Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?
    New to Twitter?
    Sign up
marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

Tweets

Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

Tweets

  • © 2021 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list

    Under 100 characters, optional
    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Chris Davies‏ @ChrisDaviesw 25 Jun 2018
      • Report Tweet
      • Report NetzDG Violation

      Chris Davies Retweeted CNN

      Rules were flouted somewhere, sadly. @marcan42 @bofh453https://twitter.com/cnn/status/1011212577463046149 …

      Chris Davies added,

      CNNVerified account @CNN
      A 9-year-old boy in Greece permanently injured his left eye when he repeatedly gazed into a laser pointer's green beam, doctors say https://cnn.it/2K8swj1  pic.twitter.com/lQyX1WJ397
      1 reply 0 retweets 0 likes
    2. Hector Martin‏ @marcan42 25 Jun 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @ChrisDaviesw @bofh453

      This happens all the time, sadly. Meanwhile, that physician has no clue about laser safety. "Green-blue lasers are typically considered more dangerous than red-orange lasers because they emit a light [...] to which the human eye is most sensitive". That's totally backwards.

      1 reply 0 retweets 1 like
    3. Hector Martin‏ @marcan42 25 Jun 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @marcan42 @ChrisDaviesw @bofh453

      At visible wavelengths, the only thing that matters is power. Green lasers appear brighter at the same power. Therefore, at the same apparent brightness, a green laser is much safer than a red laser, since it will be much lower power.

      1 reply 0 retweets 3 likes
    4. Hector Martin‏ @marcan42 25 Jun 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @marcan42 @ChrisDaviesw @bofh453

      This isn't considering IR leakage from DPSS green lasers though, which is a totally different problem that has nothing to do with the sensitivity of the retina. That just depends on how crappy the laser pointer is.

      2 replies 0 retweets 1 like
    5. Chris Davies‏ @ChrisDaviesw 25 Jun 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @marcan42 @bofh453

      Agree with you up to a point, but don’t know whether makers ‘reduce power’ just because’ it’s a green laser. In passing, most reports I’ve seen of misuse in UK relate to lasers being pointed at aircraft.

      1 reply 0 retweets 0 likes
    6. This Tweet is unavailable.
    7. This Tweet is unavailable.
    8. This Tweet is unavailable.
    9. This Tweet is unavailable.
      Hector Martin‏ @marcan42 25 Jun 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @bofh453 @ChrisDaviesw

      Was this just the KTP or the whole cavity? All the green cheapos I've seen recently have a monolithic block with the ND:YVO4 + KTP and cavity mirrors all in one piece. Older models had more discrete components.

      2:20 PM - 25 Jun 2018
      1 reply 0 retweets 0 likes
        1. This Tweet is unavailable.
        2. Hector Martin‏ @marcan42 26 Jun 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @bofh453 @ChrisDaviesw

          Interesting. I think all the modules I've seen in the past 8 years or so used the monolithic block, but I haven't torn down that many.

          0 replies 0 retweets 0 likes
          3. End of conversation

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2021 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info