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#3200
by
Mulletron
on 13 Apr, 2018 19:46
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Sonny White is talking right now.
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#3201
by
Monomorphic
on 13 Apr, 2018 20:59
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Image of White's latest Q-Thruster. Looks like everything is new.
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#3202
by
Monomorphic
on 13 Apr, 2018 21:02
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Zubrin's Dipole Drive is a type of electromagnetic solar sail that accelerates protons.
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#3203
by
SteveD
on 13 Apr, 2018 22:36
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Zubrin's Dipole Drive is a type of electromagnetic solar sail that accelerates protons.
Is that useful outside of Earth orbit?
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#3204
by
tchernik
on 13 Apr, 2018 23:21
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Sonny White is talking right now.
...
The comments and criticism were a bit more biting this time. Probably because the topic and papers have been in the open for a while now.
Anyway, good to see some work on this still going on at Eagleworks.
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#3205
by
Mulletron
on 13 Apr, 2018 23:33
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Sonny White is talking right now.
...
The comments and criticism were a bit more biting this time. Probably because the topic and papers have been in the open for a while now.
Anyway, good to see some work on this still going on at Eagleworks.
Yeah, Lawrence Krauss really lit up Sonny White. I think White handled himself well. I'm just happy knowing that Lawrence Krauss knows an EMdrive exists and someone of his (caliber, excellence, stature, influence...etc) is even in attendance without walking out. I think that shows great character. On another note, I wonder if Sean Carroll ever thinks about whether or not he might have been wrong about the EMdrive.
Was that other question asker Mark Millis?
I'm happy that White seems to have moved on somewhat from QVPT to a more sophisticated thinking with Pilot Wave Theory. I can see the progression in thought.
Questions begin at 24:33.
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#3206
by
oyzw
on 14 Apr, 2018 01:26
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这个是铝合金腔体，Q值要低20%，相比铜腔，有具体推力参数吗？
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#3207
by
Bob Woods
on 14 Apr, 2018 01:31
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这个是铝合金腔体，Q值要低20%，相比铜腔，有具体推力参数吗？
Google:
This is an aluminum alloy cavity, Q value is lower than 20%, compared to the copper cavity, there are specific thrust parameters?
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#3208
by
Mulletron
on 14 Apr, 2018 01:53
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这个是铝合金腔体，Q值要低20%，相比铜腔，有具体推力参数吗？
Google:
This is an aluminum alloy cavity, Q value is lower than 20%, compared to the copper cavity, there are specific thrust parameters?
This kind of collaboration is amazing and helpful. I applaud you. From a humanistic point of view, it's exactly the right thing to do. From a nationalistic point of view, it's exactly the wrong thing to do. I think it's important to point this out and to stimulate discussion.
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#3209
by
oyzw
on 14 Apr, 2018 02:06
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Let's applaud the humanistic spirit.
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#3210
by
Mulletron
on 14 Apr, 2018 02:14
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I saw a star in the western sky (about two hours ago), it was bright, and it may have been a planet close by, I didn't check. I want to go there, I want to see what's there, and I don't want to waste large amounts of my life trying to voyage there, I want it to be safe trying to get there, and I want to know that my children will be able to go there, routinely, and they won't be in danger trying to make the trip, I want it to be affordable, like hopping in the car for a road trip to see grandma. I want us to find new places to live, to allow us to outgrow our home, and find another. We're good enough for this.
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#3211
by
Mulletron
on 14 Apr, 2018 02:19
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The nationalistic approach is the right thing to do too. Humanity is not united yet. We're tribal, and it's not even wrong.
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#3212
by
tchernik
on 14 Apr, 2018 02:35
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Science and human knowledge march on and they have no sides nor nations.
The conferences and papers aren't secret. If anything of this is real, anyone could take the knowledge in the open and make their own versions.
The national interests and considerations will come in due time regardless, and this potential technology could be applied to them as any other.
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#3213
by
Monomorphic
on 14 Apr, 2018 22:04
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More detailed info on MIT's "Maglev Cubesat Testbed." They use a big electromagnet, a dampening system, and sensors to do the levitation. The Arcsecond Angular Encoder is what they use to collect data. I'm really interested in what kind of signal the encoder generates and will be looking into that in detail. The Lifter just seems to hold it up when the electromagnet is off, but may also position the rig. The Electromagnetic Dampers allow for variable damping. What's really interesting is how the Helmholtz Coils interact with the with the permanent magnet. I think they use these to stabilize the rotation, but am not sure. Very cool stuff.
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#3214
by
Bob Woods
on 15 Apr, 2018 05:03
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More detailed info on MIT's "Maglev Cubesat Testbed." They use a big electromagnet, a dampening system, and sensors to do the levitation. The Arcsecond Angular Encoder is what they use to collect data. I'm really interested in what kind of signal the encoder generates and will be looking into that in detail. The Lifter just seems to hold it up when the electromagnet is off, but may also position the rig. The Electromagnetic Dampers allow for variable damping. What's really interesting is how the Helmholtz Coils interact with the with the permanent magnet. I think they use these to stabilize the rotation, but am not sure. Very cool stuff.
