Hunting the Stellar Undead
The next stsci lecture is Hunting the Stellar Undead and will take place on Tuesday 3rd December 2024.
Please see the lecture page for more information.
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Black Hole Tears Star to Shreds, Unleashing Cosmic Shockwaves
Black Hole Tears Star to Shreds, Unleashing Cosmic Shockwaves
This is interesting, I will add a link to NICER (see article) to the links page.
Black holes seem really complex, and there is probably much more to learn. It is also worth watching the two videos as a further explainer to the research and the resulting paper.
So this is looking at a black hole, and how it is interacting with a local star trapped within its gravitational pull, As the star is pulled apart, some of the matter becomes a disk around the black hole, however this matter is then also interacting with another star.
If I understand the paper or at least article, this event links tidal disruption events * and quasi-periodic eruptions, helping astronomers understand black hole environments and shape future research
- The above link is to Wikipedia, as this is NOT an academic source of information, please use a different source, link is for reference only
On an unrelated note, according to the Solar System series by Professor Brian COX, Rings have formed around planets when an object such as an asteroid gets caught in the gravitational pull of the planet, Moons are also objects that have been caught up.
I am not sure if the two phenomenons are related in that stars being ripped apart by a black hole are a similar event, just on a much larger scale.
According to MIT there have been other similar events detailed here
Links
Tags
#Science,#Astronomy.#Physics,#AstroPhysics,#BlackHole
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Old LibreOffice versions
From time to time there is a requirement to download older versions of LibreOffice, for example it could be as part of a retro computing project where an older Windows OS is being used.
The main LibreOffice archive is at
So for example I have downloaded version 5.4.7.2, which can be found at https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2
There is a really basic bash script to download which I have modified so it works better and also has some extra wget commands in to download additional resources.
mkdir LibreOffice_All_Platforms
cd LibreOffice_All_Platforms
# Array of download URLs for LibreOffice 5.4.7.2 installers
# Array of download URLs for LibreOffice 5.4.7.2 full package (all files)
urls=(
# Windows Installers
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86.msi"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64.msi"
# Help packs for 32 and 64 bit windows
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-GB.msi"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-GB.msi.asc"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64_helppack_en-GB.msi"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64_helppack_en-GB.msi.asc"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-GB.msi"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-US.msi.asc"
# macOS Installer
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/mac/x86_64/LibreOffice_5.4.7.2_MacOS_x86-64.dmg"
# Linux DEB Packages
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/deb/x86/LibreOffice_5.4.7.2_Linux_x86_deb.tar.gz"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/deb/x86_64/LibreOffice_5.4.7.2_Linux_x86-64_deb.tar.gz"
# Linux RPM Packages
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/rpm/x86/LibreOffice_5.4.7.2_Linux_x86_rpm.tar.gz"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/rpm/x86_64/LibreOffice_5.4.7.2_Linux_x86-64_rpm.tar.gz"
# Language Packs for Windows
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_langpack.msi"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64_langpack.msi"
# Language Packs for macOS
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/mac/x86_64/LibreOffice_5.4.7.2_MacOS_x86-64_langpack.dmg"
# Language Packs for Linux DEB
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/deb/x86/LibreOffice_5.4.7.2_Linux_x86_deb_langpack.tar.gz"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/deb/x86_64/LibreOffice_5.4.7.2_Linux_x86-64_deb_langpack.tar.gz"
# Language Packs for Linux RPM
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/rpm/x86/LibreOffice_5.4.7.2_Linux_x86_rpm_langpack.tar.gz"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/rpm/x86_64/LibreOffice_5.4.7.2_Linux_x86-64_rpm_langpack.tar.gz"
# SDK (Software Development Kit)
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/deb/x86_64/LibreOffice_5.4.7.2_Linux_x86-64_deb_sdk.tar.gz"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/rpm/x86_64/LibreOffice_5.4.7.2_Linux_x86-64_rpm_sdk.tar.gz"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_sdk.msi"
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64_sdk.msi"
# Source Files
"https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/src/libreoffice-5.4.7.2.tar.xz"
)
# Loop to download each file
for url in "${urls[@]}"; do
wget "$url"
done
# extra to be added to the above script
The following additional commands to download helppacks are:
wget -c https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-GB.msi
wget -c https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-GB.msi.asc
wget -c https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64_helppack_en-GB.msi
wget -c https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86_64/LibreOffice_5.4.7.2_Win_x64_helppack_en-GB.msi.asc
wget -c https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-GB.msi
wget -c https://downloadarchive.documentfoundation.org/libreoffice/old/5.4.7.2/win/x86/LibreOffice_5.4.7.2_Win_x86_helppack_en-US.msi.asc
These could be integrated in to the above script.
Powershell
If you are using Windows, then you may want to use powershell for this. You will need to set up both an array then use a loop to read each item in the array and pass this to wget.
Maybe a good starting point.
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Tinkerers Meeting 7
The next meeting of the Tor bay Tinkerers group will be on Saturday 23rd November 2024. Please see their website for more details and a write-up of the May Meeting.
We meet at:-
Paignton Library, Room 12 11am to 13:00
Possible topics
We will carry on looking at projects and get feed back from Vance's visit to teh UKMars Robot contest.
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Celebrating disabled scientists
Another infographic from Compound Interest
Other links
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#Science,#Scientists,#Disabled
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Aurora Colours
Another infographic from Compound Interest
Other links
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Prof Brian Cox – Solar System
The fantastic 5 part series on the Solar System, presented by Professor Brian Cox is now up on BBC iPlayer if you would like to catch up
Series 1: 1. Volcano Worlds Professor Brian Cox explores planets and moons erupting with fire and ice. 59 mins Series 1: 2. Dark Worlds Professor Brian Cox goes on a journey to the least explored regions of the solar system. 59 mins Series 1: 3. Storm Worlds Professor Brian Cox explores the wildest weather across the solar system. 59 mins Series 1: 4. Ice Worlds Professor Brian Cox goes on a journey to the icy, frozen worlds of the solar system. 59 mins Series 1: 5. Strange Worlds
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The Mole
As part of chemistry week 2024, I am sharing a few infographics from the Compound Interest website
Today we look at The mole, which is how much matter makes up the formula weight, so for example 12g of Carbon = 1 mole of Carbon as the atomic mass of Carbon is 12. Carbon is also used as the baseline for this.
Other links
Tags
#Science,#Chemistry,#Science,#TheMole
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Science Evidence
As part of chemistry week 2024, I am sharing a few infographics from the Compound Interest website
Today we look at Evidence in Science. This is more general to science, but it is important to understand the science processes in research.
Other links
Tags
#Science,#Chemistry,#Science,#Evidence
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Black chemists you should know about
Todays post looks at how Chemistry has had important contributions from Black scientists, C&EN has an article looking at six black chemists you should know about
Clearly there are far more than this, you may have your own list.
Other links
TAGS
#Chemistry,#Science,#Black,#Chemists
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