electric_ionland
electric_ionland t1_je0ee5y wrote
Reply to Is Space-Based Solar Power An Option to Solve Humanity's Energy Hunger After All? by larsschellhas
If you are promoting your own article you should probably just say so...
electric_ionland t1_jdzlf51 wrote
In addition to creep path, difficulties with HV electronics and other issues raised here you also need to be careful of the difference between thin film dielectric strength, which is really high, and actual bulk material dielectric over lifetime. In practice you often have a couple of orders of magnitude difference there.
electric_ionland t1_jdwozvi wrote
Reply to comment by dingo1018 in IVO Quantum drive to test all-electric thruster on controversial basis of "Quantized Inertia" by J_K_
> the only way to test it is with a space test
I have ran some mN scale measurement test. You can do vastly cheaper tests on the ground if you are not trying to extract as much money from investors as possible.
electric_ionland t1_jdvyvlt wrote
Reply to comment by dingo1018 in IVO Quantum drive to test all-electric thruster on controversial basis of "Quantized Inertia" by J_K_
No there is no independent verification, they paid a test house to go work in their chamber and afaik none of the alleged independent people who looked at it have been named. This is not independent testing.
electric_ionland t1_jdvjtjv wrote
Reply to IVO Quantum drive to test all-electric thruster on controversial basis of "Quantized Inertia" by J_K_
For anyone asking this is almost certainly in the same vein as the infamous "EM drive". They allegedly have a revolutionary propelantless propulsion system that has not been verified independently and where they cannot describe the physical principle behind it (not peer reviewed to boot).
Assuming it works it would break several fundamental physical principles like conservation of energy.
The company and its executives are also extremely sketchy with no real background in the field.
electric_ionland t1_jdume22 wrote
Reply to What is a mind blowing fact about space that can blow away even the simplest of minds? by [deleted]
Hello u/ArtVandalay47, your submission "What is a mind blowing fact about space that can blow away even the simplest of minds?" has been removed from r/space because:
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electric_ionland t1_jbt7pr0 wrote
Reply to comment by jeg_flaekker_alt in Does the winners effect extend to non face-to-face competition? by LAMARR__44
It is sadly, OP has been banned. Please if you have doubts report the comment and we can have a look in more details.
electric_ionland t1_j85pd41 wrote
Reply to comment by RareBeautyEtsy in What are some of the mechanisms behind why long term physical inactivity and social isolation leads to chronic health diseases? by [deleted]
Yes in that case we are talking about AI programs. The most well known at the moment is OpenAI Chat GPT. They produce very realistic sounding answers but those are often innacurate or straight up made up. Spotting them is not always easy but they often use the same writing style where they will restate the question in the first sentence. They use a lot of connecting adverbes like "however", "similarly", "therefore" or "overall". They will often use passive voice and very general sentences like "It is well established that...". The main thing is that after you see a few of them you can recognize the style.
electric_ionland t1_j84r8tq wrote
Reply to comment by SynbiosVyse in What are some of the mechanisms behind why long term physical inactivity and social isolation leads to chronic health diseases? by [deleted]
This is a whole bot network that hit the sub with ~100 account overnight. No point arguing with them.
electric_ionland t1_j83r256 wrote
Reply to comment by virgoing in How many years did it take ecosystems to recover from K-Pg Extinction event (Chicxulub asteroid)? by virgoing
Sorry this looks like it was a bot answer that slipped through the cracks. Chat GPT and other similar tools are well known to simply make up believable facts. Do not take this answer as factual.
electric_ionland t1_j838ilk wrote
Reply to comment by [deleted] in What are some of the mechanisms behind why long term physical inactivity and social isolation leads to chronic health diseases? by [deleted]
This was written by a chatbot. Don't take any of what was said as verified information.
electric_ionland t1_j6n22gw wrote
Reply to comment by HighRepsToHugeness in Growing fruit trees from seed, what triggers fruiting? by HighRepsToHugeness
The answer above was written with GPT Chat bot. Don't take anything it says at face value. It is well known to just make stuff up.
electric_ionland t1_j5yv2cw wrote
Hello u/Sophia-78, your submission "Weather could foil an early morning SpaceX Falcon 9 launch set for Thursday" has been removed from r/space because:
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Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.
