Self-Replicating Robots and Galactic Domination

September 14th, 2016

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We’ll soon be capable of building self-replicating robots. This will not only change humanity’s future but reshape the galaxy as we know it.

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Should we Build a Dyson Sphere?
https://www.youtube.com/watch?v=jW55cViXu6s

Self-assembling robots are referred to as von Neumann machines after the man responsible for originally proposing them, John von Neumann. Since then, the potential of these machines and their ability to proliferate throughout known space has made galactic colonization seem not only possible but perhaps inevitable.

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Made by Kornhaber Brown (www.kornhaberbrown.com)

References:
von Neumann, John The Theory of Self-reproducing Automata, Urbana, IL: Univ. of Illinois Press. ed. A. Burks, 1966

Robert A. Freitas Jr., Ralph C. Merkle, Kinematic Self-Replicating Machines, Landes Bioscience, Georgetown, TX, 2004;
http://www.MolecularAssembler.com/KSRM.htm

Robo3D R1 printing an upgrade for itself
https://www.youtube.com/watch?v=1e_Bfo1fD3o


The Best and Worst Prediction in Science

September 8th, 2016

The best and worst predictions in science are both based on the same underlying physics
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Special thanks to:
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Virtual particles are a way of talking about fields and their interactions as though particles are doing all the work. This is why there is some controversy around using the term ‘virtual particles’. Some people think the term is useful, especially since in calculating with Feynman diagrams you draw all the particle interactions that are possible (and then do the calculations to get the right answer). While others feel this terminology is misleading because virtual particles don’t behave like real particles and can’t be observed.


Is There a Fifth Fundamental Force? + Quantum Eraser Answer

September 7th, 2016

Has a fifth fundamental force been discovered and how will this effect our understanding of the universe?

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Quantum Eraser Challenge
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Previous Episode
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New Fundamental Particle Discovered
https://www.youtube.com/watch?v=KFOgIijPWGY

A laboratory in Hungary has has witnessed a startlingly strange reaction between Beryllium-8 atoms. It seems to point to the existence of a fundamental force beyond the four we already know. And this new force may have something to do with dark matter.

Nature Article on Radioactive Decay Anomaly
http://www.nature.com/news/has-a-hungarian-physics-lab-found-a-fifth-force-of-nature-1.19957

The associated Feng et al. 2016 paper:
http://arxiv.org/abs/1604.07411

Krasznahorkay et al. 2015 first report the anomaly
https://arxiv.org/abs/1504.01527

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Should We Build a Dyson Sphere? | Space Time | PBS Digital Studios

August 24th, 2016

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The Kepler telescope recently noticed a strange partial eclipse that some have speculated could be a Dyson Sphere. Are Dyson Sphere’s possible? Are they practical? What other alternatives to futuristic energy capture do we have to choose from? Why not a kugelblitz – a swarm of black hole powered engines?

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PBS Space Time’s Interstellar Travel Episode
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SciShow Kugelblitz episode
https://www.youtube.com/watch?v=gNL1RN4eRR8

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David Stagg
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Quantum Eraser Lottery Challenge

August 17th, 2016

Matt challenges you to use quantum physics to win the lottery. Are you up to the task?

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The Quantum Eraser experiment seems to show that information can travel backwards in time. On today’s episode of Space Time, we are going to create a time-traveling communication device and use it to cheat on the lottery!

Here’s Your Challenge question:
Why am I going to be sadly disappointed after turning on my invention? I do get a signal – nice work future me – and that signal DOES contain the interference patterns from my future choices with perfect fidelity. But for some reason I can’t read the numbers. What went wrong?

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Is Most Published Research Wrong?

August 11th, 2016

Mounting evidence suggests a lot of published research is false.
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Resources used in the making of this video:

Why Most Published Research Findings Are False:
http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.0020124

Trouble at the Lab:
http://www.economist.com/news/briefing/21588057-scientists-think-science-self-correcting-alarming-degree-it-not-trouble

Science isn’t broken:
http://fivethirtyeight.com/features/science-isnt-broken/#part1

Visual effects by Gustavo Rosa


How the Quantum Eraser Rewrites the Past | Space Time | PBS Digital Studios

August 10th, 2016

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Causality is meant to move in one direction: forward. But the Quantum Eraser experiment seems to reverse causality. How and why can this happen and what are the implications of this experiment on how we understand Quantum Mechanics and our greater universe?

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A Delayed Choice Quantum Eraser
Kim, Yu, Kulik, Shih & Scully, 2000, Physical Review Letters v.84 p.1
http://arxiv.org/abs/quant-ph/9903047v1

Previous Episode on Can We Survive the Destruction of the Earth? ft. Neal Stephenson
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Gamma Ray Bursts by In a Nutshell
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Episode written and hosted by Matt O’Dowd

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MirceaKitsune
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tsjoencinema
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TimmacTR
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kaleb tandberg
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The deathless face of the unborn mind
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Error 404: Hodor Not Found
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Can We Survive the Destruction of the Earth? ft. Neal Stephenson

August 3rd, 2016

Science fiction author and futurist Neal Stephenson helps Matt determine what humanity needs to do in order to survive the destruction of our own planet. You can find Neal’s book Seveneves right here http://www.nealstephenson.com/seveneves.html

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What do we do to protect ourselves from extinction level events? And what if some of those events are unavoidable? Can we survive adrift in space? Find out in this episode of Space Time.

Written and hosted by Matt O’Dowd

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5 Ways to Stop a Killer Asteroid
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5 REAL Possibilities for Interstellar Travel
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The Quantum Experiment that Broke Reality | Space Time | PBS Digital Studios

July 27th, 2016

The double slit experiment radically changed the way we understand reality. To check out any of the lectures available from The Great Courses Plus go to http://ow.ly/QVaz302duhX and get ready to learn about everything from cooking to calculus.

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The double slit experiment radically changed the way we understand reality. Find out what the ramifications of this experiment were and how we can use it to better comprehend our universe.

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Previous Episode https://www.youtube.com/watch?v=eJ2RNBAFLj0

The Planck Length and the Origin of Quantum Mechanics
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Veritasium and the Double Slit Experiment
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Is Quantum Tunneling Faster than Light?
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The Future of Gravitational Waves

July 20th, 2016

Find out how gravitational waves are allowing us to unlock the secrets behind black hole formation and growth.

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First Detection of Gravitational Waves
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On September 14th, 2015 LIGO announced the first detection of a gravitational wave. This was hailed at the time as the dawn of gravitational wave astronomy. However that’s only true if the we ever detect another gravitational wave. Now we have. On December 26th LIGO again observed the merger of two different black holes.
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