I planned the whole time to use a clip from Dune of the Holtzmans shields. 100% the best visual of an energy shield - other than I guess being able to make a real one...

@omnijack

22 күн бұрын

I hope you mean the version of Dune with Patrick Stewart and Sting.

@DrBenMiles

21 күн бұрын

@@omnijack 100%

@petergerdes1094

20 күн бұрын

@@omnijackYou mean the janky square shit? Interesting movie, but that shield vfx was janky af.

@touchheartyoga

19 күн бұрын

I think the approach is a little backwards the shield needs to simply draw the particles in a stream past the vehicle

@touchheartyoga

18 күн бұрын

So wasn't there some development on a skin for the vehicle that produces its own electricity from the movement of the craft? I could be mixed up here. But either way, I'm confident that the same technology will open the door to partial capture for electrical generation.

I'm not sure it'd stop a photon torpedo, but it's a step in the right direction... 😄

@FutureAIDev2015

21 күн бұрын

A mirror could stop a photon torpedo. A proton torpedo would be the big challenge 😂

@hervigdewilde3599

21 күн бұрын

@@FutureAIDev2015 I see which side you'll be on in the coming Trek Wars... 🤪

@FutureAIDev2015

21 күн бұрын

@@hervigdewilde3599 unfortunately, r/whoosh... Huh?

@hervigdewilde3599

21 күн бұрын

@@FutureAIDev2015 Proton torpedoes are Star Wars, whereas photon torpedoes are Star Trek. 🤣

@FutureAIDev2015

21 күн бұрын

@@hervigdewilde3599 Ahhh... A photon torpedo would technically just be a laser though wouldn't it

-What were you working on in NASA, dad? _A CREW-HAT. But they rejected the design.._ -How hard can it be to design a new "NASA" cap.. Why did they reject it? _It turned out too big and heavy.._ -How heavy? _25'000Kg, but still a huge improvement.._

@mikebar42

13 күн бұрын

Keep your chin up dad, you'll get it one day.

Star Wars and Star Trek fans rejoice

@hamasmillitant1

8 күн бұрын

also useful in the coming nuclear war to protect those that can afford it :P

@spiderlord4181

2 күн бұрын

​@@hamasmillitant1dude, this technology with do absolutely nothing to a nuclear detonation. This is meant to block stray particles traveling through space, not a small STAR at practically point blank range. Stop being such a doomer and lighten up, this technology is a good think that could help us explore and even make new homes in the future.

@evobsm2328

2 күн бұрын

​@@hamasmillitant1i dont think you will be able to protect anything then

I think there may be an active shielding application for reentry vehicles. Watching starship form a plasma sheath made me think we could try deflecting the plasma as a way to heat shield the vehicle. May also apply to hypersonic aviation

@everettstormy

21 күн бұрын

Think about fusión reactors i think it would br similar to that besides being far less efficient

@seagie382

20 күн бұрын

Initially they wanted to drop the heat tiles and pump fuel mist into the plasma to form a sort of bubble

@FelonyVideos

20 күн бұрын

I like the way you think. That is novel. Hi IQ style. But... As it happens, the only reason there is a plasma around any reentry vehicle is because the speed of the vehicle versus the air. The leading surface hits the air molecules so fast it heats them to the point of kicking loose their electrons, making said plasma. 1mm before striking them, they are not ionized, so no magnet or electric field can move them out of the way. But it gets worse. The air is actively being used as a brake. If it was possible to move the air out of the way, the ship would have no braking, and would "land" on the surface at 17,000 mph. We prefer 0 mph as a better landing speed. 😂

@DS-vu5yo

20 күн бұрын

@@FelonyVideos not debating the cause of the plasma…. But plasma is generally conducive regardless of how it is produced. A pulsed field should be able to be produced that would not only reduce the heat on the tiles- but actually increase the resistance by pushing the plasma out. The heat would of course be absorbed by the generator creating the field…. So no free lunch- but maybe an optimization exercise.

