4 ms·

Canadian team discovers power-draining flaw in most laptop and phone batteries

41 points by colinprince 4y ago

mattpallissard 4y ago
Polypropylene tubing is used in place of PVC (PET, not PVC was referenced in the article) when venting LNG/LP for a similar reason. It can handle the higher temperatures.
MichaelZuo 4y ago
Very likely everyone in the industry assumed PET based tape was inert because of some old reference-manual/paper/textbook from decades ago that claimed it was in some limited range of environmental conditions, and no one bothered to really check or question it later. Which raises the interesting question of how much low-hanging fruit there is in everything else?
- eurasiantiger 4y ago
  So if PET is not inert because it releases phthalates, is it safe for storing beverages intended for long-term regular consumption?
  - MichaelZuo 4y ago
    Depends on your definition of 'safe'. Any known plastic will release some non-zero amount of matter into the liquid. The difference is in how much more than zero.
    - wkat4242 4y ago
      That doesn't really answer the OP's question though. I'm kinda curious too now. I already heard that it's very bad to reuse PET bottles. I wonder if this is why.
      - MichaelZuo 4y ago
        'safe' is different depending on context, so there cannot be a general answer.
        eurasiantiger 4y ago
        You’re spreading disinformation.
        MichaelZuo 4y ago
        This seems like low-effort trolling. What I've written is clearly observable and reproducible by anyone with basic labratory equipment.
        eurasiantiger 4y ago
        Your posts seem like low-effort shilling. Why are you not answering the obvious questions with the information you obviously have? Why all the gatekeeping?
willcipriano 4y ago
> They did a chemical analysis of the red substance and found it was dimethyl terephthalate (DMT). Going to be hearing about this on Rogan.
- schiffern 4y ago
  Different DMT. The article means the first one, while Joe often refers to the second one: https://en.wikipedia.org/wiki/Dimethyl_terephthalate https://en.wikipedia.org/wiki/Dimethyl_terephthalate https://en.wikipedia.org/wiki/N,N-Dimethyltryptamine https://en.wikipedia.org/wiki/N,N-Dimethyltryptamine
  - gswdh 4y ago
    [dead]

41 points by colinprince 4y ago

Polypropylene tubing is used in place of PVC (PET, not PVC was referenced in the article) when venting LNG/LP for a similar reason. It can handle the higher temperatures.

MichaelZuo 4y ago

Very likely everyone in the industry assumed PET based tape was inert because of some old reference-manual/paper/textbook from decades ago that claimed it was in some limited range of environmental conditions, and no one bothered to really check or question it later. Which raises the interesting question of how much low-hanging fruit there is in everything else?

eurasiantiger 4y ago
So if PET is not inert because it releases phthalates, is it safe for storing beverages intended for long-term regular consumption?
- MichaelZuo 4y ago
  Depends on your definition of 'safe'. Any known plastic will release some non-zero amount of matter into the liquid. The difference is in how much more than zero.
  - wkat4242 4y ago
    That doesn't really answer the OP's question though. I'm kinda curious too now. I already heard that it's very bad to reuse PET bottles. I wonder if this is why.
    - MichaelZuo 4y ago
      'safe' is different depending on context, so there cannot be a general answer.
      - eurasiantiger 4y ago
        You’re spreading disinformation.
        MichaelZuo 4y ago
        This seems like low-effort trolling. What I've written is clearly observable and reproducible by anyone with basic labratory equipment.
        eurasiantiger 4y ago
        Your posts seem like low-effort shilling. Why are you not answering the obvious questions with the information you obviously have? Why all the gatekeeping?

willcipriano 4y ago

> They did a chemical analysis of the red substance and found it was dimethyl terephthalate (DMT). Going to be hearing about this on Rogan.

schiffern 4y ago
Different DMT. The article means the first one, while Joe often refers to the second one: https://en.wikipedia.org/wiki/Dimethyl_terephthalate https://en.wikipedia.org/wiki/Dimethyl_terephthalate https://en.wikipedia.org/wiki/N,N-Dimethyltryptamine https://en.wikipedia.org/wiki/N,N-Dimethyltryptamine
- gswdh 4y ago
  [dead]