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

Made by Kornhaber Brown (www.kornhaberbrown.com)

Previous Episode
https://www.youtube.com/watch?v=p-MNSLsjjdo

5 Ways to Stop a Killer Asteroid
https://www.youtube.com/watch?annotation_id=annotation_3145435923&feature=iv&src_vid=UjmlwdUK4RE&v=7_9vjPa3RBY

5 REAL Possibilities for Interstellar Travel
https://www.youtube.com/watch?v=EzZGPCyrpSU

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Posted in Physics |

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.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

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

The Planck Length and the Origin of Quantum Mechanics
https://www.youtube.com/watch?v=tQSbms5MDvY

Veritasium and the Double Slit Experiment
https://www.youtube.com/watch?v=GzbKb59my3U

Is Quantum Tunneling Faster than Light?
https://www.youtube.com/watch?v=-IfmgyXs7z8

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Posted in Physics |

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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Challenge question solution
http://bit.ly/2aaj4Yt

First Detection of Gravitational Waves
https://www.youtube.com/watch?v=gw-i_VKd6Wo

Nuclear Physics Challenge Question
https://www.youtube.com/watch?v=SqF_Iy0lz_M

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

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.
Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

Calculation Details:
http://bit.ly/29Wkk4m

Challenge Winners:
Antonio Zizola
Zachary Gazzillo
Brook Jilek
Alex McGaw
Suren Gourapura
Amanda Klaeger

Posted in Physics |

Juno to Reveal Jupiter’s Violent Past

July 6th, 2016

What you don’t know about Jupiter can’t hurt you. Or can it? And be sure to check out ShanksFX’s “Jupiter in a Jar” Episode! https://youtu.be/mwvkQK3R2LE

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On July 4th 2016, the Juno spacecraft entered orbit around the planet Jupiter after leaving earth five years ago. The Juno probe will tell us what lies inside the mysterious gas giant and with this information we’ll better understand the formation of our solar system. In this episode, find out how Jupiter wreaked havoc through the solar system during its early formation and how without it the Earth as we know it would not exist.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

The Grand Tack Hypothesis
A low mass for Mars from Jupiter’s early gas-driven migration, Walsh et al. 2011
http://arxiv.org/abs/1201.5177

The Nice Model
Origin of the cataclysmic Late Heavy Bombardment period of the terrestrial planets. Gomes et al. 2005
http://www.nature.com/nature/journal/v435/n7041/full/nature03676.html

Space Time Episode – Planet X Discovered??
https://www.youtube.com/watch?v=xGfv3Oay_pY

Space Time Episode – Is an Ice Age Coming?
https://www.youtube.com/watch?v=ztninkgZ0ws

Previous Episode – Nuclear Physics Challenge Question
https://www.youtube.com/watch?v=tQSbms5MDvY

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James Stanley
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Credits
Late Heavy Bombardment Image – Fahad Sulehria – http://www.novacelestia.com

ProtoPlanetary Disc – Credit: University of Copenhagen/Lars Buchhave via https://www.youtube.com/watch?v=UNPj7e6XJCQ

Posted in Physics |

Nuclear Physics Challenge | Space Time | PBS Digital Studios

June 29th, 2016

Are you ready for some recreational nuclear physics?

Previous Episode on Quantum Tunneling https://www.youtube.com/watch?v=-IfmgyXs7z8

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On this episode of Space Time, we dive into a Challenge Question about Nuclear Physics. This includes traveling back into the phenomenon of Quantum Tunneling and discussing the most radioactive element on the periodic table; Polonium. Let’s get started.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

Challenge Answers

Submit your answers with full work to pbsspacetime@gmail.com by July 13 for a chance to win a Space Time t-shirt.
Make sure you use the subject title “Nuclear Physics Challenge” to be in the running.

Posted in Physics |

Planck’s Constant and The Origin of Quantum Mechanics | Space Time | PBS Digital Studios

June 22nd, 2016

To check out any of the lectures available from Great Courses Plus go to http://ow.ly/K9mK301cRdj and get ready to learn about everything from cooking to calculus.

