Elon Musk on robot dexterity and durability

October 24th, 2026

Elon discusses difficult practical considerations in developing robots that can do the same work that humans can. Our fingers can heal. Robots’ can’t (so far). Our fingers can move, sense and react in complex and subtle ways also.

Posted in Uncategorized |

He Turned Antarctica Into a Ghost Particle Telescope. And Won a Nobel Prize

October 22nd, 2026

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The 2026 Nobel Prize in Physics went to Francis Halzen for helping turn a cubic kilometer of Antarctic ice into a telescope capable of detecting some of the universe’s most elusive particles: neutrinos. Discover how IceCube uses these ghost particles to trace cosmic rays back to their origins, reveal hidden supermassive black holes, and open an entirely new window on the universe.

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Hosted by Matt O’Dowd
Written by Matt O’Dowd
Post Production by Leonardo Scholzer
Directed by Andrew Kornhaber
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Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: Mike Martin

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
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Mark Rosenthal
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Morgan Hough
Peter Barrett
Vinnie Falco

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Ethan Cohen
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Hypernova
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Scott Gray
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Антон Кочков

Gamma Ray Burst
Alex Gan
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Ayden Miller
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SamSword
Sandhya Devi
Sean Owen
Shane Calimlim
Terje Vold
Terrance Cennon
Thomas Dougherty
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WILLIAM HAY III
Zac Sweers

Posted in Physics |

How Many Times Can Space Be Divided?

October 21st, 2026

How many times can you cut a distance in half before you reach the smallest possible scale of space? After just 115 halvings, we reach the Planck length, where spacetime may become a quantum realm of fluctuations, virtual black holes, and wormholes, the realm where our understanding of physics breaks down.

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Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

There Are 1 Quadrillion Stars Behind This Grain of Sand

October 19th, 2026

There are nearly 10,000 galaxies and 1 quadrillion stars in a patch of sky no bigger than a grain of sand. How on Earth did we figure this out?
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Hosted by Matt O’Dowd
Written by Richard Dyer & Matt O’Dowd
Post Production by Leonardo Scholzer
Directed by Andrew Kornhaber
Associate Producer: Bahar Gholipour
Executive Producer: Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: Mike Martin

Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

Was the delayed-choice quantum eraser debunked?

October 16th, 2026

The delayed-choice quantum eraser experiment itself was not proven fake or invalid, but the popular claim that it rewrites the past or proves retrocausality has been thoroughly debunked.

What Was Debunked (The Retrocausality Claim)

• No Time Travel: Early sensationalized descriptions claimed a later measurement could go back in time to change whether an earlier photon acted as a wave or a particle. [1] (https://www.youtube.com/watch?v=s5yON4Gs3D0), [2] (https://www.youtube.com/watch?v=RQv5CVELG3U)
• Data Sorting Illusion: The apparent interference patterns do not magically appear on the main screen on their own. They only show up later when experimenters use the measurement results of the entangled partner photons to post-select and sort subsets of the original data. [1] (https://www.youtube.com/watch?v=sc7FlWUAnzA), [2] (https://arvinash.com/boy-was-i-wrong-how-the-delayed-choice-quantum-eraser-really-works/), [3] (https://www.facebook.com/Deepspacerevealed/videos/the-experiment-that-proved-einstein-was-wrong-quantum-eraser/1316436190581476/)
• Overall Randomness: If you look at all the raw data collected at the main screen together without sorting it by the entangled detector outcomes, you see no interference pattern at all. [1] (http://backreaction.blogspot.com/2021/10/the-delayed-choice-quantum-eraser.html), [2] (https://www.facebook.com/Deepspacerevealed/videos/the-experiment-that-proved-einstein-was-wrong-quantum-eraser/1316436190581476/)

What is Still True (The Physics)

• Real Quantum Hardware: Actual physical implementations of the Scully-Drühl delayed-choice quantum eraser—including modern demonstrations on platforms like IBM and IonQ processors—continue to confirm standard quantum mechanics. [1] (https://www.facebook.com/Deepspacerevealed/videos/the-experiment-that-proved-einstein-was-wrong-quantum-eraser/1316436190581476/)
• Complementarity: The experiment accurately demonstrates quantum entanglement and complementarity (that “which-way” information and wave interference cannot be observed simultaneously) without breaking causality. As discussed on Physics Stack Exchange, the presence of path information in the entangled system prevents interference rather than any mystical erasure of the past. [1] (https://physicsworld.com/a/the-quantum-eraser-doesnt-rewrite-the-past-it-rewrites-observers/), [2] (https://physics.stackexchange.com/questions/255127/is-my-understanding-of-the-delayed-choice-quantum-eraser-correct), [3] (https://www.facebook.com/Deepspacerevealed/videos/the-experiment-that-proved-einstein-was-wrong-quantum-eraser/1316436190581476/)

Posted in Quantum Physics |

Is There Only ONE Electron In the Universe?

