Ultrafast 3d camera
This looks pretty impressive Physicsworld article on new ultra fast camera, 100 billion frames per second in 3d.
#physicsworld,#camera,3d,#100billionfps,#photography, #research,#science,#physics
Ultrafast 3d camera
This looks pretty impressive Physicsworld article on new ultra fast camera, 100 billion frames per second in 3d.
#physicsworld,#camera,3d,#100billionfps,#photography, #research,#science,#physics
Particle Physics course follow up
I am just following up on my OpenLearn particle phyiscs course review follow up.
As part of this I had to work out the charge spectrum on groups of 3 quarks.
This short article explains (or tries to) how to do this. Firstly thank to the course creators, Open Learn and the Open University without whom the course would not have been possible. Thank you also to users on the physics irc channel who gave me some help with doing this.
So if we take a Proton as an example, this has 3 quarks
uud
so firstly I had to write down all the possible combinations
uuu uud udu udd duu dud ddu ddd
There are repeated combiations here so by removing these we get
uuu ddd duu ddu
From here we then need to list the charges associated with each, and calculate totals
uud = 2/3 + 2/3 + 2/3 = +2e ddd = -1/3 + -1/3 + -1/3 = -1e duu = -1/3 + 2/3 + 2/3 = 1e ddu = -1/3 + -1/3 + 2/3 = 0
Now list the totals
+2e -1e 1e 0
if we put them in some sort of order
-1e 0 1e +2e
We get the charge spectrum
The activity had a sort of frurt machine that would come up with combinations of all the 6 quarks
u d s c t b
Details of where they fit in to the standard model and associated charges can be found on the standard model table.
This may sound complex, which is perfectly fine, once it was explained to be, and someone worked through it, it was much clearer, I decided to write it all down, and then type up here, as this helps to reinforce learning.
Given there are 6 quarks, the number of different combinations of 3 quarks is huge. Then think there would be anti baryons, so the same combination but with antiquarks
Mesons have combinations of 1 quark and 1 antiquark.
The Dawn of Gravitational Wave Astronomy
So on to another high end physics lecture
This is from the Institute of Physics
Enigmatic fast radio burst pinned on magnetised dead star
This is an interesting development, astronomers have found something they have been spending years searching for. Not sure where these stars appear on the The Hertzsprung-Russell diagram.
https://www.bbc.co.uk/news/science-environment-54815687
The paper for this can be found on Physics World. Reported on IOPScience on 4th November 2020.
Currently discussing on a OU Science forum.
#bbc,#news,#science,#fsb,#space,#astronomy,#physics,#astrophysics.
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.
Physics news 4th August 2020
I asked about this on Twitter earlier. More to ask if I was right in thinking a dimuon was two muons together.
The full article can be found below.
Lots of interesting things happening at FermiLab then.
“US CMS is very proud to acknowledge the significant impact made by its members in deploying innovative analysis techniques, including cutting-edge AI methods, which were critical in establishing the evidence for Higgs boson decays into a muon and antimuon pair,”
It may be an idea to have an understanding, or a copy of the standard model of particle physics to hand.
This is also being discussed on the qoto discourse instance. Where there is also an updated standard model graphic.
You may also find Science Forums a good place to discuss.
This has also prompted me to try and figure out how to typeset the basic equation in LaTeX.
\$$H\longrightarrow \mu^{–} + \overline{\mu^{+}} $
So to quote the $\textit{news.fnal.gov}$ website
Related Articles
#physics,#fermilab,#muon,#antimuon,#pair,#particles, #antimatter,#higgs,#boson,#decay,#science,#latex,#mu
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