32 Matching Annotations
  1. Jul 2025
  2. May 2025
  3. Apr 2025
  4. Mar 2025
  5. Aug 2024
  6. Jun 2024
    1. Achieving net-zero carbon emissions by 2050 will require a whopping 460% increase in copper production, which will require 194 new large-scale mines to be brought online over the next 32 years.

      for - green growth - mineral and metal shortages

      green growth - mineral and metal shortages

      • Achieving net-zero carbon emissions by 2050 will require
        • a whopping 460% increase in copper production,
        • which will require 194 new large-scale mines to be brought online over the next 32 years.
  7. Dec 2023
    1. https://www.ebay.com/itm/276234367177

      Industrial metal card catalog with 9 drawers containing 36 sections for 3x5" index cards. A tenth bottom drawer contains extra non-card space. Offered in late December 2023 for 450.00. Heavily used, stickers in label areas, some exterior hardware missing, some rust visible. Local pick up only in Rosamond, CA. Apparently there is no marking or manufacturing name plate; seller believes it to be Remington from 1940's, but without any evidence.

      Cost per drawer: $12.50

  8. Oct 2023
    1. Listed in late summer/early fall 2023.

      Art Metal Company card catalog (drawer sizes maybe 6x9" index cards? with 32 3/4 W x 38 3/4" H x 18 1/2" D). Possibly sectional with top and short leg sections, two sections of 3x2 drawers and a storage section with two doors. Nice patina.

      Listed originally at $1,200 and put on sale in early October 2023 for $960. Local pick up in Savannah, GA.

      Cost per drawer: $85.71 ($68.57 on sale)

  9. Aug 2023
  10. May 2023
  11. Mar 2023
  12. Dec 2022
  13. Nov 2022
  14. Sep 2022
    1. here are those same numbers compared 00:41:21 against reported global reserves so there's the amount of metal we need and there is the global reserves this column is the proportion of metals required to 00:41:33 phase out fossil fuels as a percentage that is of all the copper we need to make one generation of units current global reserves will get us 19.23 00:41:45 of the way there we don't have enough copper for one generation

      !- for : metals for energy transition - only have 19% of metals required for the first generation of phase out

    2. we used to have 500 years ago a small human system a big pile of natural resources and a small pollution plume 00:46:47 an industrial ecosystem of unprecedented size and complexity that took more than a century to build with support of the highest calorifically dense source of cheap energy the world has ever known that would be oil 00:46:59 in abundant quantities with easily available credit and unlimited mineral resources and now we've got a system that's a human system that's really large 00:47:10 a depleted natural resources [Music] portfolio compared to what we had but we've now got a massive pollution stream so now we seek to build an even more complex system with very expensive 00:47:24 energy a fragile finance system saturated in debt not enough minerals with an unprecedented number of human population embedded in a deteriorating environment 00:47:35 so at this point i'm going to say this is probably not going to go as planned

      !- key finding : green growth is not likely to be feasible - Simple diagram that illustrates the problem

    3. it also is summed together so everything we need is summed together per metal and that gives us this column here total metal required to produce one generation of technology units to phase 00:40:15 out fossil fuels and so that the that we've got these numbers here the next column is global metal production as it was from mining in 2019 00:40:28 so this is all from the usgs and the bgo the final column is how many years of production at the 2019 rate um would be needed to hit the actual 00:40:42 volumes needed so 2019's the last year before covert is the last year of stable data that's why i've used it so you might notice some of these numbers are rather large 00:40:55 like we will need seven thousand one hundred and one years of production to produce the needed number of volume of vanadium that's your uh your redox batteries

      !- for : metals for energy transition - unfeasible numbers

  15. Nov 2021
    1. Those structures reveal that Ag+ binds to 6PGDH at both catalytic and non-catalytic sites with dominant binding residues of Cys, His and Met in quasi-linear and trigonal geometry, which is generally consistent with our previous reports36,40. Together with the site-directed mutagenesis study, we unveil that Ag+ abolishes the enzymatic activity of 6PGDH through targeting His185 in the active site and morphing its catalytic pocket.

      Ag can bind with protein at Cys, His and Met residues.

  16. Apr 2020
  17. Aug 2019
  18. Jun 2019
  19. Jun 2017