That would be passenger carrying trains and passenger-carrying bicycles?
Magnesium has been used repeatedly as a structural metal in aircraft since... world war 2, at least.
Sure it's a pig to put out. But by the time that the structure of a plane is burning, you're in a massive multiple fatalities situation (like, survival happens by luck, not planning, judgement or personal actions). and you've already lost structural integrity and control of your fuel.
Granite in general is corroded by water - I'll leave aside the faults and fractures for the moment.
Intense weathering can reduce granite to essentially a powder of (bleached) micas and quartz grains in a mush of kaolinite clays. In tropical soils, this may take millions of years, but following the chemists rule of thumb (10degC increases in temperature doubles reaction rates) and the fact that many granites generate large fluxes of hot (300-500degC) water as they cool, you won't be surprised to learn that many granites in their natural state do have significant permeability due to corrosion that was implicit in their intrusion. (The same is often true of basalts - you really need to get the volatiles away from a magma really quickly if you want nice fresh crystals. And you need to cool the rock pretty damned quick.) The process is variable on a scale from millimetres to kilometres. You can see a corroded part of a grain next to an uncorroded part in a 200x microscope field of view, and you can (I've helped people do this) map corrosion fronts over kilometres of mountainside. That's typical of geology. Nothing is pure, and nothing remains the same for more than a few inches.
In some cases, yes, the granite can be left with such a porous structure that it can host hydrocarbons (there are a number of Vietnamese discoveries which were undergoing evaluation the last time I worked for that client, and they were a popular topic of discussion in the late 200x's industry journals, so I'm sure other people than that client had discoveries).
Is the un-fractured low permeable granite selected for if the water is also under pressure?
On the scale of the human body, unfractured granite is pretty rare. Even in the local granite quarries, the quarrymen have quite a struggle to find an unfractured block of more than 2m by 2m by 2m. Fine joints caused by differential cooling stresses are typically on a spacing of a metre or so.
That is exactly why the Finnish design (and others, including the UK's repeatedly shelved designs to put repositories into impermeable sandstone-mudstone sequences) includes the primary containment (sealing the waste into fine-grained, low permeability concrete), the secondary containment (stainless steel drums into which the concrete-waste was was poured), the tertiary containment (bentonite or other clay tamped around the drums) AND the quaternary containment - drilling holes into granite, then blowing bigger holes in it with drills and explosives.
The very process of making a big enough hole to put your blocks of primary, secondary and tertiary containment will make permeability in your quaternary containment. These are not engineered materials you're making holes in, they are variable natural materials.
The engineering and geology of waste repositories isn't particularly difficult. The difficult thing is the politics, and in particular, being sure that the politicians will continue to pay appropriate funds to maintain the quality of the containment system. Which is why I have for decades posited that the ideal place for the UK's HLW waste is in the London Clay (a thick, low permeability claystone), with the entrance through the Houses of Parliament. Specifically so that the first people to die knee-deep in radioactive green slime will be politicians. Our Parliament has been stable in this approximate location for about 20 half-lives of Caesium 137, so if it stays there for a similar time, the radiation will have become a much less severe problem.
I believe that America (and Sweden, and Finland) have also encountered political problems with their various waste repositories. I'm not familiar enough with the geology of the eastern edges of the Appalachians (includes Washington DC) to suggest a good location near there. Sorry, you may need to move your capitol in order to put the fear of death into your politicians.
I used to write to D(ave) Evnull on the letters/ help pages of... one of the early (UK) PC magazines. This was about the time that I was considering whether to buy a copy of Xenix, or of Coherent's SVR4-a-like... then some crazy Finnish dude came up with a variant on Minix with extensions to use the 80386-DX I'd recently invested 3 months wages in.
Co-founder of MITS, the company that built the Altair Computer, the first real hobby computer.
... which wasn't available in my country.
I still have that January edition of Popular Electronics.
