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All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

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Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#101

Post by KennyBlanken »

echelon wrote: post #56
Bender wrote: post #46

Earlier quoted context omitted.

Photocopiers smell like ozone when they run if anyone’s forgotten the smell Those are similar but sweeter. If I sterilize a room with UV it has a very distinct smell like nothing else aside from lightening and stun guns. I would UV the bathroom right now but then I have to vent the entire house and its 34F outside right now.

I don't think any of you should want to be smelling Ozone. Diatomic oxygen is already a highly reactive fuel that is killing us and giving us cancer every single day. The ozone species is even more oxidative. Oxygen is how we move about the energy gradient, but it's also killing us. Ozone is worse. "Air purifiers" with ionization are probably not worth the squeeze.

The permissible exposure limit for ozone is 0.1 PPM.

The IDLH (Immediately Dangerous to Life and Health) level for ozone is five ppm.

That's half of chlorine which is 10 ppm.

Most major brand air purifiers put out a very minimal amount; the ionization is beneficial because it makes the really tiny (and thus most hazardous) particles clump and fall/stick to surfaces faster.

It's the offbrand units that generate lots of ozone to make people think they're "doing something", and commercial ozone generators for car/room deodorizing, that you have to be extremely careful with. Those need to be set up and then the room left for hours for the ozone to react with stuff, and then ventilated thoroughly.

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#102

Post by KennyBlanken »

Bender wrote: post #46
coffeebeqn wrote: post #42

Earlier quoted context omitted.

Photocopiers smell like ozone when they run if anyone’s forgotten the smell

Photocopiers smell like ozone when they run if anyone’s forgotten the smell Those are similar but sweeter. If I sterilize a room with UV it has a very distinct smell like nothing else aside from lightening and stun guns. I would UV the bathroom right now but then I have to vent the entire house and its 34F outside right now.

The only thing you're doing by sterilizing your house like that is making your immune system weaker.

Humans are built to withstand a constant assault on their immune systems. We couldn't have survived if we didn't.

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#103

Post by imglorp »

nomel wrote: post #88
imglorp wrote: post #33

Earlier quoted context omitted.

Or effective decontamination performed in the airlock. There was a recent demonstration of an electrostatic repulsion device reducing dust on suit fabric which might help with sticking. And an air shower like used for clean rooms does not seem too far out.

Is that required? Could the suit itself be used as a type of airlock, to leave outside things outside? For example, mounting yourself onto a wall, then the back/whatever of the suit opens to the inside, and you hop out? (yes, there would be some dust recovery required, but minimal in comparison)

The challenge with the "suits stay outside" model is that you basically need some kind of airlock between the suit hatch and the ship hatch. You might imagine both hatches get contaminated when the suit is detached. Then when you dock, that whole between-hatch space needs to be decontaminated before you can open the two hatches, because the outside of the suit hatch brought that stuff into the airlock.

Someone else linked to this: https://en.wikipedia.org/wiki/Space_Exploration_Vehicle#Spec...

edit: in that context^ search for "SEV suitport design" find NASA has written some docs on the matter, eg https://ntrs.nasa.gov/api/citations/20130013652/downloads/20...

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#104

Post by LoganDark »

Bender wrote: post #46
coffeebeqn wrote: post #42

Earlier quoted context omitted.

Photocopiers smell like ozone when they run if anyone’s forgotten the smell

Photocopiers smell like ozone when they run if anyone’s forgotten the smell Those are similar but sweeter. If I sterilize a room with UV it has a very distinct smell like nothing else aside from lightening and stun guns. I would UV the bathroom right now but then I have to vent the entire house and its 34F outside right now.

Brushed DC motors (as in some drills, toothbrushes, etc.) emit ozone. Some light switches also create ozone-producing electrical arcing if you hold them perfectly between the on and off positions, or slowly cross the midpoint. (Less easy with the newer-style, less accessible rocker switches.)

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#105

Post by tim333 »

ozgung wrote: post #76
tim-tday wrote: post #20

Earlier quoted context omitted.

