--- Log opened Tue Aug 04 00:00:40 2020
00:25 < archels> lsneff: I read a few years ago about the interstellar ship concept where you constantly accelerate at 1G
00:25 < archels> don't remember the details but it sounded like one of the more feasible solutions
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06:08 < kanzure> lsneff: get used to it... long-range travel is going to be for cryonics/uploads/electronics, or spores and self-replicators.
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06:09 < kanzure> at best you can hop around with interstellar communication which is also slow, once someone sets up a receiver
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06:47 < abetusk> .title https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0179133
06:47 < saxo> 3D printing and milling a real-time PCR device for infectious disease diagnostics
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06:48 < abetusk> Does anyone know what avalanche photodiode they use or where to get an equivalent one?  https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0179133#sec004
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06:52 < L29Ah> wow, what a shitty schematic they have
06:53 < L29Ah> abetusk: it's in https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0179133
06:54 < L29Ah> surprisingly expensive stuff
06:56 < abetusk> l29ah, sorry, I don't see the photodiode part listed anywhere
06:56 < L29Ah> abetusk: ODA-6WB-500M-ND
06:57 < abetusk> ah, found it: https://doi.org/10.1371/journal.pone.0179133.s008
06:57 < abetusk> l29ah, htanks
06:57 < abetusk> *thanks
07:18 < lsneff> archels: Black hole starship?
07:19 < lsneff> kanzure: Yeah, it seems like it. Best we can probably do is with a gigantic laser of some sort pointing at a small sail.
07:36 < lsneff> Even antimatter doesn’t have a very good mass ratio, sadly.
07:48 < kanzure> once you have a receiving end, you don't need the sail to be in between the laser and the receiver
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08:22 < lsneff> .t https://phys.org/news/2020-08-casimir.html
08:22 < saxo> Casimir force used to control and manipulate objects
08:32 < kanzure> FIB project https://www.theverge.com/2019/11/21/20975650/google-pixel-titan-m-security-chip-bug-bounty-program-3-3a-4-hack
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08:58 < lsneff> Apparently, there have been experiments with extracting energy from the casmir effect that aren't immediately disproven.
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09:25 < fenn> spacex starship hop attempt #2 https://youtu.be/5QbM7Vsz3kg
09:26 < fenn> T-10 minutes
09:26 < lsneff> fenn: when?
09:26 < lsneff> Nvm
09:32 < fenn> hmm the double venting isn't a good sign
09:34 < lsneff> Another abort, it seems :/
09:35 < fenn> yeah
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09:44 < lsneff> Wonder what was up with that venting stack?
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09:51 < fenn> never seen that before
09:53 < fenn> it used to be a flare stack but they got a LN2 powered methane condenser system to recycle the gaseous methane instead of burning it.. so maybe that failed and they had to do an emergency detanking and decided to just dump the unburned methane?
09:56 < lsneff> I heard people on the live stream say they thought it was venting O2.
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09:58 < fenn> the people talking on this live stream don't really know their stuff. the nasaspaceflight stream has better commentary https://youtu.be/wJUdY14kfhc
09:58 < fenn> but the video quality is much better, and it's 24/7
10:12 < lsneff> .t https://medium.com/predict/james-woodward-on-machs-principle-for-reactionless-inertial-propulsion-34384863ad50
10:12 < saxo> James Woodward on Mach’s Principle for Reactionless Inertial Propulsion | by Tim Ventura | Predict | Medium
10:12 < lsneff> Forgive me for posting a medium article, but, in this case, I think the contents are interesting.
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12:19 < archels> lsneff: https://en.wikipedia.org/wiki/Space_travel_using_constant_acceleration
12:22 < lsneff> archels: I understand the concept of constant acceleration for space travel. You're going to find it difficult to find any realistic way of stuffing enough ΔV into a spacecraft to do constant acceleration across interstellar distances.
12:24 < archels> yep, this makes no statement about how to actually obtain the constant 1G, it's just a hypothetical
12:26 < lsneff> Someone in the toughsf discord had a fusion drive that could do a 1g brachistochrone from earth to ceres iirc, but I'm not sure if more is feasible.
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16:45 < kanzure> bookmarking thing with tab state tracking stuff https://github.com/karlicoss/promnesia
16:47 < fenn> another spacex starship SN5 hop attempt https://www.youtube.com/watch?v=5QbM7Vsz3kg and https://www.youtube.com/watch?v=VwC6LG_z8zE
16:48 < fenn> T-10 minutes
17:00 < kanzure> success
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19:10 < kanzure> meanwhlie in lesswrong:
19:10 < kanzure> 17:49 <@saturn2> maybe poop is the most enjoyable form for matter to be in and it's the plants that are torturing it
19:12 < lsneff> This is why i don't frequent lesswrong
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21:28 < fenn> drone footage of sn5 hop https://www.youtube.com/watch?v=s1HA9LlFNM0
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22:27 < fenn> meanwhile, in japan
22:27 < fenn> .title http://youtu.be/RjPZTjZE6F8?t=2m17s
22:28 < saxo> 'GUNDAM FACTORY YOKOHAMA' Progress Report Meeting - YouTube
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--- Log closed Wed Aug 05 00:00:40 2020