Going Postal
  • Home
    • Contact
    • Privacy Policy
    • Blog
  • Politics
    • Authoritarianism
    • Capitalism
    • Communism
    • Conservatives
    • Elections
    • European Union
    • Labour
    • Peace
    • Socialism
    • Terrorism
    • War
    • US
  • Economics
    • Business
    • Finance
    • Trading
  • Science
    • Engineering
    • Geology
    • Health
    • Physics
    • Mathematics
    • Space
    • Technology
  • History
    • English Civil War
    • 18th Century
    • 19th Century
    • 20th Century
    • WW I
    • WW II
    • The Cold War
  • Literature
    • Biography
    • Book Reviews
    • Fiction
    • Mystery
    • Poetry
    • Satire
    • Thriller
  • Forums
    • Campaigning
    • Competitions
    • Culture
    • Current Affairs
    • Elections
    • GP Events
    • Media Shows & Appearances
    • Publishing
    • Welcome
  • Merchandise
    • Trump Mugs and Tee Shirts
    • Custom Mug
    • GP Mugs
    • GP Coasters
    • GP Books
    • GP Keyrings

Articles by Doc Mike Finnley

Doc Mike Finnley, Going Postal
19th Century

Holography, Part Two

26th August 2020 Doc Mike Finnley 0

A Holographic Camera Standard photography uses a lens system to focus an image onto a film or an electronic sensor. If you recall from part one, Dennis Gabor had a problem with his electron microscope’s [more…]

Doc Mike Finnley, Going Postal
19th Century

Holography, Part One

19th August 2020 Doc Mike Finnley 0

Introduction To the Looking-Glass world it was Alice that said, “I’ve a sceptre in hand, I’ve a crown on my head. Let the Looking-Glass creatures, whatever they be Come dine with the Red Queen, the [more…]

Doc Mike Finnley, Going Postal
20th Century

Happy Birthday, Ruby!

16th May 2020 Doc Mike Finnley 0

Above photo: My ruby laser with a ‘mirror alignment laser’ just off to the right hand side of the photo. A small amount of smoke in the air makes the alignment laser-beam visible. In the [more…]

Engineering

Making A Ruby Laser – Part Five

25th September 2018 Doc Mike Finnley 0

Melting a hole through steel: The above image needs a little explanation! The Doc messed up his camera settings and under exposed the image. So I loaded it into Gimp and played with the curves [more…]

Engineering

Making A Ruby Laser – Part Four

11th September 2018 Doc Mike Finnley 0

The Doc’s ruby laser focused onto a lighter flint. The flint has been glued to the end of a match stick. The ‘explosion’ measures approximately 4 inches diameter. Interesting things to note are the ‘candy [more…]

Engineering

Making A Ruby Laser – Part Three

14th August 2018 Doc Mike Finnley 0

More information on laser speckle can be found here:  Speckle pattern A Mirror Alignment Tool The most important part of constructing a ruby laser (or any laser with external mirrors) are getting the mirrors alligned [more…]

Dr Mike Finnley, Going Postal
Engineering

Making A Ruby Laser – Part Two

31st July 2018 Doc Mike Finnley 0

(a ruby rod lit by two bright blue LEDs. Due to the IR filter in my camera the pink colour is actually red. What you are seeing is the absorption of the blue light and the [more…]

Engineering

Making A Ruby Laser – Part One

21st July 2018 Doc Mike Finnley 0

Introduction For many years the Doc has had the desire to attempt the construction of a ruby laser. After six months of hard work, disappointment, late nights, lots of booze and a drained bank account [more…]

Posts pagination

« 1 … 3 4

Latest Articles

  • Always Worth Saying’s Question Time Review
    5th December 2025 0
  • Jinnie’s Story, Book Nine – Chapter Eight
    4th December 2025 0
  • 3p per mile
    4th December 2025 0
  • A Trip to the Temple
    3rd December 2025 0
  • Immigration, unemployment and publicity
    3rd December 2025 0
  • Overland to Russia, Part Three
    2nd December 2025 0
  • A wet Saturday in 2016
    2nd December 2025 0