@aelisenko

20 күн бұрын

@@FelonyVideos I was thinking the air would initially go through the magnetic field, hit the vehicle and start ionizing, once the plasma layer develops the magnetic field would create a cushion between the plasma and vehicle. At those speeds I don't think the magnetic field would be able to delfect anything just force the plasma off the vehicle slightly, creating an insulating layer. This would likely create a large pressure differential so it would be interesting to simulate the overall effects to the vehicles aerodynamics

At 4:21 you said 99.99 times the speed of light instead of 99.99 percent the speed of light and I was like hold up 😂 The graphic has the % though so it's ok

@jerrycornelius7488

22 күн бұрын

Listening in the kitchen, spilt my tea, not OK! 😅

@DrBenMiles

22 күн бұрын

I'm a dummy. Good catch 👍

@Garrett0329

22 күн бұрын

Dude….the world is still spinning. You got his point so well you called him out for it? Pity

@Ri-ver

22 күн бұрын

@@Garrett0329 I don't imagine he interpreted it as 'calling out' so much as some good natured teasing from someone who clearly enjoyed his content. I have another account where I publish educational content on computational EM. I wouldn't be bothered at all by a comment like the one I made

@zanarkandmusic

22 күн бұрын

Yeah, I was wondering if anyone else was going to say something 👍

A science channel that isn't clickbait? Subscribed.

You know I've been working on my first science fiction novel for well over three years now, and its yt channels like this that genuinely help me ground some of my absurdly fictional concepts in at least pseudo plausible science.

@Nidvard

21 күн бұрын

The best sci-fi's (imo) are the ones which have relevance to reality, so I'm pleased to hear this. Lots of absurd concepts are edging closer to reality anyway. warp drive has become alcubierre drive, and this video shows promises on shielding. If we get the energy production of fusion, we're good to go.

@bendybruce

20 күн бұрын

@@Nidvard I'm sure every SF writer has their own opinion on this, but for me anyway, SF Is the best vehicle for Demonstrating very human and down to Earth realities with regards to our failings, but in a way that we are far Less likely to be offended by, because of the fantastical setting. With a strong focus on the human condition, we can also explore what that might mean for our future assuming our mastery of science and technology continues to grow. The actual science behind the fiction is not personally the most important thing to me, but I have a deep respect for the scientific method, and feel I must make the best effort I possibly can to try and honor that.

@oxjmanxo

20 күн бұрын

One of my favorite types of shields is a gravity shield. Fucking around with space time in front of your ship so projectiles curve away from your ship. The drawbacks are you need to predict where your enemy is going to shoot. You can’t throw it on reactively as by the time you see a relativistic projectile or laser it’s already too late. You also run the risk of curving an otherwise glancing blow into a bullseye. Battles turn into a contest of who’s gunners can outwit the opponents shielding.

@bendybruce

20 күн бұрын

@@oxjmanxo LOVE IT!

@oxjmanxo

19 күн бұрын

@@bendybruce a variation of this was a gravity hammer. Why not turn the bending of space time in your shields into a weapon? Turn the gravity up to 11 within the enemy ship. You can add distance limitations to make this a short range use only thing. These are all variations on how to use the classic gravity generator tech in different unique ways.

If you're merely deflecting the particles, then aren't you just concentrating them into the non-shielded parts of the pattern? I suppose if you stacked enough layers of this matrix, then the " tortuous path" you created would have equal probability of reflecting or letting through any given particle?

@-_James_-

22 күн бұрын

Surely if you deflect through the first layer, the second layer would just deflect back into the spaces protected by the first layer, thus solving nothing. What you actually need to do is deflect the particles into channels that flow around the ship and back into space.

@everettstormy

21 күн бұрын

I wander about catching some of the particles to generate power​@@-_James_-

@simleek6766

17 күн бұрын

Yep, you can see in the image that it's brighter in between the non-shielded parts. In that case, you'd probably want a cone of circles of points, with the smallest circle/point forward most, so that any particle can be deflected entirely around a habitable area, like how the some of grid particles were deflected to the outside. Alternatively, you could only protect the parts of a ship that needed to be protected from radiation, and let the parts that can handle much more radiation have much more radiation.

@chrissears9912

16 күн бұрын

I was wondering this too, but surely JPL and NASA would have thought of this... The deflection must be a greater angle.

@elishelton9412

15 күн бұрын

Yeah I noticed this too, it’s not sending the particles 180 degrees back the way they came, it’s only throwing them a few degrees off and funnelling them into more concentrated areas between the gaps.