Which I've never seen on a news stand in this country. And indeed, doesn't seem to be available here.
Now hand in your nerd card, it's important that nerds have a basic understanding of Nerd History.
Actually, I've got a pretty good understanding of Nerd history, I just don't pay large amounts of attention to foreigners whose products I won't be able to get.
I did try to persuade Dad to let me buy a part-work which promised a home computer in this country in about 1976, which may well have been inspired by the Altair. Having just researched it a little, I'm probably thinking of the MK14, which is listed as a 1977 product. The £40 price tag would have been about 2 years allowance for me, and I wasn't allowed to work for cash outside the home until 1979.
In short, yes it is perfectly reasonable to be, and remain a geek, and not know who Forest Mim(m)s is or was.
On the other hand, since I routinely carry multimeters, probes, electronics, lenses, rock samples and other junk in my baggage for flying, I have long since given up on trying to fly without putting my baggage in the hold. It's just a facto of life one got used to in the 1990s with the continuing threat of terrorism (I notice that the threat hasn't been improved by the repeated "Wars on Terror").
The trigger warning that YOU require is on the clue-by-four whose ballistic impact with your head was triggered by your use of the phrase "trigger warning."
well I've known that as long as I've been seeing his attempts at science journalism. But does he actually have anything of interest in this article?
I didn't actually know that "NASA/Arizona State University," had an online, high resolution "Digital Petrographic Slide Collection" ; not surprising. I'll dig into that more. Nice pictures. The fascinating corrosion textures on the surface of the glass grains really raise a lot of questions. Which Ethan doesn't notice. (OK - I'm biased - I was repairing a petrological microscope for the last couple of days. But the textures are obviously weird.) Perthite textures in what are described as glass grains also go completely unremarked, though that is probably the reason the photograph was taken in the first place.
But these rocks (soils if you prefer) are interpreted as the results of fire fountains playing in lava eruptions of the lunar past. Which is great - except... what drives fire fountains? The exsolution of volatiles and their concentration into the upper parts of magma chambers. And the amount of this material that Schmitt and Cernan found indicates that it's a rare circumstance producing a rare deposit.
So, this tells us what about lunar igneous petrogenesis? That after considerable concentration, the low levels of volatiles (not just water) in lunar bulk material can be concentrated to levels similar to those in magmas on Earth.
Which doesn't actually tell us very much that is new. Which is probably why the paper he references is from 2011 (and paywalled, with everything in the article coming from the abstract. Implying a lack of institutional access to one of the premier science journals of the world.
What I'd like to know - and is completely unaddressed by the article, is just why these images are being re-processed and uploaded onto FLIKR or FACEBOOK !!! instead of there being a NASA image archive from which the originals (or their highest-available resolution scans) can be downloaded. That seems... almost designed to fuel conspiracy theorists. But this appears to have escaped Mr BangsWhenItStops.
Who is Ethan Siegel? Here we know him as TooLowAnOctaneRating. On his Frobs column he asserts he is "professor at Lewis & Clark" (assumed present tense, as no indication there of a change in tense), but http://college.lclark.edu/depa... doesn't list him. Odd that. Though he was a visiting professor there in 2010 (their search engine is down at the moment). Which is very much in the past tense, according to my calendar. What about his "NASA columnist" claim... Ah, it seems he wrote for a kid's site called "The Space Place" ; again, past tense.
So basically, he is, as his posting pattern already suggested, a jobbing blogger trying to earn a crust from clickbait adverts. Which is a profession, of sorts. But he certainly doesn't seem to be contributing to science any more.
Which trade unions have you been a member of where this is true? All the unions that I've been an activist for have been extremely for public education, and specifically the education of their members. OK - one of them was the National Union of Students, which is actually involved in the education industry, so you'd sort of expect an involvement in education. But the others (in the engineering and energy industries) have been as vigorously involved in and promoting of education for the workers and their families.
