Page 31 of 44

Time Crystals!

March 15, 2017 / / 0 Comments

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In this episode of the Space Time Journal Club Matt discusses how two independent research teams created their own Time Crystals, a form of matter that breaks time translational symmetry and could be used in quantum computers.

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Previous Episode
Race to a Habitable Exoplanet – Time Warp Challenge
https://www.youtube.com/watch?v=_tmMKQ4kp_I

Hosted by Matt O’Dowd
Written by Matt O’Dowd and Alexandra Yep
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

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Comments answered by Matt:

Solano Felício
https://www.youtube.com/watch?v=h871oE5QkTU&lc=z13fen0gcsy2cxuta225srzj3wefhzlex

Matthew Pick
https://www.youtube.com/watch?v=h871oE5QkTU&lc=z12uih5qdprmt314t04cjtqioveye1l4iek

WarriorofCathar
https://www.youtube.com/watch?v=h871oE5QkTU&lc=z13oc1dofprgijzft22if1igikrhgzll2

The Race to a Habitable Exoplanet – Time Warp Challenge | Space Time

March 8, 2017 / / 0 Comments

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You’ve discovered a habitable exoplanet, but so has an an evil interplanetary mining corporation. Can you get to the planet before they strip it bare and leave it unsuitable for life? You’re going to need a ship, the Lorentz Transformation and the Wait Equation. Hang on, it’s going to be a bumpy ride.

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With the discovery of Trappist-1 and its surrounding exoplanets it’s all the more important that we unlock the secrets of long-distance space travel. In order to do that we have to better understand the relationship between space and time and understand how moving faster than the speed of light is the same as traveling back in time.

Previous Episode
The Treasures of Trappist-1
https://www.youtube.com/watch?v=h871oE5QkTU

The Geometry of Causality
https://www.youtube.com/watch?v=1YFrISfN7jo

Is the Warp Drive possible?
https://www.youtube.com/watch?v=94ed4v_T6YM

Tengu spaceship image and ExoPlanet world Credit CCP: Eve Online

Written and Hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
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The Treasures of Trappist-1 | Space Time

March 2, 2017 / / 0 Comments

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE

Get 15% off your next purchase at https://www.legalzoom.com/spacetime. LegalZoom is not a law firm or a substitute for the advice of an attorney.
Can humanity survive on one of the seven earth-like Trappist-1 planets?
And be sure to check out Physics Girl’s Trappist episode right here https://youtu.be/lK2iJe7AM_Q

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Last week, seven earth-like planets were discovered orbiting a Red Dwarf star 39 light years away. Each one could be capable of supporting life.

Previous Episode
The Eye of Sauron Reveals a forming Solar System
https://www.youtube.com/watch?v=TQZyaMRp7_0

Hosted by Matt O’Dowd
Written by Alexandra Yep and Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

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Comments answered by Matt:

Aaron Craig
https://www.youtube.com/watch?v=CoQE5J346mU&lc=z13ptbqxilq2wdt5204cjj1rhnqpvr55ad0

s ss
https://www.youtube.com/watch?v=TQZyaMRp7_0&lc=z12qjpazrw3lhdtmn22mxf2znoidgfhrg04

Slikrix
https://www.youtube.com/watch?v=TQZyaMRp7_0&lc=z13euz3jyxyiy5yef23mhlprwpmtxnpkm

The Eye of Sauron Reveals a Forming Solar System!

February 22, 2017 / / 0 Comments

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Fomalhaut is a massive young star surrounded by a ring of dust debris that can tell us a great deal about the formation of our own solar system. Get your first two months of CuriosityStream free by going to http://curiositystream.com/spacetime and using the promo code “spacetime”.

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Fomalhaut is an awe-inspiring star that could unlock many mysteries concerning how our own solar system formed.

Previous Episode
Telescopes of Tomorrow
https://www.youtube.com/watch?v=CoQE5J346mU

Written by Alexandra Yep and Matt O’Dowd
Hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Sources:
A Planetary System as the Origin of Structure in Fomalhaut’s Dust Belt
Kalas, Graham & Clampin (2005)
https://arxiv.org/abs/astro-ph/0506574

STIS Coronographic Imaging OF Fomalhaut: Main Belt Structure and teh Orbit of Fomalhaut b
Kalas, Graham ,Fitzgerald & Clampin (2013)
http://iopscience.iop.org/article/10.1088/0004-637X/775/1/56

Infrared Non-detection of Fomalhaut b — Implications for the Planet Interpretation
Janson, Carson, Lafreniere, Spiegel, Bent & Wong (2012)
https://arxiv.org/abs/1201.4388

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Telescopes of Tomorrow

February 15, 2017 / / 0 Comments

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Super telescopes are coming! Thanks to The Great Courses Plus for sponsoring this episode of Space Time. Try a 30 day trial of The Great Course Plus at http://ow.ly/Fxt1306GoOa NASA’s Hubble Space Telescope is now 27 years old, but a new generation of telescopes are on their way. Find out about the James Webb Space Telescope, the Giant Magellan Telescope and the Large Synoptic Survey Telescope.