I'm sure it's covered in more detail in the actual paper, but it feels like th shadow would be offset by the increased brightness when the protons are deflected into the unshaded areas; a shadow doesn't provide 'shade' if most of the light is still reaching the surface. This feals more like it creates caustics, like light ripples on the bottom of a pool. Sure, the dark areas are darker but the light areas are brighter leading to the same overall radiation exposure. I'd be happy to be wrong.

@thorzweegers7616

19 күн бұрын

Exactly.... where are they deflected towards?

@bobbygetsbanned6049

18 күн бұрын

I highly doubt particles moving that fast are going to get deflected and keep moving in the same general direction unless they hit the very edge. Shining light on a mirror shines the light back at you, not on the wall next to the mirror.

@JB52520

17 күн бұрын

@@bobbygetsbanned6049 Deflection and reflection are different, though. Deflection just needs to push the particles to the side a bit so they can continue on their way. I had the same concern about caustics but didn't think to call it that. If those electrodes are just nudging the particles to areas between the shadows, then it's no improvement. If the astronauts sit in the same place frequently, it would focus the radiation on smaller areas of their bodies, increasing the risk of cancer. But like the OP, I'd be happy to be wrong.

Ideally, we'd want to "capture" these particles, and translate their energy to into usable power for the craft.

@JB52520

17 күн бұрын

I think it would take more energy to accelerate them to match the spacecraft's velocity than whatever energy could harnessed from their charge. But maybe they could do some work on the way by. (Honestly I don't know. Physics is not my forte, it's just fun to think about.)

@rafaelgonzalez4175

15 күн бұрын

Ideally we need to resolve the radiation issue of the cosmos before we dive into the radiation of the cosmos. One main reason why deep space is off limits. Absorption of radiation. Passing through the lowest density of the radiation belt was a mission. Dealing with direct radiation now. Deep space. Anything outside of Earth's Radiative belt.

"Crew-hat" makes sense because you wear a hat to protect yourself from the sun. This hat protects the whole crew at once. 😂

Any astronaut caught in the blast would, of course, develop superpowers.

Not enough people talk about this major roadblock to space travel...👍

@MadScientist267

19 күн бұрын

Not enough people talk about why space travel is not only pointless but also pointless, and likely pointless.

@poetryflynn3712

14 күн бұрын

@@MadScientist267 This is why I honestly think space colonization will never actually happen. No one wants to sacrifice what they have on earth unless you're a nerd.

@scotthillard3418

13 күн бұрын

@@poetryflynn3712 "That's why I honestly think that new world colonisation will never happen, nobody wants to sacrifice what they have in Europe unless you're a religious extremist".

@nickmorzinski5558

3 күн бұрын

​@scotthillard3418 Exactly lol, we aren't changing our nature anytime soon.

@spiderlord4181

2 күн бұрын

​@@poetryflynn3712I don't know who this "no one" is, but it certainly isn't me. The first chance I get I'm jumping ship to something new.

Another reason for discounting the electrostatic approach, even for energies that are doable, is that some particles have the opposite charge.

@Nidvard

21 күн бұрын

protons always have a positive charge, that's the definition of the proton. If it had negative charge it would be an electron. For charged ions, they are charged as electrons are stripped away, making them positive charge. So no, no opposite charge.

@JohnDlugosz

19 күн бұрын

@@NidvardYou don't find high energy electrons to be a problem? And cosmic rays also see some anti-protons.

@lafeechloe6998

19 күн бұрын

@@NidvardHigh energy cosmic events produces a fair part antimatter particles

@Nidvard

19 күн бұрын

@@JohnDlugosz if you knew how high energy electrons work and interact then you wouldn't either. If its protons or anti-protons really is irrelevant

@Nidvard

19 күн бұрын

@@lafeechloe6998 "fair part" means a few subatomic particles which immediately disintegrate and this is completely harmless. This occurs when particles interact with something, usually the atmosphere. With such a shield those particles would be deflected and never have the chance to interact to make antimatter

I think that to test this shield around the earth, there are enough radiation belts, inside which satellites like SUBESAT can be launched, which can then be returned to the ground and their surface examined under an electron microscope for radiation damage.