Previous episode on Quantum Tunneling and the de Broglie Wavelength: https://www.youtube.com/watch?v=-IfmgyXs7z8

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Planck’s Length is the length below which the concept of length loses its meaning. What exactly does that mean and what are the incredible implications this fact has upon our reality? To find out check out this episode of Space Time where Matt digs into the early history of quantum mechanics.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

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Posted in Science |

The Strange Universe of Gravitational Lensing

June 15th, 2016

Is what we see in the night sky a true representation of our universe? Find out about Gravitational Lensing in this episode and even more about it in the documentary that Matt made together with the Museum of Natural History:Distant Quasars: Shedding Light on Black Holes http://www.amnh.org/explore/science-bulletins/(watch)/astro/documentaries/distant-quasars-shedding-light-on-black-holes

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Niels Bohr, a Danish Physicist said “Everything we call real is made of things that cannot be regarded .” Is what we see perceived to be real or is it an illusion?
In the world of our mind’s eye, light travels in a straight line. In reality, spacetime is deflected and magnified through the lens of gravity. Find out how this works and what it allows us to learn about our universe in this episode of Space Time.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

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Posted in Physics |

New Fundamental Particle Discovered?? + Challenge Winners!

June 8th, 2016

Be sure to check out Matt’s AMA at https://www.reddit.com/r/science on Monday, June 13th. He’ll be discussing the upcoming documentary he was a part of Distant Quasars: Shedding Light on Black Holes http://www.amnh.org/explore/science-bulletins/(watch)/astro/documentaries/distant-quasars-shedding-light-on-black-holes

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Scientists at the Large Hadron Collider may have just discovered a new fundamental particle that could change the way we look at the universe. Is this Dark Energy? A giant Neutrino? The big brother of the Higgs Boson? Or could it be the mysterious Graviton? Matt also reveals the answer to the Dark Energy Challenge question and responds to comments from the Ice Age episode. We’ve got a lot going on, so check it out!

Examples from four of the major families of theoretical explanations for the 750 GeV excess: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.150001

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

Challenge Winners:
Pete Benzi astronomianova@gmail.com
Ingrid Skard ingrid.skard@gmail.com
Ryan Brown Ryan.Brown@unb.ca
Nicolai Veliki nickveliki@gmail.com
Sandra Unruh s6saunru@uni-bonn.de
Alex Gravenor blazingkin@gmail.com
Brian Ross bross14@jhmi.edu

You can review a more in-depth explanation of the challenge answers at the link below. The first document is the main question solution described in this video, and the second is the extra credit. The third provides the details of an analytical solution to the integral. Special thanks to Pete Benzi, who is not only one of our winners but also but also generously provided the extra credit solution (incl. the integral) we link to here. His was much more clearly presented than ours!

Main and extra credit solutions: http://bit.ly/1U7QeYu

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Posted in Physics |

Is Quantum Tunneling Faster than Light? | Space Time | PBS Digital Studios

June 1st, 2016

Start your Audible trial today: http://www.audible.com/spacetime

Hello from the other side. In this episode find out how quanta can can move through solid objects.

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Where are you right now? Until you interact with another particle you could be any number of places within a wave of probabilities. This is only one way that quantum mechanics challenges our perception of reality. Matt dives into these counter-intuitive ideas and explains the bizarre phenomenon known as quantum tunneling in this episode of Space Time.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

*Paper referenced in episode is “Measurement of the Single-Photon Tunneling Time” by Steinberg, Kwiat, & Chiao, 1993, Phys. Rev. Lett. 71, 708 and can be found here: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.71.708

Check out the previous episode of Space Time: Is an Ice Age Coming?
https://www.youtube.com/watch?v=ztninkgZ0ws

Posted in Physics |

Is an Ice Age Coming? | Space Time | PBS Digital Studios

May 25th, 2016

Spoiler: no (and climate change has nothing to do with this).

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We’re living in a brief window of time where our planet isn’t frozen underneath a giant layer of glaciers. How much longer will the moderate climate that we’ve come to know as “normal” continue? What causes these dramatic shifts in temperature that thaw our planet and then throw it back into a state of deep freeze? This episode looks at how the changes in our planet’s orbit and rotation impacts our climate.

Written and hosted by Matt O’Dowd

Made by Kornhaber Brown (www.kornhaberbrown.com)

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