Cosmic Rays

We welcome back Dr. Steve Barrett from the University of Liverpool for another of his mind-blowing and fascinating talks.

High-energy charged particles are continually raining down on the Earth. Where do they come from and how do they gain so much energy?

This talk includes a demonstration of a cloud chamber that allows cosmic rays to be seen

UDATE Following his excellent talk, Steve has been in touch say he’d be happy to take questions by email. He’s also offered more information:

If anyone missed grabbing a handout of the slides of my talk, they can be downloaded here:
https://www.liverpool.ac.uk/~sdb/Talks/Cosmic-Rays-HLCO.pdf
and a video recording of the talk is here:
https://youtu.be/P6wmB0Ae9UU

For anyone interested in building a cloud chamber for themselves this is the article in the journal ‘Physics Education’ that started it all:
https://iopscience.iop.org/article/10.1088/1361-6552/ad506c

The article in the Journal of the BAA:
https://www.liverpool.ac.uk/~sdb/CloudChamber/BAA-Cosmic-Rays.pdf

Detailed instructions describing how to build a cloud chamber for £35:
https://www.liverpool.ac.uk/~sdb/CloudChamber/Building-Cloud-Chamber.pdf

Weights and Measures
Richard Bullock from Altrincham and District Astronomical Society will take us on a journey around the “top10” objects in our solar system.

A stylized illustration of our solar system (Image credit : NASA/JPL)

This talk was originally scheduled for January 9th BUT, due to the freezing conditions, it was postponed and has been rescheduled for January 16th.

Things that go ‘Bump’ in the Dark.
Mark Holmes will present the story behind the ‘Blaze Star’, better known perhaps as T Corona Borealis. This object is one of a family of long period variable stars which is due to brighten any time now. Its increase in magnitude will be spectacular when it finally goes off!

Image credits : Stellarium (L) and Pete Lawrence / Sky at Night Magazine (R)