electromagnetic spectrum, absorption and emission lines are really good and the lecture is a good way to see the context on how this is used.
You can find more public lectures here
Building Black Holes in a Lab
This is a really interesting video from PBS Space Time.
So if Black holes leak away mass via Hawking Radiation, does this mean that as white holes also exist, and expel matter rather than suck matter in. then are they also contributing to a mass reduction. This probably assumes the theory that there is a white hole at the other end of the Black hole, otherwise it raises questions as to where does all that matter go?
Further Study
Coursera offer several Physics Courses
References
Further discussion
A thread asking about black hole mass loss via white holes can be found on Science Forums here if anyone would like to contribute to the conversation.
Hubble – Eye in the Sky – Mini Series
Yesterday (15/7/2020) NASA started a 3 part mini series on the Hubble space telescope.
Schedule as follows
Should make an interesting series.
#space,#nasa,#telescope,hubble,#miniseries,#series,#science,#astronomy
In the night sky : Orion Completed
I have finally, after months of going back and forth to this, partly due to other study and things to do. Completed the 24 hour OU / OpenLearn Course. I was just doing this casually anyway.
Note: This is a Level 1 Open University course.
After studying this course, you should be able to:
* Understand facts, concepts, principles, theories, classifications and language used in astronomy * Understand the range of sizes, distances and motions of objects in the night sky * Understand the structure, evolution and the main processes operating in stars * Understand the properties of planets in our Solar System and exoplanetary systems * Understand the history of the universe.
Really interesting course, lots to think about and learn just from doing some of the research for the questions posed during the course.
Astronomy uses the greek alphabet for star names for example so this post may help.
#course #openlearn #openuniversity #science #space #astronomy #cosmology #physics #astrophysics #chemistry #biology #OU #greek
#KSTARS – ASTRONOMY PACKAGE
KSTARS is a Linux based astronomy package. For a free software package it has a lot of features and downloadable catalogues of stellar objects.
When you first load up the package you may want to view the constellation lines. I worked out how to do this, but am including some info below to help users change the line colour from the default light grey as it may be easier for people to see the lines.
If you click on Settings (menu) —> configure —> guides
You should get the following
I have checked the boxes to constellation:-
If you then click on the colours tab at the side
I have set the colour to yellow. This does stand out, probably a little too much. However you can set it to the colour of your choosing or leave as the default grey.
The end result of this is (download):
Hope this helps
#software, #astronomy, #science, #kde, #linux, #freesoftware, #setup, #configuration, #constellation, #linecolor, #boundaries, #names.
You can find me on Friendica at [email protected]
I have just completed another OU / OpenLearn course, this time on The Evolving Universe. Despite its rather complex subject matter it was very interesting and expanded a little further on the 'How the universe works' course I undertook a few years ago.
The course looked at the early universe, the big bang, how particles, energy, time and temperature all changed over time and how all these are inter-related. How the matter we know today formed and why the universe is mostly matter and not antimatter. The fact there was more matter and what would have happened if the amount of antimatter and matter had been equal. Plus other interesting topics.
How sub-atomic particles such as Bosons, Leptons, Quarks etc interact. How research finds new particles and the huge energy levels required for this to take place.
This is a level 1 introductory course, and like the more formal course mentioned. The course also asks other questions which gets the reader thinking about different scenarios that could have occurred.
#OpenUniversity, #OU, #OpenLearn, #science, #EvolvingUniverse, #Space, #astronomy, #astrophysics,
You can find me on Friendica at [email protected]
