Lemmy Posterdati
  • Communities
  • Create Post
  • Create Community
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
☆ Yσɠƚԋσʂ ☆@lemmy.ml to Technology@lemmy.mlEnglish · 5 days ago

The Chinese County Producing Half the World's Eyeglass Lenses Now Uses Lithography Machines

pandaily.com

external-link
message-square
14
link
fedilink
53
external-link

The Chinese County Producing Half the World's Eyeglass Lenses Now Uses Lithography Machines

pandaily.com

☆ Yσɠƚԋσʂ ☆@lemmy.ml to Technology@lemmy.mlEnglish · 5 days ago
message-square
14
link
fedilink
Danyang county, making 50% of global eyeglass lenses, introduces semiconductor lithography to produce nano-structured lenses as thin as 2mm even for 1500-degree prescriptions.
alert-triangle
You must log in or # to comment.
  • ☂️-@lemmy.ml
    link
    fedilink
    arrow-up
    16
    ·
    4 days ago

    The new approach, based on nano-structure optics, replaces curved surfaces with a flat substrate etched with millions of microscopic pillars — each just one-thousandth the width of a human hair. These pillars slow light passing through them by varying amounts depending on their height and spacing, precisely controlling the direction of light waves. The result: even 1,500-degree prescriptions can be made just 2mm thick, with material utilization rates exceeding 95%.

  • cosmos8188@leminal.space
    link
    fedilink
    arrow-up
    5
    ·
    4 days ago

    Wonder who really will benefit from this new manufacturing process, the businesses and the middlemen or the consumers…

    • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
      link
      fedilink
      arrow-up
      9
      arrow-down
      4
      ·
      3 days ago

      In China, being socialist, it’s the working class that benefits.

      • mabeledo@lemmy.world
        link
        fedilink
        arrow-up
        2
        ·
        3 days ago

        Have you been to China recently?

        • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
          link
          fedilink
          arrow-up
          6
          arrow-down
          1
          ·
          2 days ago

          I have actually, but I don’t see how that’s relevant to being informed on China.

          • mabeledo@lemmy.world
            link
            fedilink
            arrow-up
            3
            arrow-down
            2
            ·
            2 days ago

            deleted by creator

            • Cowbee [he/they]@lemmy.ml
              link
              fedilink
              arrow-up
              2
              ·
              1 day ago

              Public ownership is the principal aspect of the economy, and the working classes control the state. It’s socialist.

            • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
              link
              fedilink
              arrow-up
              5
              arrow-down
              1
              ·
              2 days ago

              Maybe you should spend a bit of time to actually learn about modern China and then form an educated opinion on the subject. Modern China is a socialist state where the working class holds power, but capitalist relations have not yet been abolished. That’s what socialism is, it’s a transitional state between capitalism and communism.

              90% of families in the country own their home giving China one of the highest home ownership rates in the world. What’s more is that 80% of these homes are owned outright, without mortgages or any other leans. https://www.forbes.com/sites/wadeshepard/2016/03/30/how-people-in-china-afford-their-outrageously-expensive-homes

              Student debt in China is virtually non-existent. https://www.forbes.com/sites/jlim/2016/08/29/why-china-doesnt-have-a-student-debt-problem/

              Chinese household savings hit another record high in 2024 https://www.wsj.com/livecoverage/stock-market-today-dow-jones-bank-earnings-01-12-2024/card/chinese-household-savings-hit-another-record-high-xqyky00IsIe357rtJb4j

              People in China enjoy high levels of social mobility https://www.nytimes.com/interactive/2018/11/18/world/asia/china-social-mobility.html

              The typical Chinese adult is now richer than the typical European adult https://www.businessinsider.com/typical-chinese-adult-now-richer-than-europeans-wealth-report-finds-2022-9

              Real wage (i.e. the wage adjusted for the prices you pay) has gone up 4x in the past 25 years, more than any other country. This is staggering considering it’s the most populous country on the planet. https://www.youtube.com/watch?v=Cw8SvK0E5dI

              The real (inflation-adjusted) incomes of the poorest half of the Chinese population increased by more than four hundred percent from 1978 to 2015, while real incomes of the poorest half of the US population actually declined during the same time period. https://www.nber.org/system/files/working_papers/w23119/w23119.pdf

