The shape there tells you which way the galaxy is rotating. So clockwise and anti-clockwise is the direction of spin of the galaxy. And we put this question in because we were annoyed by a particle physicist, a guy called Michael Longo, who had looked at a couple of thousand galaxies
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They could either go in the same direction as the nuclear spin, or they could go in the opposite way. But if spin is clockwise in our universe, then it is also clockwise when reflected in the mirror. Which means it points in the same direction in both universes.
We can also show it in a triangle form, and we can see that even with the triangle, it works really, really well when it moves in a clockwise direction when we put the occluders. The question is-- and that's really the main question when it comes to these kind of applications--
I put the occluders back in, again, It's very clear that this is an occluded diamond task, where the diamond is hiding behind the occluders and is dancing in a clockwise direction. We know quite a bit about our brain and we know how we perceive information visually.
This portrait that's hanging there on the wall not too far from the hospital cafeteria was assembled by kids who were in the hospital in summer The salesperson could go around this clockwise or counterclockwise.
And of course, if I'm looking up at an array of anti-clockwise galaxies, if I fly to the other side of them, I see an array of clockwise galaxies. So that's disturbing. The other thing is that Sloan covered about this much of the sky.
We can tell Longo that he's wrong. Except that we found more anti-clockwise than clockwise galaxies as well-- to some insane level of significance. And so we worried about this for a bit.
So people were now seeing the opposite. So we should then have got more clockwise than anti-clockwise galaxies. But we still got more anti-clockwise galaxies.
So we should then have got more clockwise than anti-clockwise galaxies. But we still got more anti-clockwise galaxies. So it's not the universe that's odd.
So imagine you're looking down on the cat here. How many people see the cat rotating clockwise ? Few people. Good exercise in peer pressure, this, as well.
Few people. Good exercise in peer pressure, this, as well. How many people see it going anti-clockwise ? Slightly more. How many people have seen it change?
However, if you count the number of cogs, you will see that there are an odd number of cogs. And so if they're alternating clockwise , anti-clockwise , they will not be able to move, right? So famously, in particularly niche circles, the cogs in the two pound coin don't go anywhere.
the zero symmetry, if you like to think about it. So, there are six symmetries that this starfish has. Let's take the triangle. I can rotate that by a third of a turn clockwise or a third of a turn anti-clockwise and I've got, now I can reflect this as you said. I can reflect in the line through 'x' or I can reflect in the line through 'y' or I can reflect in the line through 'z.' So, five symmetries again, plus the extra symmetry where I'm just picking it up and put it back down again. So, both of these objects have six symmetries.
And we put this question in because we were annoyed by a particle physicist, a guy called Michael Longo, who had looked at a couple of thousand galaxies and said that the universe had more anti-clockwise than clockwise galaxies. And this is a result that makes no sense for two reasons.
And so the only way to arrange this would be a sort of cosmic conspiracy that made sure that all the bits of the universe knew that they were supposed to produce slightly more anti-clockwise galaxies. But 2,000 galaxies isn't a lot.
Anything that meshes with it has to go the other way. So teachers are going to be going anti-clockwise . But neither of them can move, because parents are jamming up the whole system, which makes this one of the more accurate
We look at volunteer activities, frequency of contact with family, frequency of contact with neighbors. And I want to talk to you about the counter-clockwise experiment in a little bit.
buried a magnetometer, which is an instrument to study Earth's magnetic fields. And so the constellation organization is a sort of spiral counter clockwise .
As Thomson defined it, this spot has high positive curl. At this spot, it would rotate clockwise but not as rapidly, so it has lower negative curl. And here, the current pushes on it equally in both directions, so it wouldn't rotate at all.
We look at volunteer activities, frequency of contact with family, frequency of contact with neighbors. Retrieval bias was the other great pier that she utilized in creating the counter-clockwise experiment.
so just by being inside the Fogo Institute we get to touch all of these members of the uh metch ecosystem so from the uh from the top right hand side you see the hospital and then clockwise you see the the Met companies the Academia to Stanford uh the Physicians and the government agencies and the
in accordance with the left hand rule. So at one magnet pair, the electrons will curve clockwise , and at the next pair counterclockwise and so on. This causes the electrons to wiggle.
