Anton Petrov
Level B2· 688 words
Analysed: 49 expressions
Hello everyone, this is Anton, and today we're going to be discussing this really bizarre phenomenon that was recently physically confirmed by observing something out there in outer space. And well, specifically, it's a phenomenon in regards to vacuum. [snorts] And so, okay, imagine this. Imagine empty space,
the absolute nothingness that represents most of the cosmos out there above the atmosphere. Back in school, we were always told that vacuum is just emptiness. But the question is, is it actually empty? And can it act as something physical, even though it has nothing inside? And well, as you can
imagine, based on the study we're discussing today, and based on these observations, the answer seems to be yes. Under the right conditions, the empty space itself starts to behave exactly like a solid, transparent crystal, not so different from what you see right here. And this crystal starts
to bend light, split beams, and even act like a physical lens, despite once again having nothing inside. And although this might sound like science fiction or something that shouldn't happen, based on this groundbreaking study from August 5th of 2026, we now have definitive direct proof of a strange phenomenon
referred to as vacuum birefringence, something you can learn more about in the link in the description. And so, here, by using a fleet of telescopes on a planet and the giant radio dish in order to observe radio frequencies, approximately 15,000 light-years away from us, here a team of astronomers
witnessed a very strange effect as the fabric of space itself started to do something that was predicted 90 years ago. It started to physically act like a lens. And so, in this video, we're going to discuss exactly how this works and what's happening here, talk about the quantum weirdness of empty space, and
discuss how an extremely strong magnetic field can sometimes create very bizarre effects. >> [snorts] >> But, also discuss the major implications from this discovery. But, in order to understand all of this, we have to start with the definition of what exactly birefringence means. Or, basically, what
exactly is this optical phenomenon that sometimes is also referred to as double refraction. And well, uh normally, when light passes through something transparent like water or glass, it slows down just a little bit, with the measurement of the slowing down normally referred to as the refractive index. And
for a typical material like glass, this type of index is basically the same in every direction. So, it doesn't really matter how the light waves are oriented, because they'll all travel at the same speed. But, certain crystals like the calcite crystals, which is what you see right here, are
just a little bit different. And the proper term for this is anisotropic. And basically, that's because of the way that the atoms inside are arranged. They possess a very strict repeating grid that resembles something like this. And here, the electrons bound to these atoms are usually held with different
strengths in different directions. And well, light passing into these crystals, because it's affected by these electrons, tends to be refracted differently depending on the angle. And so, as the light wave, which is basically an oscillating electromagnetic field, passes through the crystal, it
starts to vibrate some of these electrons, with the vibration then affecting the light. And because electrons are easier to wiggle in one direction compared to other direction, uh the light wave here is going to experience different refraction depending on the direction it's coming from. And well, specifically, we're