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The telescopes of tomorrow will see in infrared and ultraviolet. They will peer through space and scan across time. They will allow us to find new supernovae, spot potentially hazardous asteroids, better understand dark energy and peer into the earliest moments of space time.

Previous Episode
The Geometry of Causality
https://www.youtube.com/watch?v=1YFrISfN7jo

Written by Alexandra Yep and Matt O’Dowd
Hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Resources:
The James Webb Space Telescope https://jwst.nasa.gov
The Giant Magellan Telescope https://www.gmto.org/
The Large Synoptic Survey Telescope https://www.lsst.org

Comments Answered by Matt:

Louis Anthes
https://www.youtube.com/watch?v=1YFrISfN7jo&lc=z12pcp34szazy1qqz04cgvpg0sjnivjq0to0k

QED
https://www.youtube.com/watch?v=1YFrISfN7jo&lc=z131xd1xbrihsrdm3231i5fr0sz1yb2ff

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Eric Jackson

The Geometry of Causality

February 2, 2017 / / 0 Comments

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Using geometry we can not only understand, but visualize how causality dictates the order of events in our universe. Start your Audible trial today at http://www.audible.com/spacetime

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In this episode we dive deeper into the relationship between space and time and explore how we can geometrically map the causality of the universe and increase our understanding of how time and distance relate to one another.

Important Reference Episodes:
The Speed of Light is not about Light (1:16)
https://www.youtube.com/watch?v=msVuCEs8Ydo

Can You Trust Your Eyes in Space Time? (1:16)
https://www.youtube.com/watch?v=P4rW_pPbD-U

Previous Episode:
Why Quasars are so Awesome
https://www.youtube.com/watch?v=3TZEp_n3eIc&t=63s

Written and hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Comments Answered by Matt:

Michael Lloyd
https://www.youtube.com/watch?v=-q7EvLhOK08&lc=z135yvabnnr2t1cfv22azxuyiwmux5xai04

Jose Hernandez
https://www.youtube.com/watch?v=-q7EvLhOK08&lc=z13zzv5wmvrhe5hpn04chzwbnoznthg4j1w

Joan Eunice
https://www.youtube.com/watch?v=3TZEp_n3eIc&lc=z13ncrdwnpj0wfplk23exlqwqnauvkpc

Mike Cammiso
https://www.youtube.com/watch?v=3TZEp_n3eIc&lc=z13fxdlopsylwh5f122rh3oycpyxjr1pn04

Bikram Sao
https://www.youtube.com/watch?v=3TZEp_n3eIc&lc=z12uytbouwb0t3pym04cg3szjmqyeffzvlo0k

Cinestar Productions
https://www.youtube.com/watch?v=3TZEp_n3eIc&lc=z121zlv51n3ls5m5b04cjpjwcpavu5xok3s

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Jessica Fraley
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Loro Lukic
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Will and Sonja Marple

Why Quasars are so Awesome | Space Time

January 26, 2017 / / 0 Comments

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Quasars … the most metal thing in the universe.

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When Quasars were first discovered the amount of light pouring out of such a tiny dot in space seemed impossible. A hysterical flurry of hypothesizing followed: swarms of neutron stars, alien civilizations harnessing their entire galaxy’s power, bright, fast-moving objects being ejected by our own galaxy’s core. But by the 1980’s we were converging on the most awesome explanation. It goes a little like this: Take a black hole of millions to billions times the mass of the sun. Where from? It turns out every decent-sized galaxy has one at its core. Now drive gas into the galactic core. One way this can happen is when galaxies merge and grow. That gas descends into the waiting black hole’s gravitational well and gains incredible speed on the way. It is swept up in a raging whirlpool around the black hole that we call an accretion disk, where its energy of motion is turned into heat. The heat-glow of the accretion disk is so bright that we can see quasars to the ends of the universe.