They're actually better than Kevin, because a crowd will always outperform a single, slightly distractable expert. And so we could sort our galaxy into elliptical, to clockwise spirals, and anti-clockwise spirals. And just for fun, I want to make sure I-- I told you about the clockwise and anti-clockwise spirals.
And so we could sort our galaxy into elliptical, to clockwise spirals, and anti-clockwise spirals. And just for fun, I want to make sure I-- I told you about the clockwise and anti-clockwise spirals. The shape there tells you which way the galaxy is rotating.
So any observation you make on large scales shouldn't depend on where you are in the universe. And of course, if I'm looking up at an array of anti-clockwise galaxies, if I fly to the other side of them, I see an array of clockwise galaxies.
"Education works best when all the parts are working." Now just-- if you would tolerate me breaking this down into unnecessarily small steps-- it's students, the cog labeled students is going clockwise . Anything that meshes with it has to go the other way.
We look at volunteer activities, frequency of contact with family, frequency of contact with neighbors. She's still there. And she's very famous for doing something called the counter-clockwise experiment.
We look at volunteer activities, frequency of contact with family, frequency of contact with neighbors. So the ability to look at power of reminiscence and retrieval bias gives us our counter-clockwise experiment.
We look at volunteer activities, frequency of contact with family, frequency of contact with neighbors. It's one that Ellen Langer could take in spades when she's designing her counter-clockwise experiment.
We look at volunteer activities, frequency of contact with family, frequency of contact with neighbors. So nostalgia was the first great pier that Ellen Langer was using to design her counter-clockwise .
They just scatter off of each other. Crossing symmetry says that if this diagram exists, I can rotate it clockwise by 90 degrees and get another diagram that exists. So I'm glossing over the difference between particles and antiparticles here.
This is the greatest thing since sliced bread. As my English wife would say, it's not clockwise .
wilderbeast in Africa so the Serengeti is one of the few remaining natural grasslands on the planet with these huge migrating herds of zebra and wilderbeast there's no beginning or end to their Journey they have this constant clockwise Trek it's about 1,800 miles they search for fresh water and fresh grass and the herds stay closely packed together to uh defend themselves against
high is fairly well localized in that area and that's what's causing it highs rotate clockwise in the northern
It's not clear what the form is. As soon as I put occluders on the corners, you can see that it's a diamond dancing in a counter-- or in a clockwise direction. Again, I take the occluders out, everything falls apart.
So it's not the universe that's odd. It's us. Something about how we see these images makes it easier to see an anti-clockwise than a clockwise galaxy. One suggestion, my favorite, is something to do with the rotating figure illusion.
Which means that, if you observe the spin of an electron in quantum mechanics, it will either be spinning clockwise by amount 1/2
So to make it simple, let's say the electron can do two things: go counterclockwise and clockwise , right?
So I always like to start a talk with a little warm-up exercise. And this is one where, if you're sitting down, pick up your right foot and spin it in a clockwise motion. Keep spinning
it. And keep spinning it as you draw a big number six in front of your face. Keep spinning it clockwise . It's really hard to do, isn't it? All right. So figure that one out.
doesn't matter really, do the third of a turn followed by a sixth of a turn, it still ends up in the same place. So, there's some symmetry in the way the symmetries interact, but that's not true for the triangle. Let's do two symmetries of the triangle. We're going to rotate by a third of a turn anti-clockwise then reflect in 'x'. The combined effect is if I've just reflected in 'z' but now do these in a different order; do the reflection first and then rotate by a third of a turn and it ends up in a different place. It's as if I'd
zero? If you're not counting anything, you don't need a number." But the Indians realized the power of zero to actually make advances in mathematics. So, here again this is like the zero symmetry, if you like to think about it. So, there are six symmetries that this starfish has. Let's take the triangle. I can rotate that by a third of a turn clockwise or a third of a turn anti-clockwise and I've got, now I can reflect this as you said. I can reflect in the line through 'x' or I can reflect in the line through 'y' or I can reflect