Yeah, the ground on mars is literally toxic. Makes the concept of a Martian colony less appealing. Almost equal to a floating station on Venus. At least there you’d have the correct pressure. I seem to recall that the temperature on Venus at an altitude of one atmospheric pressure is manageable. It’s just also acidic. Possibility easier to deal with than perchlorates.

Sadly we underestimate the liveability of this Earth. Muskism makes people believe to the false premise that we can just buy a new planet, make it habitable with magical tech. Supported with pseudoscientific buzzwords like Terraforming etc. So we can recklessly consume this planet and jump to our new home when this one depletes. No need to care about our current home because it's a jumping board. Interesting as an ol…

Musk was also into the solar panels and EVs so it's not all trash the planet. Even if living on Mars or Venus isn't practical we might develop interesting tech trying.

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#106

Post by VoidWarranty »

KennyBlanken wrote: post #102
Bender wrote: post #46

Earlier quoted context omitted.

Photocopiers smell like ozone when they run if anyone’s forgotten the smell Those are similar but sweeter. If I sterilize a room with UV it has a very distinct smell like nothing else aside from lightening and stun guns. I would UV the bathroom right now but then I have to vent the entire house and its 34F outside right now.

The only thing you're doing by sterilizing your house like that is making your immune system weaker. Humans are built to withstand a constant assault on their immune systems. We couldn't have survived if we didn't.

Careful. The venn diagram bubble depicting your statement overlaps heavily with the anti-vaccine bubble.

Its a bit naieve to claim that cleaning one's home will result in an extinction of enough microbes so as to be threatening to our immune system.

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#107

Post by Gigachad »

tim333 wrote: post #105
ozgung wrote: post #76

Earlier quoted context omitted.

Sadly we underestimate the liveability of this Earth. Muskism makes people believe to the false premise that we can just buy a new planet, make it habitable with magical tech. Supported with pseudoscientific buzzwords like Terraforming etc. So we can recklessly consume this planet and jump to our new home when this one depletes. No need to care about our current home because it's a jumping board. Interesting as an ol…

Musk was also into the solar panels and EVs so it's not all trash the planet. Even if living on Mars or Venus isn't practical we might develop interesting tech trying.

Wasn’t the solar panels thing just some financial fraud scheme?

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#108

Post by Bender »

rrr_oh_man wrote: post #99
Bender wrote: post #46

Earlier quoted context omitted.

Photocopiers smell like ozone when they run if anyone’s forgotten the smell Those are similar but sweeter. If I sterilize a room with UV it has a very distinct smell like nothing else aside from lightening and stun guns. I would UV the bathroom right now but then I have to vent the entire house and its 34F outside right now.

Side quest: Can you tell more about the UV sterilisation thing? Why do you do that? How often? Where? It seems like such a specific thing to do.

I primarily use them in the bathroom to kill off mold and bacteria about once every 3 months. I open up the water heater closet, drawers, etc... then I fire one of them up. I've used them in other places but the more they are used the more I have to vent the house.

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#109

Post by Bender »

KennyBlanken wrote: post #102
Bender wrote: post #46

Earlier quoted context omitted.

Photocopiers smell like ozone when they run if anyone’s forgotten the smell Those are similar but sweeter. If I sterilize a room with UV it has a very distinct smell like nothing else aside from lightening and stun guns. I would UV the bathroom right now but then I have to vent the entire house and its 34F outside right now.

The only thing you're doing by sterilizing your house like that is making your immune system weaker. Humans are built to withstand a constant assault on their immune systems. We couldn't have survived if we didn't.

Don't worry I know what I am doing.

Re: All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

#110

Post by aaron695 »

krunck wrote: post #9

Mars has toxic levels of perchlorates in the regolith. That will require that humans never come in contact with the regolith or things that touched it. Those space suits that dock to vehicles seem like a necessity. https://en.wikipedia.org/wiki/Perchlorate#On_Mars

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