@skyrat3816

14 күн бұрын

Was thinking the same thing with the van Allan belt (may have spelt that wrong). However, it's going to be down to having a launch vehicle to get prototypes there and could well be achievable once starship is able to take payloads into orbit and possibly bring them back for testing.

Subbed. Since I was a child, I have believed that we need, artificial gravity, shields, and fusion. I have given up on fusion, but we need dual nuclear generators, one breeder and one normal to share the fuel rods between them. We can do all this now I think, but rotating a space station is an immense undertaking.

5:49 Lightning actually just struck outside when I saw this at the same time! THAT MATRIX UPDATE IS GREAT!

That was a great presentation. Thank you!

Thank you, Dr. Miles you are an incredible teacher. Thank you very much for bringing this.

I subscribed because you ask the right questions and your hands on approach . Welk done!

This was good information, you've earned a new sub today. Thanks for all your hard work.

Excellent quality deep(ish) post's there, Dr. Miles !

I felt like "I" was being bombarded with high energy information in this video, I loved it. The amount of information injected into my brain by Dr Miles was amazing, as was the subject. Wow, what a high energy rush! Love the information available on this channel.

Very interesting explanations. Thank you very much!

this is a much better video than the average and definitely better than expected despite title aluding to it being goody good good i didnt expect it to be juicy good. Positively surprised here.

Love your content. Thanks!

Dude, it makes sense. Radiation hat for the crew. Crew hat. Cheers!😊

Is this why the electrostatic grid requires much lower voltages than originally calculated: instead of trying to apply an equal electric force to stop the charge particle in its tracks, the grid applies a force at right angles and adds a velocity component at right angles to the initial direction of motion causing the charge particles to miss the central area where the crew is? Edit: Kind of like how judo, rather than blocking the punch, redirects it allowing the blow to keep much its original momentum except it's directed away from the person.

With the correct mix of materials a force field can be produced that is impenetrable by even light . It allows things inside the field to occupy a spectrum of the fabric of space time that is not visible.

"It will be an exciting FIELD to watch for the next few years" I see what you did there

The most important thing to remember is that the weight problem isn’t as big as it seems at first - once you have a particle repulsor shield, just dump particles into it and you have an engine

Awesome video, thanks for all the work you put into it! How much do we need to worry about high energy electromagnetic waves / photons compared to the high energy particles? Would we need to include additional engineering for that, or is that not as much of a concern? And if it is a concern, how much of a challenge is it?

@Nidvard

21 күн бұрын

electromagnetic forces are carried by photons, and with high enough energy this gets into gamma radiation. This can't be stopped by any electromagnetic field of any kind, so the only way we have to shield against anything like that now is dense mass, as in lead, other metals or as starship plans it, water. Some plans (ideas at this stage) would be that certain compartments of starship with be shielded by among other things the water which is brought along the journey, so when they are at risk of coming across large amounts of gamma radiation the crew would shelter inside said compartments. This doesn't eliminate the problem though, and at this stage this is the best we got. Photons can interact with electrons however, so if any electromagnetic shielding were able to hold/lock electrons in place as an extra barrier, that could possibly help (in my uneducated guess)

Interesting, thank you!

Excellent video, thanks

I saw a documentary back in the early 90s that talked about how a factory that produced sheet plastic like cellophane. There was a walkway where the sheet was directed overhead then back down. Under certain conditions it would create a static barrier. People couldn't walk through it and the researcher was amazed to see a fly stuck inside it unable to escape.

@nickmorzinski5558

3 күн бұрын

That's a very interesting documentary!

What a gem. Subbed!

I wonder if we could absorb and harness the energy rather than deflect it. A conductive layer of shielding over an array of micro wireless chargers and a base layer of conductive shielding. A layer of h2o would further absorb any residual particles and dually act as a salt water capacitor. A regulating circuit to sense the incoming voltage and charge a stepped down high voltage capacitor bank. The capacitor(s) would then drain to charge the onboard batteries For very large bursts of energy we could include a switched drain circuit powering the tesla coil like shielding. For directed energy weapons with smaller implications a general use shield could incorporate this and power up a tungsten or quartz headlight to dissipate the energy.

