Latest BE-4 engine test footage

Latest BE-4 engine test footage where we exceeded our Isp targets. We continue to exercise the deep throttling of our full scale 550,000 lbf BE-4, the reusability of our hydrostatic pump bearings and our stable start/stop cycles. More to follow from ongoing tests.

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Reusable Rockets & Metallic Hydrogen

In this episode we’ll be looking at improvements to rocket systems, with the main focus on re-usability. We will also look a bit deeper at rocketry principles, at some other improvements and alternative uses for rockets, such as oceanic launches, and discuss Metallic Hydrogen, a potential game changing fuel.

Isaac Silvera papers
2010 Metallic Hydrogen basic theory paper
https://dash.harvard.edu/bitstream/handle/1/9569212/Silvera_Metallic.pdf?sequence=2
2011 NASA Phase 1 Final Report:
https://www.nasa.gov/sites/default/files/files/Silvera_FinalReport.pdf
2017 Harvard Gazette interview with Silvera:
http://news.harvard.edu/gazette/story/2017/01/a-breakthrough-in-high-pressure-physics/

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Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/reusable-rockets
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Music by
Intro/Outro:
Sergey Cheremisinov
“Sirius”
Kai Engel
“Endless Story about Sun and Moon”
Koalips
“Kvazar”
Frank Dorittke
“Morninglight”
Kai Engel
“December”
Kevin MacLeod
“Spacial Winds”
Lombus
“Amino”

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Cyborgs

We examine the concepts of cyborgs, clarify what they are and how they differ from bionics, androids, and similar concepts. We also discuss some of the lesser known options for augmentation and explore the notion of man-machine integration.

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Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/cyborgs
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Music by:
Dexter Britain
“Seeing the Future”
Lombus
“Hydrogen Sonata”
Sergey Cheremisinov
“Labyrinth”
Kai Engel
“Endless Story about Sun and Moon”
Frank Dorittke
“Morninglight”
Koalips
“Kvazar”
Kevin MacLeod
“Spacial Winds”
Lombus
“Amino”
Brandow Liew
“Into the Storm”

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The Nuclear Option

While potentially dangerous, nuclear powered spacecraft offer far faster and more efficient spacecraft than traditional chemical rockets. Today we will examine the various means of using atomic power sources to propel spacecraft, both to get off Earth and to travel to other stars.

See more of Fragomatik’s animations: https://www.youtube.com/user/fragomatik

Visit Winchell Chung’s Atomic Rockets: http://www.projectrho.com/public_html/rocket/index.php

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Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/the-nuclear-option
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Music by:
Sergey Cheremisinov, “Sirius”
Kai Engel, “Endless Story about Sun and Moon”
Koalips, “Kvazar”
Frank Dorittke, “Morninglight”
Kai Engel, “December”
Kevin MacLeod, “Spacial Winds”
Lombus, “Amino”

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Infinite Improbability Issues

Science Fiction loves the Many Worlds Interpretation of Quantum Mechanics, but its implication go far beyond basic Alternate Universes and histories. Today we will explore some of the mind-bending consequences of this theory.

ANU Quantum Random Numbers Server
https://qrng.anu.edu.au

Paper by Andrei Linde and Vitaly Vanchurin:
“How many universes are in the multiverse?”
https://arxiv.org/pdf/0910.1589.pdf

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Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/infinite-improbability-issues
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Music by:
Dan McLeod, “The Eagles Journey of the Sorcerer Remix”, “Calculations”, “Mysterious Universe”, “Vacuum”, “Nova Caustica”, “The End”
Sergey Cheremisinov, “Labyrinth”
Lombus, “Amino”

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Industrializing the Moon

We return to the Moon to explore ways to go beyond simple Lunar Bases to a full-fledged productive colony that can help us travel to other worlds and expand our own.

