Paul Sutton

Paul Sutton – personal blog

Ultraheavy particle dark matter

Paper on the production of Ultraheavy particle dark matter

Daniel Carney et al. * SciPost Phys. Core 6, 075 (2023)

We are the community behind #SciPost's #physics journals

Tags

#Physics,#Particles.#Ulytsheavy.#DarkMatter,#Production.#Science

STEM GROUP – November 2023 Write up

Today we had a talk from Chris Thorpe, this covered the topics below.

  • What is light?
    • Why is measuring it important?
  • Ways to measure light:
  • Properties of light
  • Measuring the speed of light:
    • Via Snell’s Law
    • Microwave Method
    • Interferometric
    • Error Analysis.

choc

So we used a bar of chocolate to work out the speed of light, by putting in the microwave for about a minute. Then measuring the distance between two of the areas that had changed. Using this measurement and the frequency of the microwave, we calculated a figure that is very close to the speed of light.

Result : 294,000,000 m/s -1 Actual : 299,792,458 m/s -1

interferometer

Side on image of the interferometer.

interferometer

This image of the interferometer should show a green dot on the paper on the wall. When a liquid is place infront of the laser, the beams trajectory changes due to the refraction of the liquid. .

results

The results for both experiments are shown here.

STEM GROUP – November 2023

speed of light talk

The November event takes place on the 11th November. We will be joined by Chris Thorpe from Thales Alenia Space and we will be looking at :-

  • What is light?
    • Why is measuring it important?
  • Ways to measure light:
  • Properties of light
  • Measuring the speed of light:
    • Via Snell’s Law
    • Microwave Method
    • Interferometric
    • Error Analysis.

The target audience for this is going to be A'level upwards, Undergraduate and also those working within industry as well as anyone else interested.

Please note I am NOT planning any other science activities, but am planning activities that are related to the above.

As a result while the STEM group event is usually 11am to 15:00 it may be cut short so there is more time to pack away at the end.

Paignton Library Room 13.

On a related topic, this is a Transit simulator for looking at how we find planets around other stars.

NFL 2023 week 10

NFL week 9 fixtures can be found here

Links

Tags

#Football,#NFL,#Week10

A Dangerous Conflation

An open letter from Jewish writers

This is an excellent piece that is well worth reading, given the worsening crisis, in Gaza, West bank and of course Israel it makes reference to an article explaining the actual definition of antisemitism, I have included a link to this [1]. It is also quoted at [2] to help emphasize the point here.

  1. What is antisemitism?
  2. HRA International Holocaust Remembrance Alliance
    Calling for, aiding, or justifying the killing or harming of Jews in the name of a radical ideology or an extremist view of religion.
    Making mendacious, dehumanizing, demonizing, or stereotypical allegations about Jews as such or the power of Jews as collective — such as, especially but not exclusively, the myth about a world Jewish conspiracy or of Jews controlling the media, economy, government or other societal institutions.
    Accusing Jews as a people of being responsible for real or imagined wrongdoing committed by a single Jewish person or group, or even for acts committed by non-Jews.
    Denying the fact, scope, mechanisms (e.g. gas chambers) or intentionality of the genocide of the Jewish people at the hands of National Socialist Germany and its supporters and accomplices during World War II (the Holocaust).
    Accusing the Jews as a people, or Israel as a state, of inventing or exaggerating the Holocaust.
    Accusing Jewish citizens of being more loyal to Israel, or to the alleged priorities of Jews worldwide, than to the interests of their own nations.
    Denying the Jewish people their right to self-determination, e.g., by claiming that the existence of a State of Israel is a racist endeavor.
    Applying double standards by requiring of it a behavior not expected or demanded of any other democratic nation.
    Using the symbols and images associated with classic antisemitism (e.g., claims of Jews killing Jesus or blood libel) to characterize Israel or Israelis.
    Drawing comparisons of contemporary Israeli policy to that of the Nazis.
    Holding Jews collectively responsible for actions of the state of Israel.

Mastodon : Getting started

Over the past year, Mastodon, which is part of the decentralized Fediverse has seen a huge influx of new users. Many from Twitter (now X) who are disillusioned with what is happening.

This has resulted in many guides aimed at new users. The link here has another guide that is focused on Mastodon, but does make reference to other federated services.

Hopefully this is useful to people and helps them get started. If you need help I can try and help via IRC.

Euclid telescope

The European Space Agency reveals the first stunning Euclid telescope images, showing the universe as you've never seen it before:

Read more here

The difference between the Euclid mission and the JWST

The full-colour photos offer the clearest glimpse yet of the cosmos, as the telescope continues its mission to unlock the mysteries of the furthest reaches of space known as the "dark universe".

Tags

#Space.#ESA.#Euclid,#Telescope

LibreOffice Documentation 04/11/2023

November is Month of LibreOffice

Documentation update(s)

LibreOffice 7.6 guides (Published)

Writer 7.6 Impress 7.6 Draw 7.6

LibreOffice 7.5 guides (Published)

  • Draw 7.5
  • Getting Started 7.5
  • Writer 7.5
  • Calc 7.5
  • Math 7.5
  • Impress 7.5
  • Designing with LibreOffice

REFERENCES

1 LibreOffice 2 LibreOffice Bookshelf 2a LibreOffice Documentation * LibreOffice shortcut keys 3 Free Software Foundation 4 Free Software Foundation Europe 5 LibreOffice Conference 7. Udemy LibreOffice Training

TAGS

#LibreOffice,#Office,#Writer,#Calc,#Base,#Impress #Draw,#GettingStarted,#Documentation,#Libreoffice

Donate using Liberapay

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

Crude Oil and alternatives

Also publishing this again as it is related.

So further to a previous post which looked at what we get from #CrudeOil. We are going to need some serious #CriticalThinking to work out what we can do to replace many of the products listed.

So firstly, we need to understand what we mean by Critical thinking. This infographic should help

critical thinking

We need to look at the Who, What, When, Where,, Why, and How, so in essence we are asking open questions, as in those which we can't generally just answer with yes or no.

So lets look at a few questions

Who is going to develop alternatives? Who is going to fund this? Who is going to be directly affected if we stop production of certain products, (and we don't just mean the oil producers)

What will the alternatives be? What time frame is needed? What can we do without if we did stop production?

Where will we find alternatives? Where are the best places to build the infrastructures needed?

When can we do this (again time frame)

Why do we need to find alternatives? Why do we need this product (e.g Teflon), if it isn't essential can we do without it?

How are we going to develop alternatives? How will our education system need to change to accommodate new thinking within the curriculum? How are we going to retrain existing workforces and new workers with the skills needed?

So these are just a few questions that may need to be considered. At some point Crude Oil will run out anyway, so we need to develop alternatives.

it may be we carry on extracting Crude Oil but create the products we need from this, in which case

How do we store what is left over? How long for? What will be the cost of this storage?

So lots of things to consider if we want to just give up on Oil. We get more products than we think from this.

We can discuss further on Mastodon.

Tags

#FossilFuels,#CrudeOil,#Products,#Alternatives,#CriticalThinking

Products from crude Oil

In a previous post I have l listed products from crude oil. This information from obtained from an info graphic.

Following a conversation on Mastodon, I am reposing this list, with the view of getting some assistance in researching the following:-

  1. Information about each product
  2. How is this produced from Oil ? 3 Can this be made in other ways, but alternative methods should also be more sustainable. For example PVC can be made, but it is more energy intensive (so that is not an option) ?
  3. Can we do without this product altogether ? 4a What alternatives are available or can be produced or used ?

It is important to apply critical thinking at all stages here.

What we get from crude oil