A third problem are the collisions with the interstellar medium with a rapidly moving spacecraft. I'm working with the Breakthrough Starshot communications team, looking at how to communicate with laser-driven sailcraft moving at 0.2c. Erosion due to the ISM is a significant problem.

@debrainwasher

20 күн бұрын

This is a correct and the effect is well known. The solution can be found in my post above.

Nice one Ben

If this ends up ever being scalable, or if whatever is grows out of this, it would be a huge discovery

The proper conductors and or semi conductors can do things we haven't discovered yet regarding force fields

I love your excellent grammar and pronounciation. And, of course, your contents as well.

Amazing

Awesome.

There are two other older designs that I know of. I have the papers somewhere but I'm moving house so they will be impossible to find for a while. One used long kilometer diameter cable loops with charge flows producing a big but low power magnetic field. This trades size for mass and complexity. Field strength is low but the large field means the particle is pulled to the center of the loop. The habitats are close to the loop. There are too versions. One standing on poles on the moon protecting habitats there and one held circular by cable based mass torsion systems. Two counterrotating cables tethered to the other. Centrifugal force holds them circular at low mass. The other proposed system clads the ship with magnetic sheets and fires a particle beam an the very low angle. The magnetic fields bend the beam around the hull forming a migma sheathe. A electron beam fired astern helps. The result is a sheathe of particles going at right angles to the hull. Any dangerous particles are either deflected or entrained. Both were in the British interplanetary society magazine years ago.

Be interesting to see what they come up with...and if its possible in our lifetime .

The other problem with electrostatic repulsion to stop charged particles, aside from the crazy high voltages needed, is that what stops things of one charge only makes those of the opposite charge worse. Magnets can bend both types aside - albeit to opposite sides, but that's fine.

@diddykong3100

10 күн бұрын

So doubly cool that someone worked out how to navigate round the problem ;^>

A matrix with electric charge over a dielectric region. Their cage-like models demonstrate the principle, but have gaps in the protection. Their solution was to add an additional offset layer. I would instead work with the scale; at the lower limit, they're describing a capacitor. Incorporate electrodes in the lamination of the hull. If it needs a more complicated structure, treat it as a metamaterial problem.

Pardon my question, but what about a hybrid or plasma approach? I was looking at active drag reduction and plasma actuators and plasma control surfaces for some of my designs and I was wondering if an embedded high-voltage/magnetic skin with said emitters would work? Especially if there was a way to print it? The idea to create an intense field to slow or redirect the particles, yes? It doesn’t need to cover the interior, just the exterior.

save materials on magnetic shield by using less magnetic fields to make a plasma to then generate a stronger magnetic field through pulsing that plasma, infact in theory higher magnetic field than any theoretical solid material can! Also use CLOSED cycled water for active cooling of conductors, need more water then but you will need more water for added radiation shielding since the magnetic didnt get to 100%, also other uses for water..

Deflecting particles instead of slowing them down is a simple but genious idea no one thought about until recently.

Great video, and exciting ideas! Maybe we'll actually "make it out there" one of these days. I've always thought it's our "natural next step." It's all out there just waiting for us - why stay cooped up in the house we were born in?

Very cool!

Radiative barium sulfate paint allows cooling to just 60 kelvin, so you can use superconducting shields even in the inner solar system. Magnetic systems do more to deflect high energy cosmic rays than the electrostatic system, I would imagine, but I'm curious to see where this tech goes in any case

Very interesting!

You should check out the Boeing patents for the plasma shield. Pretty cool way to tank particles and all kinds of stuff. No details but I think it uses lasers to create a plasma and devices to control the magnetic fields to form the plasma into a shield. Stops bullets and even photons.

I would love to see the grid tested at various angles, perhaps those results are hidden for further development

Fun story: when I was younger I was walking down the street and I suddenly felt a sudden pain and a burning sensation on my leg, felt in my pocket to where it was nothing in my pocket, looked later at an oval shaped mark (baseball sized) I’ve come to realise that there was a good chance it was something from the sun or one of these particles flying to earth, through the atmosphere, towards my town, to the street I was on and miraculously hitting me. Crazy

On one hand, I would not have thought cooling in space was a problem since space is cold. On the other hand, I wonder how feasible it would be to use space to cool superconductive materials. If there is heat transfer to space then I supposed it must be radient because there are probably not enough particles to relay on a conductive approach. It would be interesting to hear you explain whether or not the concept of space cooling of superconductors is feasible.