              From 1978 to 2000, the number of people in China living on under $1/day fell by 300 million, reversing a global trend of rising poverty that had lasted half a century (i.e. if China were excluded, the world’s total poverty population would have risen) https://www.semanticscholar.org/paper/China’s-Economic-Growth-and-Poverty-Reduction-Angang-Linlin/c883fc7496aa1b920b05dc2546b880f54b9c77a4

              From 2010 to 2019 (the most recent period for which uninterrupted data is available), the income of the poorest 20% in China increased even as a share of total income. https://data.worldbank.org/indicator/SI.DST.FRST.20?end=2019&amp%3Blocations=CN&amp%3Bstart=2008

              By the end of 2020, extreme poverty, defined as living on under a threshold of around $2 per day, had been eliminated in China. According to the World Bank, the Chinese government had spent $700 billion on poverty alleviation since 2014. https://www.nytimes.com/2020/12/31/world/asia/china-poverty-xi-jinping.html

              Over the past 40 years, the number of people in China with incomes below $1.90 per day – the International Poverty Line as defined by the World Bank to track global extreme poverty– has fallen by close to 800 million. With this, China has contributed close to three-quarters of the global reduction in the number of people living in extreme poverty. https://www.worldbank.org/en/news/press-release/2022/04/01/lifting-800-million-people-out-of-poverty-new-report-looks-at-lessons-from-china-s-experience

              None of these things happen in capitalist states, and we can make a direct comparison with India which follows capitalist path of development. In fact, without China there practically would be no poverty reduction happening in the world.

              If we take just one country, China, out of the global poverty equation, then even under the $1.90 poverty standard we find that the extreme poverty headcount is the exact same as it was in 1981.

              https://www.currentaffairs.org/2019/07/5-myths-about-global-poverty

              The $1.90/day (2011 PPP) line is not an adequate or in any way satisfactory level of consumption; it is explicitly an extreme measure. Some analysts suggest that around $7.40/day is the minimum necessary to achieve good nutrition and normal life expectancy, while others propose we use the US poverty line, which is $15.

              https://www.cgdev.org/blog/12-things-we-can-agree-about-global-poverty

              And finally, here are a few books you can read on the subject of China’s development.

              • https://1804books.com/products/chinas-great-road
              • https://redletterspp.com/products/the-east-is-still-red
              • https://socialistchina.org/2024/10/02/new-book-peoples-china-at-75-the-flag-stays-red/
              • mabeledo@lemmy.world
                link
                fedilink
                arrow-up
                1
                arrow-down
                4
                ·
                2 days ago

                deleted by creator

                • ☆ Yσɠƚԋσʂ ☆@lemmy.mlOP
                  link
                  fedilink
                  arrow-up
                  5
                  arrow-down
                  1
                  ·
                  2 days ago

                  reading comprehension is really not your forte is it?

                  I have actually, but I don’t see how that’s relevant to being informed on China.

Technology@lemmy.ml

technology@lemmy.ml

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !technology@lemmy.ml

This is the official technology community of Lemmy.ml for all news related to creation and use of technology, and to facilitate civil, meaningful discussion around it.


Ask in DM before posting product reviews or ads. All such posts otherwise are subject to removal.


Rules:

1: All Lemmy rules apply

2: Do not post low effort posts

3: NEVER post naziped*gore stuff

4: Always post article URLs or their archived version URLs as sources, NOT screenshots. Help the blind users.

5: personal rants of Big Tech CEOs like Elon Musk are unwelcome (does not include posts about their companies affecting wide range of people)

6: no advertisement posts unless verified as legitimate and non-exploitative/non-consumerist

7: crypto related posts, unless essential, are disallowed

Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 219 users / day
  • 612 users / week
  • 2.32K users / month
  • 6.21K users / 6 months
  • 1 local subscriber
  • 42.9K subscribers
  • 796 Posts
  • 3.82K Comments
  • Modlog
  • mods:
  • MinutePhrase@lemmy.ml
  • UI: unknown version
  • BE: 0.19.13
  • Modlog
  • Legal
  • Instances
  • Docs
  • Code
  • join-lemmy.org