5 ms·

In the video, it says above 110K and not below, I got confused as well. I will add that a lot of people are deleting retweeting this. May be there is something

In the video, it says above 110K and not below, I got confused as well. I will add that a lot of people are deleting retweeting this. May be there is something more to it.

WinstonSmith84 3y ago
The first comment tells (from the professor talking in that video): > In order not to misunderstand everyone, let me say that it is below 110K, and 0 resistance is observed at normal pressure. Google translation, but I think it's clear that it's below and not above. At least normal pressure ... that's disappointing but still an improvement
- psychphysic 3y ago
  I still don't understand what this is saying. There was 0 resistance below 110 Kelvin (-165celcius)? But not at room temperature?
  - TylerE 3y ago
    Yes. At 110 the resistance is 0.0001 ohms. At the highest point on the chart, 200k (Still 100 below 0 F) the resistance is up to 0.1 ohm.
  - papercrane 3y ago
    In their sample they measured no resistance below 110 Kelvin. After 110 Kelvin resistance increased, although there was a weird dip in resistance around 225-250K that they can't explain (maybe instrument error.)
thecopy 3y ago
In the Resistance-Temperature graph (https://twitter.com/Lipez400/status/1686793608626663441/photo/4 https://twitter.com/Lipez400/status/1686793608626663441/phot...) the resistance starts increasing from 110K
- valine 3y ago
  What’s the explanation for the sudden drop between 230K and 250K? It’s not dropping to zero but something is happening there.
  - deleted 3y ago
    [deleted]
  - jacquesm 3y ago
    Yes, very odd. This may be why the original team believes they have a superconductor on their hands, but it doesn't quite get there and yet it does show the Meissner effect so something doesn't quite add up yet.
    - valine 3y ago
      Original team had 20 years to play the synthesis lottery. Maybe you tweak the setting just enough and that low resistance drops to zero. Who knows, I’m still feeling optimistic. He said in the video that their sample was more pure than the original paper. Would be wild if some impurity is what pushes it over the edge to a full blown super conductor.
      - jacquesm 3y ago
        They weren't quite playing the lottery as much as they were taking stacks of tickets and scratching them all off one by one to find something that looks like it might be a winner. This was very hard work. 100's or even thousands of samples. > Would be wild if some impurity is what pushes it over the edge to a full blown super conductor. I already mentioned this in another comment, but x-rays and radioactivity were discovered in that precise way.
    - rfoo 3y ago
      Note that the team claiming a zero resistance replicate at 110K is the same team who said failed to replicate Meissner a few days ago. In the latest video they still don't think they have observed Meissner.
threatripper 3y ago
It should say "up to 110K".

In the video, it says above 110K and not below, I got confused as well. I will add that a lot of people are deleting retweeting this. May be there is something more to it.

WinstonSmith84 3y ago

The first comment tells (from the professor talking in that video): > In order not to misunderstand everyone, let me say that it is below 110K, and 0 resistance is observed at normal pressure. Google translation, but I think it's clear that it's below and not above. At least normal pressure ... that's disappointing but still an improvement

psychphysic 3y ago
I still don't understand what this is saying. There was 0 resistance below 110 Kelvin (-165celcius)? But not at room temperature?
- TylerE 3y ago
  Yes. At 110 the resistance is 0.0001 ohms. At the highest point on the chart, 200k (Still 100 below 0 F) the resistance is up to 0.1 ohm.
- papercrane 3y ago
  In their sample they measured no resistance below 110 Kelvin. After 110 Kelvin resistance increased, although there was a weird dip in resistance around 225-250K that they can't explain (maybe instrument error.)

thecopy 3y ago

In the Resistance-Temperature graph (https://twitter.com/Lipez400/status/1686793608626663441/photo/4 https://twitter.com/Lipez400/status/1686793608626663441/phot...) the resistance starts increasing from 110K

valine 3y ago
What’s the explanation for the sudden drop between 230K and 250K? It’s not dropping to zero but something is happening there.
- deleted 3y ago
  [deleted]
- jacquesm 3y ago
  Yes, very odd. This may be why the original team believes they have a superconductor on their hands, but it doesn't quite get there and yet it does show the Meissner effect so something doesn't quite add up yet.
  - valine 3y ago
    Original team had 20 years to play the synthesis lottery. Maybe you tweak the setting just enough and that low resistance drops to zero. Who knows, I’m still feeling optimistic. He said in the video that their sample was more pure than the original paper. Would be wild if some impurity is what pushes it over the edge to a full blown super conductor.
    - jacquesm 3y ago
      They weren't quite playing the lottery as much as they were taking stacks of tickets and scratching them all off one by one to find something that looks like it might be a winner. This was very hard work. 100's or even thousands of samples. > Would be wild if some impurity is what pushes it over the edge to a full blown super conductor. I already mentioned this in another comment, but x-rays and radioactivity were discovered in that precise way.
  - rfoo 3y ago
    Note that the team claiming a zero resistance replicate at 110K is the same team who said failed to replicate Meissner a few days ago. In the latest video they still don't think they have observed Meissner.

threatripper 3y ago

It should say "up to 110K".