Features the most insightful and informative videos on all areas of the sciences, history, philosophy, and the arts, with an additional focus on the values of Humanism, Freethought and methodological Skepticism.
If there are any freely available programs or shows which you know of that I missed, please let me know about them.
What Is The Universe Expanding Into?
"Since astronomers know that the Universe is expanding, what’s it expanding into? What’s outside of the Universe?"
The short answer is that this is a nonsense question, the Universe isn’t expanding into anything, it’s just expanding.
The definition of the Universe is that it contains everything.
If something was outside the Universe, it would also be part of the Universe too.
Outside of that? Still Universe. Out side of THAT? Also more Universe. It’s Universe all the way down.
But I know you’re going to find that answer unsatisfying, so now I’m going to break your brain.
via Universe Today.
Neil deGrasse Tyson on Cosmic Bruises and the Multiverse
Have other universes collided with our universe, leaving cosmic “bruises” on the cosmic background radiation, and what does that imply about our expanding universe? In answering a fan’s Cosmic Query, astrophysicist Neil deGrasse Tyson and Eugene Mirman ponder the possibility of cosmic collisions and discuss the physics of the multiverse.
via Star Talk Radio.
All of the energy in the universe is…
The energy in the universe never increases or decreases — but it does move around a lot. Energy can be potential (like a stretched-out rubber band waiting to snap) or kinetic (like the molecules that vibrate within any substance). And though we can’t exactly see it, every time we cook dinner or shiver on a cold night, we know it’s there. George Zaidan and Charles Morton get excited about energy.
Lesson by George Zaidan and Charles Morton, animation by Pew36 Animation Studios.
via TED Education.
What Is The Evidence For The Big Bang?
Almost all astronomers agree on the theory of the Big Bang, that the entire Universe is spreading apart, with distant galaxies speeding away from us in all directions.
Run the clock backwards to 13.8 billion years ago, and everything in the Cosmos started out as a single point in space.
In an instant, everything expanded outward from that location, forming the energy, atoms and eventually the stars and galaxies we see today.
But to call this concept merely a theory is to misjudge the overwhelming amount of evidence.
There are separate lines of evidence, each of which independently points towards this as the origin story for our Universe.
via Fraser Cain.
Ask the Experts #22 - Michael Answers Your Questions
1. Could we annihilate a black hole by feeding it a bunch of anti matter? —Benoit Charland
2. If nothing can escape from a black hole, why can its magnetic field? —Simeon Petrov
3. Is a black hole 2 dimensional and flat or is it a spherical shape? —TrueTydin
via Space Lab.
Tara Shears - Antimatter: Why the anti-world matters
Antimatter, an identical, oppositely charged version of normal matter, is one of the most mysterious substances in the Universe and very little of it survives today. Tara Shears examines the progress being made towards understanding this elusive version of matter, and explains the latest results from LHCb and elsewhere.
Why is the universe the way it is? | James May meets Martin Archer
Martin Archer finally gets to squeeze James May’s head as they ponder over the possibility of a parallel universe, why the universe is the way it is, and how hot the big bang actually was…
via Head Squeeze.
Neil deGrasse Tyson vs. Young Earth Creationism
A fan reports that the Creation Museum cites an old, pre-Hubble discrepancy about the age of the oldest stars (18 billion years old) and the age of the universe (15 billion years old) as evidence against science and for the Young Earth Creationism belief that the universe is just thousands of years old. Watch astrophysicist Neil deGrasse Tyson and Eugene Mirman debunk their claim, discussing why creationism shouldn’t be considered real science, and also how we can sometimes end up with mistakes in scientific data that lead to blunders like “fast tachyons.”
via Star Talk Radio.
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Instant Egghead #49 - What Does the Universe Sound Like?
With sensitive instruments and some creative translations, astronomers can derive the sounds of a silent universe. Scientific American contributor Sophie Bushwick explains.
via Scientific American.
Neil deGrasse Tyson: There Is No Speed of Dark
What is the speed of dark? And is that even a legitimate question? Watch Neil deGrasse Tyson and Eugene Mirman discuss this Cosmic Query and separate the scientific from the philosophical.
via Star Talk Radio.
Ask the Experts #21 - Gabe Answers Your Questions
1. If the supermassive black hole in the center of our galaxy were to suddenly become a powerful quasar, what would it mean to life here on earth? —Barrows0re
2. If nothing comes out of black holes, how come Gamma rays shoot from the poles? —Mokhtar MOHAMMADIAN
3. How does Hawking radiation make black holes smaller to the point of disappearing —Jon Therkildsen
Gabe Perez-Giz is a research scientist at New York University’s Center for Cosmology & Particle Physics.
Find out more about Gabe: http://goo.gl/yYSCa
WATCH Gabe’s lecture on black holes at New York University: http://goo.gl/garz2
via Space Lab.
Turning Sewage Into Power AND the Origins of the Ginger Gene! - IFLScience
This week on IFLS, sewage is transformed into a battery, the ginger gene can be traced back to it’s origins, and what started the Big Bang?!
Read more about this week’s stories:
Water on Mars: http://www.space.com/22854-mars-water-curiosity-rover-discoveries.html
Methane on Mars: http://www.sciencedaily.com/releases/2013/09/130922222800.htm
4D black hole: http://www.nature.com/news/did-a-hyper-black-hole-spawn-the-universe-1.13743
Small animals perceive time faster: http://www.bbc.co.uk/news/science-environment-24078179
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A trip through space to calculate distance - Heather Tunnell
Imagine two aliens racing across outer space to their moon. Who can we deem the fastest alien? With DIRT — or the equation Distance = Rate x Time — we can calculate their rates, using the distance they traveled and the time they took. Heather Tunnell explains how to use this helpful equation to determine which of our alien friends is truly faster.
via TED Education.
La Edad de la Tierra - (El Universo Parte 6)
Donde explicamos cuales metodos utilizamos para determinar la edad de la cosas y refutamos algunos mitos relacionados con este quehacer.
Traducción del video original por potholer54: The Age of Our World Made Easy https://www.youtube.com/watch?v=w5369-OobM4
Carolin Crawford - The Age of the Universe
Detailed observations of galaxies, clusters, and the fine structures in the cosmic microwave background have refined the age of the Universe to 13.75 billion years. But they have also revealed the unexpected presence of dark energy, causing a huge paradigm shift in modern cosmology. For all download and transcript versions of this lecture, please visit the event’s page on the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/the-age-of-the-universe Read more at http://fora.tv/2013/02/06/Carolin_Crawford_-_The_Age_of_the_Universe#2wxVW8fx934XMMQe.99
via Gresham College.