Space “cubically” with shapes that act like spheres? A proof at the intersection of geometry and theoretical computer science says yes.
A new design for an optical fiber borrows concepts from topology to protect light from imperfections in the fiber’s light-guiding materials or from distortions in its cross section.
Using concepts from the mathematical field of topology, researchers at the University of Bath, UK, have designed an optical fiber that can robustly propagate light, even if there are variations in the properties of its light-guiding materials or in its overall geometry [1]. The team thinks that this newfound topological protection could enable advances in optical communication and photonic quantum computing.
The concept of topology is often explained using a joke about a donut and a coffee cup. A coffee cup made of rubber can be continuously twisted and stretched—no cuts need to be made—so that it takes on the shape of a donut. Even though the object’s outline changes under this transformation, its essence remains the same—it contains one hole. Thus, the quip goes, a topologist cannot tell the difference between the two things.
The michael shermer show # 294
What is time? Does the past still exist? How did the universe begin and how will it end? Do particles think? Was the universe made for us? Why doesn’t anyone ever get younger? Has physics ruled out free will? Will we ever have a theory of everything? According to Sabine Hossenfelder, it is not a coincidence that quantum entanglement and vacuum energy have become the go-to explanations of alternative healers, or that people believe their deceased grandmother is still alive because of quantum mechanics. Science and religion have the same roots, and they still tackle some of the same questions: Where do we come from? Where do we go to? How much can we know? The area of science that is closest to answering these questions is physics. Over the last century, physicists have learned a lot about which spiritual ideas are still compatible with the laws of nature. Not always, though, have they stayed on the scientific side of the debate.
Continue reading “Free Will and Determinism from a Physicist’s Perspective (Sabine Hossenfelder)” »
Working with hundreds of thousands of high-resolution images, researchers from the Allen Institute for Cell Science, a division of the Allen Institute, put numbers on the internal organization of human cells — a biological concept that has proven incredibly difficult to quantify until now.
The scientists also documented the diverse cell shapes of genetically identical cells grown under similar conditions in their work. Their findings were recently published in the journal Nature.
“The way cells are organized tells us something about their behavior and identity,” said Susanne Rafelski, Ph.D., Deputy Director of the Allen Institute for Cell Science, who led the study along with Senior Scientist Matheus Viana, Ph.D. “What’s been missing from the field, as we all try to understand how cells change in health and disease, is a rigorous way to deal with this kind of organization. We haven’t yet tapped into that information.”
https://youtube.com/watch?v=V8cPdjO3a_U
Find out what the world will be like a million years from now, as well as what kind of technology we’ll have available.
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Timestamps:
0:00 No Physical Bodies.
1:51 Wormhole Creation.
2:44 Travel At Speed Of Light.
3:21 Type 3 Civilization.
4:52 Gravitational Waves.
5:46 Computers the Size of Planets.
6:56 Computronium.
This video explores what would happen if fusion power became a mainstream technology in 2070. Watch this next video about the world in 2070: https://bit.ly/3nYXvjf.
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SOURCES:
• https://www.vox.com/22801265/fusion-energy-electricity-power…earch-iter.
• https://www.iter.org/sci/Fusion.
Continue reading “Fusion Power: 10 Ways It Will Change The World” »
Emily Riehl is rewriting the foundations of higher category theory while also working to make mathematics more inclusive.
Dr. Ben Goertzel.
SingularityNET
The Coming Consciousness Explosion.
Continue reading “The Coming Consciousness Explosion | Dr. Ben Goertzel | SCS2022” »
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Science Asylum video on Schrodinger Equation:
Continue reading “Everything — Yes, Everything — is a SPRING! (Pretty much)” »
Renowned physicist Neil Turok, Holder of the Higgs Chair of Theoretical Physics at the University of Edinburgh, joins me to discuss the state of science and the universe. is Physics in trouble? What hope is there to return to more productive and Simple theories? What is Peter Higgs up to?
Neil Turok has been director emeritus of the Perimeter Institute for Theoretical Physics since 2019. He specializes in mathematical physics and early-universe physics, including the cosmological constant and a cyclic model for the universe.
