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.

If you are promoting your own article you should probably just say so...

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.

> 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.

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.

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system that has not been verified independently and where they cannot describe the physical principle behind it (not peer reviewed to boot).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.

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It is sadly, OP has been banned. Please if you have doubts report the comment and we can have a look in more details.

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.

This is a whole bot network that hit the sub with ~100 account overnight. No point arguing with them.

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.

This was written by a chatbot. Don't take any of what was said as verified information.

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.

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Sure but AFAIK this was never a primary mission goal. It's just a nice bonus because they had the margins.

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".

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.

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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.

They need the same force. However thicker/thinner plates or longer/shorter bars can make it easier to balance.

There is no practical differences in the force required.

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On top of what /u/Prestigious_Carpet29 said it also ensures back compatibility with mono systems.

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.

> 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.