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Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/industrializing-the-moon

Season 3, episode 20
Written, Produced & Narrated by: Isaac Arthur

Cover Art:
Jakub Grygier
https://www.artstation.com/artist/jakub_grygier

Graphics Team:
Jarred Eagley
Katie Byrne
Misho Yordanov
Murat Mamkegh
Sergio Botero
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Luca de Rosa
Michael Gusevsky
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner

Music:
Dexter Britain, “Seeing the Future”
Markus Junnikkala, “A Memory of Earth”
Dan McLeod, “Mysterious Universe”
Sergey Cheremisinov, “Labyrinth”
Kai Engel, “December”
Dan McLeod, “Calculations”
Brandon Liew, “Into the Storm”

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Psychohistory

A look at methods for predicting the future, how plausible they are and what hurdles they face, with a focus on Isaac Asimov’s concept of Psychohistory, from the classic Foundation series.

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Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/psychohistory

Season 3, episode 21
Written, Produced & Narrated by: Isaac Arthur

Cover Art
Jakub Grygier

Graphics Team:
Jarred Eagley
Katie Byrne
Misho Yordanov
Murat Mamkegh
Sergio Botero
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Luca de Rosa
Michael Gusevsky
Mitch Armstrong
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner

Music:
Dexter Britain, “Seeing the Future”
Markus Junnikkala, “A Memory of Earth”
Dan McLeod, “Mysterious Universe”
Sergey Cheremisinov, “Labyrinth”
Kai Engel, “December”
Dan McLeod, “Calculations”
Lombus, “Hydrogen Sonata”
Brandon Liew, “Into the Storm”

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Launch Loops

The Launch Loop is a type of space vehicle launch assist mechanism that allows us to transfer vast amounts of energy and momentum from ground based generators to a launch vehicle high in the upper atmosphere.

View Lofstrom’s 2009 updated paper:
http://slides.launchloop.com//launchloop.pdf

Lofstrom’s response to the episode:
http://launchloop.com/UpwardBound

Visit our Website: http://www.isaacarthur.net
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Support the Channel on Patreon: https://www.patreon.com/IsaacArthur
Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/
Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/launch-loops
Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

Graphics Team:
Jarred Eagley
Katie Byrne
Misho Yordanov
Murat Mamkegh
Sergio Botero
Stefan Blandin

Script Editing:
Andy Popescu
Connor Hogan
Edward Nardella
Eustratius Graham
Gregory Leal
Jefferson Eagley
Luca de Rosa
Michael Gusevsky
Mitch Armstrong
MolbOrg
Naomi Kern
Philip Baldock
Sigmund Kopperud
Steve Cardon
Tiffany Penner

Music:
Sergey Cheremisinov, “Sirius”
Kai Engel, “Endless Story about Sun and Moon”
Koalips, “Kvazar”
Markus Junnikkala, “A Memory of Earth”
Dan McLeod, NeptuneUK, “Mysterious Universe”

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SFIA 100k Subscribers Special

Today the channel has reached 100,000 subscribers and to celebrate that we’ll take a look back at the channel’s origins and thank some of the folks who’ve helped the channel grow. Our regularly scheduled episode will still appear Thursday morning.

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Tips from Kardashev 2 Engineers, part 2

Part 2 of our look at mega-engineering projects civilizations may tackle on their way to achieving Kardashev 2 status. Teaming up again with Fraser Cain & Universe Today, we look at artificial magnetospheres, mining and disassembling comets, asteroids, and even whole planets, and harvesting the Sun itself.
You can see part 1 here:
https://youtu.be/95sSJ_x7a1k

Visit our Website: http://www.isaacarthur.net
Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/
Support the Channel on Patreon: https://www.patreon.com/IsaacArthur
Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/
Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/tips-from-kardashev-2-engineers-part-2

Tips from Type 2 Engineers
Season 3, episode 23b
by Fraser Cain & Isaac Arthur

Cover Art
Jakub Grygier
https://www.artstation.com/artist/jakub_grygier
Graphics:
Sergio Botero
https://www.artstation.com/artist/sboterod
Kevin Gill
https://www.flickr.com/photos/kevinmgill/

Music:
Lombus, “We Roam the Stars”
https://soundcloud.com/lombusmusic
AJ Prasad, “Dark Future – Staring Through pt 1”
https://soundcloud.com/thedarkfuture
Markus Junnikkala, “A Memory of Earth”
https://soundcloud.com/user-487818115

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Space is exciting