Video:
http://spl.mit.edu/spacecraft-systems
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#3215
by
dustinthewind
on 15 Apr, 2018 05:09
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The nationalistic approach is the right thing to do too. Humanity is not united yet. We're tribal, and it's not even wrong.
Society will evolve. The U.S. state system actually encourages this evolution of societies for instance. Advantages of the new may outweigh the old, supplanting what was. Just as the world has become smaller with the advent of communications so society may have new avenues of change.
What used to be overlooked and people got away with isn't so easy to do now. We have all become more aware of our small world and the dangers it's facing. It would be interesting if it turned out it was a race of collaboration among many that could circumnavigate some of those coming dangers, determining devastation or survival of early civilization growth. What do we do when the fuel runs our for instance? Food, resources, shipping, mining, research?
Collaboration originally must have been some what limited in early human history but with its growth our rate of change and size of our societies has grown rapidly. Who is to say even the advent of the evolving AI wouldn't be more of a companion and tool rather than a danger (though often portrayed as a danger). Similar to the companion in Halo the game, further accelerating society. New things don't come easy for us though. Big question about open source collaboration is what about intellectual property protection and citing sources not published. Or is it just for the spirit of change.
I think there was a lot of excitement at the discovery of nuclear decay and collaboration over the borders despite some views on borders. The human spirit naturally contains curious minds that tend to go beyond the borders of boxes put in place by others.
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#3216
by
CW
on 15 Apr, 2018 07:55
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There is stuff that works, and there is stuff that doesn't work. Konwledge is knowing that difference. There is no 'we' concerning humanity, as there are in fact many different humanities at the same time on this beautiful world. And it is good this way. This is true diversity. Let's keep it that way, m'kay?
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#3217
by
Star One
on 15 Apr, 2018 09:00
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The nationalistic approach is the right thing to do too. Humanity is not united yet. We're tribal, and it's not even wrong.
Society will evolve. The U.S. state system actually encourages this evolution of societies for instance. Advantages of the new may outweigh the old, supplanting what was. Just as the world has become smaller with the advent of communications so society may have new avenues of change.
What used to be overlooked and people got away with isn't so easy to do now. We have all become more aware of our small world and the dangers it's facing. It would be interesting if it turned out it was a race of collaboration among many that could circumnavigate some of those coming dangers, determining devastation or survival of early civilization growth. What do we do when the fuel runs our for instance? Food, resources, shipping, mining, research?
Collaboration originally must have been some what limited in early human history but with its growth our rate of change and size of our societies has grown rapidly. Who is to say even the advent of the evolving AI wouldn't be more of a companion and tool rather than a danger (though often portrayed as a danger). Similar to the companion in Halo the game, further accelerating society. New things don't come easy for us though. Big question about open source collaboration is what about intellectual property protection and citing sources not published. Or is it just for the spirit of change.
I think there was a lot of excitement at the discovery of nuclear decay and collaboration over the borders despite some views on borders. The human spirit naturally contains curious minds that tend to go beyond the borders of boxes put in place by others.
OT I know but with the current situation of the world we will be lucky if we aren’t chalked up as another failed civilisation in the universe within the next century.
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#3218
by
Monomorphic
on 15 Apr, 2018 13:26
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Version 3 of the liquid metal contact system is finished printing. The top piece is in gray on the left. It was printed at the fastest setting and took about 3 hours to print. The bottom piece on the right was printed using "clear" PLA on a much finer setting, since it needs to be as near as water-tight as possible. That printed over night and took about 10 hours. I placed a piece of metal in one of the reservoirs so you can see that it is indeed transparent enough that I will be able to see the liquid metal level. Next I will wire it up, making sure all pairs are twisted, mount it to the pendulum, and then wait until the liquid metal arrives on Tuesday.
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#3219
by
aceshigh
on 17 Apr, 2018 06:36
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The nationalistic approach is the right thing to do too. Humanity is not united yet. We're tribal, and it's not even wrong.
so you think exploration of the Solar System will follow the same parameters of the European Nation States exploration of the Americas? And yet, that lasted only 300 years before every started going independent.
but if we are talking here about interstellar exploration, there is not even sense in start talking about nationalistic approach. The vast time and distances involved prevent Earth nation states from even trying to maintain some sort of control.
This subject is off topic for this thread, but I will say that I have a far less optimistic outlook on the subject. The rest of the world still thinks in terms of cultural dominance, and the West is on course to getting dominated for that naivete. Our monkey-brained tribalism hasn't gone anywhere, and it's become self-destructive in pursuit of fashionable ideas of grand idealism, or vacuous stands against everything in the West's past, while possessing no substance to uphold.
with "the rest of the world", do you mean SPECIFICALLY China and Russia? What a grand generalization that was.
plus tons of doomsday scenario being painted about what other humans might do, when right now the US and China and probably Russia are on a race for General Intelligence AI, as if they could dominate a thinking being that, even if it is only as intelligent as it's creator, it processes information 2 million times faster. So each hour it has to think is like a thousand years of it's creator thinking. You can´t outsmart or unplug such a thing. It will convince you to not do so. (if you could contain it on a box, to start with, which you can't)
There you have your real danger not only to western civilization, but to all humanity.