GP on Twitter

Tweets by GoingPostalBlog

Elsewhere on GP

  • My Legends of Pop Music – Part Forty-Six – Rod Stewart

    3rd June 2022 0
    If get this right, there will be many cover versions by future bands. I shall try and link live versions if they exist from the tellybox or a film, the sound quality may not be [more...]
  • Jinnie’s Story – Book Six, Chapter Fifteen

    1st February 2024 0
    Jinnie woke with a start and for a few seconds struggled to realise where she was. It was only when she saw the stewardess reading to the twins that she remembered where she was. Glancing [more...]
  • Die Straße

    3rd March 2022 0
    IT looked like it might once have been a bank. But then again it could just as easily have been a particularly upmarket haberdashery store back in the days of bone tape measures and black [more...]
  • Goodbye to School Hello to Work, Part Five

    12th August 2023 0
    Part one is here Part two is here Part three is here Part Four is here This time: Fallout from the lock in and Eck’s sudden departure I was woken by the alarm going off [more...]
  • ’59 Trail, Part Six

    24th October 2023 0
    Part 6 of my uncle, John Alldridge’s 1959 report from Canada’s Far North for the Birmingham Mail – Jerry F Flin Flon, North Manitoba This is a country where hard fact and fantastic fiction are [more...]

Articles by Author

  • 70s_girl
  • 1642again
  • 10210ken
  • Æthelberht
  • Alexsandr too
  • Always Worth Saying
  • Ancient Mariner
  • Ang Ryman
  • Annie Dee
  • AW Kamau
  • Bark Kantatas
  • Barbican
  • Bassman
  • Bergen
  • Beware of Geeks bearing GIFs
  • Bill Quango MP
  • Blown Periphery
  • Bobo
  • Chrissie
  • Churchills Shark
  • Colin Cross
  • Colliemum
  • Columba Palumbus
  • Cynic
  • Dalester
  • DH
  • Dixie
  • DJM
  • Dorset Knob
  • Doxie
  • Dr Mike Finnley
  • EJ – Wankpuffin
  • El Cnutador
  • Emile Woolf
  • Eraser of Love
  • Foxoles
  • Gillygangle
  • Gmbd
  • Godfrey Bloom
  • Grimy Miner
  • GrumpyAngler
  • Guardian Council
  • Ivory Cutlery
  • James Dalton
  • Jethro
  • Jerry F
  • Jerry Mandarin
  • JimmySP
  • Jim Walshe
  • Joe Slater
  • Joe Williams
  • John Booth
  • John Tull
  • Jonathon Davies
  • Judas was paid
  • Katabasis
  • Kent
  • Kipper
  • LetEnglandShake
  • Lugosi
  • Madam Revenant
  • Martin Mezger
  • Mr QM
  • Nautilus
  • NeverUpToTheJob
  • Noix
  • Northern man
  • Oddanatomy
  • OldTrout
  • Ozymandias
  • Paul_Southampton
  • Paul Wicker
  • Phil the test manager
  • Rat Catcher
  • RedBudgie
  • Reggie
  • Roger Ackroyd
  • Rookwood
  • Ross
  • SharpieType301
  • Shibusa
  • Sunshine & Showers
  • Sweaty Dave
  • Tachybaptus
  • The Black Swan
  • The Buttscratcher Jimmy
  • Tom Pudding
  • Verax Cincinnatus
  • Viciousbutfair
  • Vir Cantium
  • \/()43 |_|K19
  • well_chuffed
  • William
  • WorthingGooner
  • Wycombewanderer

Archives

Contribute to GP

If you wish to make a contribution small and often would be preferable. Paypal accepts all sorts of payment methods.




In Pictures

Meta
  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org
Sitemap
  • Home
  • Bash 2026
  • About
  • Contact
  • Support and Subscriptions
  • Moderation philosophy and policy
  • Privacy Policy
  • Disqus Help Page

Copyright © 2025 | MH Magazine WordPress Theme by MH Themes