Or - is it just possible that you've never actually been a member of a trade union, and don't actually know that you assert to be true.
Yucca is pumice and volcanic ash, you *need* granite for a serious facility.
I don't know the details of Yucca, nor do I care (I'm not an American and don't see any need to go to America to steal their money), but I'll take your word for it that it's a crap site. Worst of the worst.
What you want from a waste storage facility is low permeability of the ground to water viz, for a set bit of geometry and pressure difference, you only get a low flow of water through the unit you're considering. Granites can be low permeability - if they're not fractured or heavily corroded. And if they are fractured or corroded, they can have high-enough permeability to be profitable as oil reservoirs. I've worked on evaluating exactly such fields. However many other rock types can also be low permeability. In particular, claystone sediments can have very low permeability AND have the additional advantage of a high Cation Exchange Capacity (CEC), which means that ions in the small amount of water that does move through them have a tendency to absorb onto the surfaces and interior of clay minerals, which immobilises them. An additional benefit of clays, in general, over granites is that if you develop a fracture in a clay then very frequently the movement on the fracture generates a filling of finely-ground clay... which still has a low permeability.
I note that the description of the FINNISH waste repository has the repository being dug into granite, but the waste being buried in (bentonite) clay within the segments of the mine.
No, it's two factor authentication - something you have (a particular phone) and something else which you have (connection to a mobile network). So for me, that's a non-starter.
200 years ago, a large part of the population couldn't even read properly.
If you look at the concept of functional literacy (as opposed to strict literacy versus complete illiteracy), then you'll find that there are still high levels of functional illiteracy in the western world.
Definitions vary, but functional illiteracy rates remain in the tens of percent of the populations. That's tens to perhaps a hundred million in the US, and some tens of millions in the UK.
I know for a fact at least that bacteria are promiscuous [sciencemag.org] and can pass on genetic material to other bacteria
... and that's where it falls down. This might change the lifestyles of his bacterial commensal flora. But it's not going to change him because his eukaryotic cells won't take a DNA transfer from the prokaryotic cells of the bacteria.
Did you ever put diesel into your petrol car? Didn't work too well. Now try putting diesel into your AutoGas car (propane/ butane mix) and you're getting to a better comparison. I'll just stand on the other side of this solid building while you try it.
Speaking of which, are all our H1b buddies from India required to convert all their dollars back to rupees on return at horrible official exchange rates? Another trick in this scam is to forbid keeping the dollars.
What is the official rupee:dollar exchange rate? What is the unofficial rate?
From what I can see, there's no significant difference between the two. Which would suggest that you don't think about things very carefully, and that colours the whole of the rest of your post.
... choosing a text book and working through it from chapter 1 to chapter 20?
Or, of course, if you've written a textbook yourself, getting a colleague to require it for his course 100 miles away, while you recommend her text book.
Vehicular transport makes up about 20% of oil use.
Oh, but you knew that already. You just wanted to say something else for some other reason.
There are plenty of interesting things about EVs, and plenty of horrible things about oil barons. But this isn't a valid link between them. Oil barons have much bigger things to worry about than the replacement tomorrow of every vehicle in the world with an EV.
Super-capacitors are already extremely reliable and affordable,
Citation - preferably a manufacturer's data sheet of something that is actually in production and tells me how many of these I'll need for what application.
they can't really store a whole lot of power at present
I'm not sure that that means what you think it means. Any device which stores power would be a novelty. Sure we've got tons (literally) of devices that store boring old energy. but something something that stored power... that would be novel.
They virtually don't degrade (1 million charge/discharge cycles without degradation have been shown),
At 50 Hz, that would be about 5.5 hours. Enough to get me 300-odd miles at truck speed.
You know, I'm sure I'd have seen the replacement adverts at motorway truck stops, but they just don't seem to be grabbing my attention in the way that tyre adverts do.