It makes me happy just to know that some day astronauts will be able to say "SHIELDS UP!"

I got some bad news: two of those deflector shields will still give 50% shielding. Just look at the image, it's brighter in between the shadows. Instead, you'll probably want something with concentric circles, so that particles will be deflected to the side, rather than in between the gaps of a grid.

This isn't my field, and I am new to the channel so forgive my ignorance but would it be possible to reduce the drain on the craft's power by converting some of the high energy particles into a power source to at least power the shield?

So it seems that deflecting ability increases with voltage applied. Divert power to deflectors, indeed, Mr. Spock.

@DrBenMiles as an accelerator physicist, by and large I liked your video. However, I do have a comment about you saying what is achieved by old school particle smashers only being in the MV range, especially when showing what appears to be a synchrotron animation. What you said was true about electrostatic fields ie Van de Graaf accelerators, etc. However cyclotrons and synchrotrons are not limited to the MV range. Otherwise we wouldn't have TeV protons at LHC at CERN. The difference is time dependent fields in microwave cavities, that can get up to TeV energy gains with a closed loop or GeV energy gains in linear systems like SLAC. If you were, however, talking about accelerating gradients, in units of energy per unit distance, MeV/m, for example, you would be roughly correct. Our best microwave accelerators still only have gradients around a few 100MeV /m. Luckily we have plasma acceleration, dielectric accelerators, etc, which push the gradient up to GeV or even TeV per meter. It may be possible, with enough plasma density and energy in a laser pulse or particle beam, to get up to EeV or ZeV / m gradients before the high energy density physics gets so interesting that the plasmas are too unstable to provide that gradient over an appreciable distance. Good luck out there!

Perhaps finding a way to get them to work in tandem. Radiation is still energy, if it could harnessed, the deflected rays energy used to help power the magnetic shield, be interesting. ^.^

I've come up with four force field systems, the first is the same as Bell labs a static discharge, the second electromagnetic induced eddy currents in incoming metal, the third graphene balloons, the fourth using high frequency increasing amplitude longitudinal mono-polarised waves that would combine at a certain distance, as higher amplitude longitudinal waves travel faster than lower amplitude ones.

14:26 One step beyond is the RAM-scoop. Deflect the particles into a material chamber, and expel as thrust on the back end of the vessel. Mere field tech and hardly new actually. 14:51 They can use a mere cyclotron for testing purposes. In nature NTL (near transfer of light) hadrons are unlikely. If any vessel is moving at like 0.1 LS (c) the particles they encounter the most would not exceed 0.2 LS, which can be created artificially by a cyclotron. Specially single protons. The problem isn't these charged protons, but the actual non-charged colloidal matter particles. They'd need ionisation before they can be deflected by any field.

Someone is going to say "Awesome! We have energy shields now!", thinking that these shields will protect our spaceships from enemy weapons fire. NOT! This shielding will only deflect harmful particle radiation, up to a certain energy level. It will not stop lasers, missiles, bullets, fast moving meteors, or even slow moving ones. And if the ship is on a collision course with an asteroid, better change that course as quickly as possible; otherwise the ship will be like a splattered bug on the surface of the asteroid. For particle radiation deflection, this is actually a great breakthrough. As we continue to develop the technology, it will soon be miniature enough to be practical on all spacecraft. The biggest obstacle to its practicality is at this time, weight, which adds more to what the ship's thrusters must accelerate to the desired speed, meaning more weight in the form of fuel and its containers. Now there is some promising experiments concerning massless thrust, but it is still in its infancy! Still there have been some small amount of successes in the studies and experiments. If these two technologies become practical, and can be used in one ship at the same time, it will revolutionize the space travel industry.

@Nidvard

21 күн бұрын

Weight of the system is one thing, but also the weight of any energy production to keep this up. To get the weight into place can soon be done rather easily when starship becomes viable. And if this is used for a interplanetary transport system the logistics of weight becomes less significant, also because such a transport system can be set to an continuous orbit with intercepts both earth and mars

@bgsmember3650

21 күн бұрын

Unfortunately, kinetic barriers (to protect against kinetic weapons or asteroids) may not be possible, unless there are new physics yet to be discovered.