October 15th, 2026

What if there’s only one electron in the entire universe? It sounds crazy, but when you follow that rabbit hole it reveals something even bigger.

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Spacetime is a production of Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2026 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

The Impossible Equation Behind String Theory’s 26 Dimensions

October 8th, 2026

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Can adding every positive whole number really give you -1/12? We explore how physicists extract meaningful finite values from infinite sums, and how this strange mathematical technique shows up in the measurable Casimir effect and even helps explain why bosonic string theory requires 26 dimensions.
.
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End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

Space Time Was Made Possible In Part By:

Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

Is a Moving Arrow NOT Actually Moving?

October 7th, 2026

A moving arrow is at rest, or so claims Greek philosopher Zeno. The paradox may tell us something important about quantum mechanics.

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Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Hypernova
Daniel Muzquiz
Alex Kern
Ben Delo
Chuck Zegar
Dean Galvin
Donal Botkin
Gregory Forfa
Jeff White
John R. Slavik
Massimiliano Pala
PAUL C PEDERSEN
Scott Gorlick
Scott Gray
Spencer Jones
Vlad Shipulin
Zachary Haberman
Антон Кочков

Gamma Ray Burst
Jason Bowen
Aaron Pinto
Almog Cohen
Arko Provo Mukherjee
Austin Richards
Ayden Miller
Bert Whetstone
Bradley Jenkins
Bradley Ulis
Brandon Lattin
Cal Harrington
Cal Stephens
Cali Chuck
Chris Liao
Christopher Wade
Collin Dutrow
Craig Falls
Craig Stonaha
Dan Warren
Daniel Donahue
Daniel Jennings
Darrell Stewart
David Giltinan
David Johnston
Diana S Polijar
Donovan King
Doyle Vann
Eric Kiebler
Eric Raschke
Eric Schrenker
Faraz Khan
Frederic Simon
Harsh Khandhadia
Isaac Suttell
James Trimmier
Jeb Campbell
Jeff Harris
Jeremy Soller
Jerry Thomas
jim bartosh
John Anderson
John De Witt
John Funai
John H. Austin, Jr.
John Mieras USN Ret
Joseph Salomone
Junaid Ali
Justin Zheng
Kacper Cieśla
Kent Durham
Koen Wilde
Kurtis Kemple
Kyle Atkinson
Lori Ferris
Marcelo Garcia
Marion Lang
Mark Daniel Cohen
Mark Delagasse
Matt Kaprocki
Matthew Johnson
Michael Barton
Michael Clark
Michael Lev
Michael Purcell
Michael Spallino
Mikk Mihkel Nurges
Nicolas Katsantonis
Nils Anderson
Onemind
Paul Wood
Reuben Brewer
Richard Steenbergen
Robert DeChellis
Ross Kennedy
Ross Story
Russell Moore
SamSword
Sandhya Devi
Sean Owen
Shane Calimlim
Terje Vold
Terrance Cennon
Thomas Dougherty
Tybie Fitzhugh
WILLIAM HAY III
Zac Sweers

Posted in Physics |

Are You Made of Light?

October 5th, 2026

According to Einstein, you may in fact, be trapped light.

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Big Bang
Alexander Tamas
Filip Rolenec
Juan Benet
Kenneth See
Mark Rosenthal
MATTHEW OCKO
Morgan Hough
Peter Barrett
Vinnie Falco

Supernova
Ethan Cohen
Glenn Sugden
Grace Biaelcki
Justin Lloyd
Mark Heising
Rad Antonov
Shaun Williams
Stephen Wilcox
Tristan Lucian Claudius Aurelius Tyacke

Posted in Physics |

How AI Takeover Could Happen In 2 Years: A Scenario

October 2nd, 2026

Posted in Artificial Intelligence |

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