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Living with COVID-19: When a pandemic becomes endemic

A talk from the Royal society, presented by Professor Bryan Cox on how Covid19 will become endemic.

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#Talk,#Covid19,#Medical,#Endemic,#Pandemic,#ProfessorBryanCox, #RoyalSociety,#Lecture,#Biology,#Virus,

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Public Money, Public Code

This is a campaign, by the fsfe. Any code that is developed, with public funds, should be released under a license that makes it available to everyone.

Links

VIDEO

This is the talk from LibrePlanet on PMPC

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Fosdem talk: Radio Astronomy

I attended a few of the talks at FOSDEM 2021 [1]. The talk on Virgo: A Versatile Spectrometer for Radio Astronomy [2] was interesting, as I am developing more of an interest in space science.

I am linking to the talk information page and the recordings of the talks below.

Worth watching, as it is interesting what is currently being undertaken.

REFERENCES

  1. Fosdem
    1. Virgo: A Versatile Spectrometer for Radio Astronomy
    2. Videos
    3. mp4
    4. webm

2 Free Software Foundation

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#FOSDEM,#Talk,#Virgo,#RadioAstronomy

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The Hubble Space Telescope: From Cosmological Conflict to Alien Atmospheres

Write up : 7th March 2021

This is a really interesting talk and overview of what the HST has undertaken since launch in 1990.

Some highlights

  • Gravitational lensing, found galaxies magnified 50x and detection of galaxies 10x fainter.
  • Precision cosmology & Hubble Constant calculations via several methods
  • Exoplanet Atmospheres
  • Exoplanets e.g 57 Pegasi
  • Exoplanets found from transiting host star
  • Planetary Atmospheres plus detection of organic molecules
  • Earth size Exoplanets (Trappist 1b and 1c)

The talk also makes reference to academic papers, which can be easily searched for, so for example

With the last point in the list above, this paper was De Wit, et al 2016 Nature 537,69 – if you search for this you find arxiv 1006.01103 which is publication in the above journal 2016Natur 537

The 537 refers to the volume, and 69 is the first page of the article, in this case the article is on pages 69 to 72.

So using the references from the talk you can do further reading.

Well worth watching

Space Telescope Science Institute Public lectures The Hubble Space Telescope: From Cosmological Conflict to Alien Atmospheres Tue 2nd March 2021

Link

#space,#telescope,#astronomy,#lecture,#public,#online, #talk,#science

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The Milky Way vs. Andromeda: When Galaxies Collide

Space Telescope Science Institute Public lectures The Milky Way vs. Andromeda: When Galaxies Collide Tue 2nd Feb 2021

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The Darkest Secrets of the Universe

Space Telescope Science Institute Public lectures The Darkest Secrets of the Universe Tue 19 Jan 2021

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At Home (and On Campus) with EFF

January 7, 2021 – 12:00pm to 1:30pm PST Twitch

Join the EFF for a talk on Privacy

Responding to the COVID-19 pandemic, colleges have rushed to adopt new practices and new technologies —sometimes creating a serious threat to the civil liberties of students and workers on campus. Join EFF for a live streamed video discussion about how mandated COVID apps can compromise our security and privacy, while undermining trust in the efforts of public health workers.

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Active galaxies Review

So following on from the post on December 1st this is a quick review of the active galaxies lecture from the Space Telescope Science Institute.

This lecture, presented by Dr Mitchell Revalski, is really interesting, looking at how supermassive black holes, despite their small size compared to the galaxy they reside in.

Energy from these can push away surrounding gas, and heat this up which reduces star formation as gas needs to cool to form stars.

so scales are pretty huge:

First lets look at what a light year is

Citation : spaceplace.nasa.gov

For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!

1 pc = 1 parsec = 3.26 light years

Supermassive black hole < 1pc

Bulge = 1 = 3 kpc (kilo parsec)

disk 30 kpc

circumgalactic area 50kpc

So even though these black holes are very small, they have a big influence on what surrounds them.

We know this is happening thanks to the research that led to the 2020 Nobel prize.

Well worth watching and the link is above.

Next lecture 19th Jan – The Darkest Secrets of the Universe Speaker: Raja Guhathakurta (UC Santa Cruz)

#astronomy,#science,#space,#telescope,#scsci,#talk, #solarsystem,#galaxy,#blackhole,#supermassive,#stars, #gravity,#light,#matter,#atoms,#emissions,#aabsorption, #spectrum,#gamma,#xray,#visible,#invisible,#parsec, #lightyear,#distance,#galactic,#bulge,#spacetelescope, #groundtelescope,#astronomers,#education,#public

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PodCast Search

I found this on the Fediverse last year, so am sharing again as it was originally shared on the Devon & Cornwall Linux user group website. 

As the name suggests this allows you to search for a pod cast in a good range of topics.

Libre Lounge is another podcast that has covered different aspects of the Fediverse, this includes some of the more technical aspects including a multipart discussion on Activity Pub.   Activity pub is one of the protocols that allows posts to be federated across the network.

#podcast,#search,#music,#streaming,#media,#ogg,#mp3, #format,#creativecommons,#files,#activitypub,#protocol, #copyleft,#copyright,#sharing,#information,#chat,#talk

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