@Nidvard

21 күн бұрын

@@bgsmember3650 more or less all weapons used in human history are kinetic weapons.. And we have good ways to deal with those, it's a new invention called "wall"

electrostatic mitigation of lunar dust and martian dust on solar panels is an old thing yet we speak today as if these are still discoveries to be made, how does that relate to shields? Perhaps these are also ahead of mainstream the way military tech is often ahead of commercial..?

@Nidvard

21 күн бұрын

This does not relate to shields. Military tech gets their components from the same factories that produce components for commercial products.

This Doctor has the coolest Liverpool Accent. I thought I was listening to Ringo Star teaching astrophysics.

So they made an electrostatic shield at a 3M (sellotape and film) factory by accident. There's a few snippets of info about this out there, but it happened before the Internet was popular. I'd love to see a proper mini-doc on this as most vids here on KZread are very short.

meanwhile ernst brüche, tektronix and basically every CRT based oscilloscope has used electrostatic deflection the math behind hit is well understod. the ability to deflect beams of high energy with low potential fields has also been known about and used for well over 100 years now. The only novel thing i have seen is the idea to create an electrostatic lens array that reduces the total radiant power at a large distance.

32 Mev/m is not the record for rf high energy accelerators. Your number likely comes from recent superconductor cavities, normal conductor in copper rf cavities have performed at gradients up to 3x this running at over 100Mev/m. I worked on tests at Slac often with these cavities.

Would a bunch of strong neodymium magnets lining the habitat be enough to protect you inside?

High energy particles... Seems to me. We could use the energy to reinforce the magnetic Deflecting shield. Using the particle against itself. The stronger the particles.. the stronger the shielding. So you need like a particle collector into a reactor. Which is turned Into Plasma Energy..? Idk.. Mind swirling stuff. Cool to think about.. Constructive interference Waves. Thanks for the update. A Veteran 1Cav. Age 67.

I had heard that there was a third off shoot to the other two approaches that involve injecting a plasma into the charged area that enhances the effectiveness of the electrostatic approach because the particles of the plasma have their own mass and charge too. Could you add a video addressing this other approach? I think they call it the artificial magnetosphere method.

why not combine both approaches. Have the magnetic wrapped by the electrostatic deflection. Both could be at lower power/magnetic levels and offer the same deflection hopefully combining the advantages of both rather then the disadvantages of both.

What if you place charged shield deflector far away from the craft, essentially scatter anything coming in and diffuse with distance Eg bigger shadow Is most of the radiation from the sun, could you more heavily protect that side and save the budget on the other sides

The shape of the shielding on the electrostatic model makes me suspect that the particles that would have struck the shielded areas are simply being directed onto the unshielded areas. That's fine if you can shield the entire region occupied by the spacecraft, but layering offset shields won't do the trick. Particles that pass through the unshielded areas of the first layer would get redirected into the unshielded areas of the 2nd layer. The only way laering would work is if you can preferentially redirect incoming particles in one direction. Each layer redirects away from the spacecraft in the center, so whatever particles that get through one layer have a chance to get redirected away by the next. IDK if that's possible or not.

Uhm pretty sure we are already fielding experimental plasma shield on the battlefield. I read an article saying that boeing had a system it was testing on abrahams tanks. Its thin panels of explosive charge on all sides of the tank and some kind of radar or ultrasonic detection system surrounding the tabks peripheral. When it detects an incoming rocket, it detonates the plates facing the munition, yhis produces a shockwave of compressed atmospheric gases. Then microwave emitters send out a powerful pulse in the same direction, the pulse ionizes the shockwave of compressed air creating a wall of plasma that detonates the incoming munition at a safe distace that wont penetrate the tank armor. Im not sure if they are fielding this yet or if it was just in testing stage, but i do remember it was boeing that was developing it. Not sure how useful it would be in space without atmosphere to create plasma but it's still pretty interesting tech for here on earth, hopefully they find something more positive to use it for besides warfare 🤷🏽‍♂️

With the grid technique is the total radiation quantity reduced or is it just redirected into a quilt pattern?