Previous Episode:

The Phantom Singularity
https://www.youtube.com/watch?v=-q7EvLhOK08

Written and hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:

Big Bang
Henry Van Styn
David Nicklas
Giorgio P.

Quasar
Jelle Slaets
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Luna IT Solutions

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Joe
Chuck Zegar
Craig Peterson
Mahan Kaur
Jordan Young
Ratfeast
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Thanks to our Patreon Gamma Ray Burst Supporters:
Daniel Lyons
Avan & Kyan Griggs
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The Phantom Singularity | Space Time

January 19, 2017 / / 0 Comments

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Be sure to check out the Infinite Series episode Singularities Explained https://youtu.be/0pIRibivolA or How I Learned to Stop Worrying and Divide by Zero.

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Isaac Newton’s Universal Law of Gravitation tells us that there is a singularity to be found within a black hole, but scientists and mathematicians have found a number of issues with Newton’s equations. They don’t always accurately represent reality. Einstein’s General Theory of Relativity is a more complete theory of gravity. So does using the General Theory of Relativity eliminate the singularity? No. Not only does it concur with Newton’s Universal Law of Gravitation but it also reveals a second singularity, not at the center of the black hole but at the event horizon.

Previous Episode:

The EM Drive: Fact or Fantasy
https://www.youtube.com/watch?v=hqoo_4wSkdg

Written and hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Comments Answered by Matt:

Joshua Hillerup
https://www.youtube.com/watch?v=hqoo_4wSkdg&lc=z12efr4gyvmxf3r1e22ucfv5burmibno304

Aaron Schofield
https://www.youtube.com/watch?v=hqoo_4wSkdg&lc=z124efx51vnovn5kc234vppxoxaft3uft

Stephen Bachman
https://www.youtube.com/watch?v=hqoo_4wSkdg&lc=z132i1xoltauujs2a23zwxlrdsftghtvm

Matthew Scatterty
https://www.youtube.com/watch?v=hqoo_4wSkdg&lc=z13rel4r1qvbidayv04chrfxzxv4glwql20

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The EM Drive: Fact or Fantasy?

January 12, 2017 / / 0 Comments

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Because you demanded it … we break down the EM Drive!

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In the first Space Time Journal Club, Matt O’Dowd discusses Eagleworks Labs recent paper on the EM Drive and evaluates what their findings really tell us.

“Measurement of Impulsive Thrust from a Closed Radio-Frequency Cavity in Vacuum”
White, March, Lawrence, Vera, Sylvester, Brady & Bailey 2016
Abstract: http://arc.aiaa.org/doi/10.2514/1.B36120
PDF: http://arc.aiaa.org/doi/pdf/10.2514/1.B36120

Written and hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Comments Answered by Matt:

Harlan Kempf
https://www.youtube.com/watch?v=Ttwl_zH_DZ8&lc=z13sdncwxpzpejj3f23ohxsz5ubds3ppf04

Sun Power Guru
https://www.youtube.com/watch?v=Ttwl_zH_DZ8&lc=z13atterhtvmybvpv04cefkrfuu0gvcgdc4

Richy Rich
https://www.youtube.com/watch?v=Ttwl_zH_DZ8&lc=z13odxehmyveftz2d22ytbjopunwdvfdo

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How to See Black Holes + Kugelblitz Challenge Answer

January 4, 2017 / / 0 Comments

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Find out how scientists are mapping the black holes throughout the Milky Way and beyond as well as the answer to the Escape the Kugelblitz Challenge Question. Were you able to save humanity?

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Quasars, X-ray Binaries and Supermassive voids at the center of our galaxies … black holes take many forms. In this episode Matt tells us what these different types of black holes are and how scientists are using VLBI, Very Long Baseline Interferometry, to map the different black holes throughout the known universe.

Resolving Microlensing Events with Triggered VLBI
Karami, Broderick, Rahvar, and Reid, 2016, The Astrophysical Journal, 833, 169
http://phys.org/news/2016-12-black-holes-years-method.html
https://arxiv.org/abs/1601.05801

Last Episode – Have They Seen Us?
https://www.youtube.com/watch?v=Ttwl_zH_DZ8

The Escape the Kugelblitz Challenge Question
https://www.youtube.com/watch?v=v3hd3AI2CAA&t=5s

Written and hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Grayson Blackmon
Made by Kornhaber Brown (www.kornhaberbrown.com)

Challenge Winners:
Pete Benzi
Srikanth Reddy
Dominique
Jeremy Elser
Mathieu Pütz
Scott Seaver

Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:
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Quasar
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Joe

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