Recent content by labsleuth

  1. labsleuth

    Class Sizes

    It's definitely an advantage and much nicer to technician!
  2. labsleuth

    More Stuff

    Could it be for the custard powder explosion thing where you blow it through bunsen burner flames?
  3. labsleuth

    Class Sizes

    Also independent school. Largest class 22, but KS4 and KS5 are often 2-12 students.
  4. labsleuth

    Power supplies

    We've just ordered this bundle, which works out at £123 each. More expensive, but we've got a loas already and rarely have problems with them. Depends just how "tight" money is... B8R06058 - Bench Power Unit - Pack of 5 | Philip Harris
  5. labsleuth

    Mental Health Matters

    @Emma Thanks, Emma. You too!
  6. labsleuth

    Carbon dioxide solution

    I was asked to do this a few years ago. I got a conical flask with side arm and attached some rubber tubing (like you would when making gas to fill boiling tubes etc.) I put some calcium carbonate (or whatever carbonate you've got) and added dilute hydrochloric acid. I then put this in to a...
  7. labsleuth

    Carbon dioxide solution

    I presume they just mean water that has had CO2 pumped in to it to lower the pH? Just make some CO2 (carbonate powder and acid) and put a delivery tube in to a beaker of water. Don't think it'll last long though, so do it fresh.
  8. labsleuth

    Mental Health Matters

    Last day here (except the five days I do over summer) Been such an odd year in so many ways, I feel emotionally exhausted and very much looking for some rest and recharge. Thanks to everyone on this forum (this group in particular). Have a great end of term and a lovely summer holiday! See you...
  9. labsleuth

    I retire next week

    Happy retirement, Carol. Sounds like you more than deserve it!
  10. labsleuth

    Anyone else a Hotel Chocolat fan?

    Yep. Love it. Treated my partner and I to one of their Easter eggs this year. Eye watering price, but my goodness, it was delicious!
  11. labsleuth

    Fellow technicians, it is time to roll up your sleeves, this is….

    Electromagnetic radiation/X ray?
  12. labsleuth

    Mental Health Matters

    @BioBee Congrats! Great news :D
  13. labsleuth

    liquid vs gel ferroxyl indicator: rusting a nail

    This is brilliant. What is it - a nail wrapped in copper wire?