Either i misunderstood the concept or i will have to adress the elefant in the room: If this shielding does create a fine pattern of "shadows", it will also create a corresponding pattern of more concentrated radiation, as it is based upon small angle deflection. Thus it would be impossible to just stack two of these shields together to diminish leakage :(

The most hypothetically phieasable mode would look like Alpha at CERN as it could in theory turn the subatomic particle into energy, namely X-ray energy, upon contact and annihilation.

I was wondering this could be used to easily shield moon bases or mars habitat, or if just pile of regolith is the way to go?

Am I totally out of it or does the shifted/2 stage version really work - or even the concept itself at scale ? I understand that deflected parcticles are exactly that: deflected, then keep on going in the non dark region (assuming about twice the density for a "50% efficiency" stage), but then the second stage just moves the beams of particles again... it's like two sieves in a row : that is not water tight...

Radiation and high velocity impacts too. One step nearer interstellar travel...

The further you are from a magnetic field, the further your own magnetic field extends. A spacecraft in deep space could have a deflection region several AU in diameter while it is in interstellar space, and we don't really have a way to test that on Earth outside of computer modeling. I wonder if a design could take advantage of this property in order to deflect particles using drastically lower force, just by deflecting them for a longer period of time while also not needing to alter their angle as much.

Perhaps the solution is a huge bouncy-castle kind of space station that is inflated to it's final shape with water, a great radiation shield, micrometeor shield, and important to life when consumed or given to plants.

@peoplez129

11 күн бұрын

That's not a solution at all, that's just more logistical problems and weight.

If I stopped time and said that point right there . And pressed play again in one hour we have traveled approximately 820,000 kms. Yes we are traveling at 820,000kph in one direction in particular from that point .

It would be nice to use the energy of those photons as we slow them down.

Would a material that could exploit these properties of deep space be made/ exist. The idea bebing so as to harness the energy from these particles as a energy source or even as a means of propulsion. Surely this would be more efficient instead of fighting these properties of space, maybe we could utilise them?

Through the vacuum space, would the electrostatic shielding electrodes not leak a substantial amount of current?

Use a pulsing magnetic field to capture the particles in a magnetic flywheel configuration to use the energy to charge ions for ion engines

@peoplez129

11 күн бұрын

And what happens when you have nothing to use the excess energy for. It's called an overload. All you'd really achieve is something that creates a charged band of particles rotating around the ship that keep building and building in energy, which will take the form of heating the ship, until it gets soo hot something fails, and then all that heat gets released at once, catastrophically. It's not a shield at that point, it's a self destruct mechanism.

One other thought - The deflection changes the momentum of the particles it deflects, thereby imparting an equal and opposite force on the ship. Would it be feasible to use this as some sort of engine (or at least engine assist)? That would be cool. Kind of like killing two birds with one stone (thrust plus shielding).

@lafeechloe6998

19 күн бұрын

That's litteraly the concept of solar sail but with extra steps

@donald-parker

19 күн бұрын

@@lafeechloe6998 yes-ish. But I’ve never heard of using solar sails as shielding. And solar sails are only trying to catch momentum in the direction they want to go. You could use this concept for steering (as well as shielding) even if the particles were almost head on. I am assuming you need shielding from pretty every direction. But you could choose how to divert those particles in a way to help navigate

i wonder if we will develop shielding, even if it can only be used more or less in space

ahhh this clicks with a statement made once about allegedly alien space craft material that had woven mech like structure. Because the cube sample will transform in to a woven/knited like material when scaled up and i believe the closer the electrodes the stronger the fields... Quickly someone knit me some particle protection fabric...oh wait siera space is already knitting space station :D

Cool. we need to start working on it. Arthur C. Clarke & Stephen Baxter wrote a Book named - Sunstorm. the sun shield concept is widely discussed. actually it's part of a Trio named - Time's Eye, Sunstorm & Firstborn. Wonderful audiobooks online by John Lee.

The CME threat it real, unlike the climate. The technology for static, EMP, lightning, and transients protection can work on power plants and substations, but we are not doing it.

This could be used as part as fighter jets to reflect lazer weapons