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  1. Broch

    Spring has Sprung - 2024

    Here you go :) Primroses Lesser Celandine Wood Anemone
  2. Broch

    Bending a Mora carving knife.

    There is no sensible answer to your question - heat treated carbon steel does not take well to bending, it usually snaps. To do it without risk you would have to heat it, bend it, re-heat treat it and then re-handle it - more trouble than it's worth :)
  3. Broch

    Hi - just joined!

    Welcome to the forum Tom :)
  4. Broch

    Spring has Sprung - 2024

    First time down in the wood today since I finished coppicing two weeks ago - what a change! Primroses, lesser celandine, and carpets of wood anemone - no chiffchaff here yet but any day now :)
  5. Broch

    Hi from Herts UK

    Welcome to the forum :)
  6. Broch

    Glass - Oldest known production

    Yeh, apologies, I've just re-read my old notes on this. I have confused myself relying on memory (which, I must remember not to do :)). Although, having said that, two of my references seem to disagree with each other - one says Silica and Quartz are related but differ in crystal structure...
  7. Broch

    Pocket Dump

    Now that is definitely a case of the kettle calling the pot black! I think you need to go back to your society rules on they're and there are :) (only pulling your leg, we've all done it!)
  8. Broch

    Glass - Oldest known production

    I'd forgotten that! You're right, so it's the crystal structure that must be considered an impurity? Quartz IIRC is defined as being made up of a specific crystal structure. It's even more confusing than I thought.
  9. Broch

    Glass - Oldest known production

    Oh boy, it looks like the academics are far from specific in the definition of the two as well! An article on ancient artefacts quotes the British Museum in trying to differentiate glass and faience - I think I'm going to stop delving 'cos it's a rabbit warren - I'm going to adopt the view that...
  10. Broch

    Glass - Oldest known production

    Sorry to disagree, we are getting into detail here, sand is mostly silica (silicon dioxide, as you say), quartz is considered an impurity, though its quantity will vary depending on the geology of the source. If faience is made from quartz I can't see how it's primary material can be sand. I...
  11. Broch

    Glass - Oldest known production

    Ta :)
  12. Broch

    Glass - Oldest known production

    Again, and to the best of my knowledge, Roman, 1st C BC for windows - usually small pieces held together with lead. I don't believe there were clear glass bottles until much later - but I may be wrong on that. It does seem strange that we had bottles and clear glass (probably more translucent...
  13. Broch

    Glass - Oldest known production

    Now you're confusing me; I thought the very definition of faience was that it was made of quartz. I appreciate it has 'glass like qualities', in terms of it's gloss and texture etc. but I thought it was always opaque, can it be transparent? If so, I've been working from the wrong base line :)
  14. Broch

    Glass - Oldest known production

    Ah, I thought Faience was differentiated from glass as it was used as a glaze and made from quartz not silica based - thanks for that.
  15. Broch

    Glass - Oldest known production

    Mmm... I'd have to research that; I only study pre-history :)
  16. Broch

    Glass - Oldest known production

    Glass didn't come to Britain until the Romans brought it.
  17. Broch

    Glass - Oldest known production

    It's uncertain. We don't know if the first glass objects (found in Iraq) dated from nearly 4000 years BC (IIRC) were made on purpose or by accident - they are beads. However, glass making made significant leaps from then on.
  18. Broch

    Your favourite EDC item?

    I presume you mean you don't like change or evolution of word meaning in your lifetime as etymology itself is ongoing and continuous :); but you youngsters are definitely to blame :)
  19. Broch

    Knife Lore and other old customs

    I don't know, you guys from the posh side of the river - for us it was copper but usually 1/2d :)
  20. Broch

    Knife Lore and other old customs

    Ah, you just haven't played enough VR RPGs or you'd know that there are some things that make no sense but unlock either success or failure :)