electric_ionland t1_j5yukz7 wrote
Reply to comment by UnamedStreamNumber9 in Why do sample return missions such as OSIRIS-REx use their own reentry vehicles instead of just going to the space station for pickup and return with ISS equipment? by PromptCritical725
Sure but AFAIK this was never a primary mission goal. It's just a nice bonus because they had the margins.
electric_ionland t1_j5xte0y wrote
Reply to comment by TryingNot2BeToxic in Why do sample return missions such as OSIRIS-REx use their own reentry vehicles instead of just going to the space station for pickup and return with ISS equipment? by PromptCritical725
Yes stopping on the surface of the moon is a pretty terrible idea. However you could envision missions where lunar ice is mined to create propellant and that fuel is sent to a convenient orbit that is more "on the way".
electric_ionland t1_j5v0opz wrote
Reply to Why do sample return missions such as OSIRIS-REx use their own reentry vehicles instead of just going to the space station for pickup and return with ISS equipment? by PromptCritical725
The main issue is that you would need to match the ISS orbit.
A probe coming in from deep space will have a velocity of more than 11.5km/s. ISS orbits Earth at only around 7.5km/s. This means you need enough fuel to slow down by more than 4km/s (nearly 9000 mph!). This propellant would be way heavier than a heatshield. The few deep space missions that have brought things back have not bothered to slow down to orbital speed. They just slam into the atmosphere and let it do all the braking for free.
Heatshield are actually really convenient (if technically difficult to build) ways to slow down. Think of how big a rocket needs to lift something to orbit. If you did not have atmosphere to slow you down on you way back you would need nearly as big of a rocket to land.
electric_ionland t1_j54r0xk wrote
Hello u/Intelligent_Ad_3262, your submission "What if?" has been removed from r/space because:
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electric_ionland t1_j54neer wrote
Reply to comment by [deleted] in Is there a difference in the force needed to lift a barbell with iron plates vs a barbell with bumper plates of the exact same weight? by emab2396
Yeah the guy in the video is a bit confused and doesn't apply the right equations. But the general point is that denser weights that are closer to your end are easier to balance so they feel lighter. But they do require the same amount of force to lift.
electric_ionland t1_j54dzkm wrote
Reply to comment by emab2396 in Is there a difference in the force needed to lift a barbell with iron plates vs a barbell with bumper plates of the exact same weight? by emab2396
They need the same force. However thicker/thinner plates or longer/shorter bars can make it easier to balance.
electric_ionland t1_j54dg9z wrote
Reply to Is there a difference in the force needed to lift a barbell with iron plates vs a barbell with bumper plates of the exact same weight? by emab2396
There is no practical differences in the force required.
electric_ionland t1_j4goz8h wrote
Reply to why are people mean by Valuable-View8366
Hello u/Valuable-View8366, your submission "why are people mean" has been removed from r/space because:
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electric_ionland t1_j311y0b wrote
Reply to comment by by251536 in How is stereo information encoded into a vinyl record? by caedin8
On top of what /u/Prestigious_Carpet29 said it also ensures back compatibility with mono systems.
electric_ionland t1_j2y3f3w wrote
The groove is a V shape with 90 degree angle. Each side of the V encodes for a different channel. The result (depending on how they are configured) is that the up and down movement of the stylus give you the sum of both channels while the left to right movement give you the difference between them.
electric_ionland t1_j2884m8 wrote
Reply to comment by [deleted] in has the speed of light always been constant? by 2bornnot2b
> Again, my understanding is fairly limited and largely from popular press like a brief history of time and such. So any errors here are all me.
In that case please refrain from commenting, especially on very technical topic such as this one. A good rule of thumb is that if you can't provide peer reviewed sources if asked you probably do not have the required expertise to answer the question to the standards of r/askscience.
electric_ionland t1_je0lqe5 wrote
Reply to comment by larsschellhas in Is Space-Based Solar Power An Option to Solve Humanity's Energy Hunger After All? by larsschellhas
It's fine, but implying that you just found that article rather than wrote it is more than a bit disingenuous.
My personal take as an aerospace engineer is that I find it hard to believe that the benefit of better illumination outweigh the complexity and cost of a project like that.