FTFY
Well, actually, at these Ts and Ps, and particularly with a low partial pressure of metals (astronomer sense : anything that is not hydrogen or helium), a dilute solution of supercritical iron vapour in supercritical hydrogen-helium vapour. But that's probably what makes it hard to calculate - working out the equation of state for the phase change at those Ts and Ps.
It would have to be far, far colder to support liquid helium at normal atmospheric pressures.
In fact, these Ts & Ps would put the helium far into the supercritical realm. At which point the distinction between liquid and gas is a bit irrelevant.
Although the linked reports and the original source website don't mention it explicitly, all of these reports are about the use of private CCTV and therefore can only be about events recorded on private property. Private citizens and organisations (e.g. businesses) are not permitted to take CCTV recordings of public areas (with a very limited exception for the immediate - a few metres - area of your own property ; the world outside the windows of your vehicle is allowable in as far as it affects the vehicle's safety, so dash-cams are permitted, but parking your van outside the gates of the prison to video everyone going to and fro wouldn't be evidentially acceptable).
Therefore, before you come into the (literal) focus of these systems, you have already chosen to go onto private property, and to subject yourself to the whims of the owner of that property. That is why car parks etc all have definite signs posted stating the terms and conditions of your use of that land. It wasn't that long ago, for example, that the owner of a piece of land could impose a £300/day parking charge on the land, and tow the affected vehicle away pending settlement, and that was perfectly legal. (It was never legal in some parts of the country though. Scotland for a start.)
Quite what the legality of sharing the pictures between members of the group is, I'm not so clear on. Probably it's perfectly legal, as long as the appropriate signs are in place on all the private property covered, and the people and organisations involved have a contract covering purposes, use restrictions ("no ogling"), and a data disposal and dispute resolution policy. Other than that, I don't see that there is anything that people can complain about.
Of course, if you don't like this, then you are free to watch out for the signs (typically on or near doorways, and scattered liberally around parking areas) which have comments like "this area is covered by CCTV and images may be stored and retained for crime prevention and other purposes" (the exact wording varies); typically the same signs carry wording denying the landowner's responsibility for any of your goods and chattels (purses, wallets, cars) under any circumstance. And if you see such a sign, refuse to use the business associated with it, and tell the manager why. It's called "market forces" ; try to bankrupt them. I doubt that most of them will cry over losing your business.
In principle, how is it any different from sharing photos on Facebook?
Wrong comparison. Facebook is, to all intents and purposes, public. This is explicitly a private undertaking and general members of the public will not be allowed to access the data without signing the appropriate contracts undertaking what uses the information will be put to. So, if Raja's Corner Shop signs up for it, and Mr Raja's employee Mr Humphries uses it to ogle Miss Brahms' tits, then Raja may lose access, and pay a fine, while Humphries gets arrested for computer mis-use and sexual thought-crime.
Slashdot Mirror
... let them have it. It's not as if music is of interest to anyone important.
Or maybe it means that the .AU government know that their security is fatally flawed, and this message comes from the thieves.
If you can't get hold of FOOOF.
Above are formulae, not sound effects.
[Puts another entry onto the the bucket list. Somewhere above "deal with the 12kg of mercury in the shed".
Magnesium has been used repeatedly as a structural metal in aircraft since ... world war 2, at least.
Sure it's a pig to put out. But by the time that the structure of a plane is burning, you're in a massive multiple fatalities situation (like, survival happens by luck, not planning, judgement or personal actions). and you've already lost structural integrity and control of your fuel.
Intense weathering can reduce granite to essentially a powder of (bleached) micas and quartz grains in a mush of kaolinite clays. In tropical soils, this may take millions of years, but following the chemists rule of thumb (10degC increases in temperature doubles reaction rates) and the fact that many granites generate large fluxes of hot (300-500degC) water as they cool, you won't be surprised to learn that many granites in their natural state do have significant permeability due to corrosion that was implicit in their intrusion. (The same is often true of basalts - you really need to get the volatiles away from a magma really quickly if you want nice fresh crystals. And you need to cool the rock pretty damned quick.) The process is variable on a scale from millimetres to kilometres. You can see a corroded part of a grain next to an uncorroded part in a 200x microscope field of view, and you can (I've helped people do this) map corrosion fronts over kilometres of mountainside. That's typical of geology. Nothing is pure, and nothing remains the same for more than a few inches.
In some cases, yes, the granite can be left with such a porous structure that it can host hydrocarbons (there are a number of Vietnamese discoveries which were undergoing evaluation the last time I worked for that client, and they were a popular topic of discussion in the late 200x's industry journals, so I'm sure other people than that client had discoveries).
On the scale of the human body, unfractured granite is pretty rare. Even in the local granite quarries, the quarrymen have quite a struggle to find an unfractured block of more than 2m by 2m by 2m. Fine joints caused by differential cooling stresses are typically on a spacing of a metre or so.
That is exactly why the Finnish design (and others, including the UK's repeatedly shelved designs to put repositories into impermeable sandstone-mudstone sequences) includes the primary containment (sealing the waste into fine-grained, low permeability concrete), the secondary containment (stainless steel drums into which the concrete-waste was was poured), the tertiary containment (bentonite or other clay tamped around the drums) AND the quaternary containment - drilling holes into granite, then blowing bigger holes in it with drills and explosives.
The very process of making a big enough hole to put your blocks of primary, secondary and tertiary containment will make permeability in your quaternary containment. These are not engineered materials you're making holes in, they are variable natural materials.
The engineering and geology of waste repositories isn't particularly difficult. The difficult thing is the politics, and in particular, being sure that the politicians will continue to pay appropriate funds to maintain the quality of the containment system. Which is why I have for decades posited that the ideal place for the UK's HLW waste is in the London Clay (a thick, low permeability claystone), with the entrance through the Houses of Parliament. Specifically so that the first people to die knee-deep in radioactive green slime will be politicians. Our Parliament has been stable in this approximate location for about 20 half-lives of Caesium 137, so if it stays there for a similar time, the radiation will have become a much less severe problem.
I believe that America (and Sweden, and Finland) have also encountered political problems with their various waste repositories. I'm not familiar enough with the geology of the eastern edges of the Appalachians (includes Washington DC) to suggest a good location near there. Sorry, you may need to move your capitol in order to put the fear of death into your politicians.
I used to write to D(ave) Evnull on the letters/ help pages of ... one of the early (UK) PC magazines. This was about the time that I was considering whether to buy a copy of Xenix, or of Coherent's SVR4-a-like ... then some crazy Finnish dude came up with a variant on Minix with extensions to use the 80386-DX I'd recently invested 3 months wages in.
... which wasn't available in my country.
Which I've never seen on a news stand in this country. And indeed, doesn't seem to be available here.
Actually, I've got a pretty good understanding of Nerd history, I just don't pay large amounts of attention to foreigners whose products I won't be able to get.
I did try to persuade Dad to let me buy a part-work which promised a home computer in this country in about 1976, which may well have been inspired by the Altair. Having just researched it a little, I'm probably thinking of the MK14, which is listed as a 1977 product. The £40 price tag would have been about 2 years allowance for me, and I wasn't allowed to work for cash outside the home until 1979.
In short, yes it is perfectly reasonable to be, and remain a geek, and not know who Forest Mim(m)s is or was.
On the other hand, since I routinely carry multimeters, probes, electronics, lenses, rock samples and other junk in my baggage for flying, I have long since given up on trying to fly without putting my baggage in the hold. It's just a facto of life one got used to in the 1990s with the continuing threat of terrorism (I notice that the threat hasn't been improved by the repeated "Wars on Terror").
The trigger warning that YOU require is on the clue-by-four whose ballistic impact with your head was triggered by your use of the phrase "trigger warning."
I didn't actually know that "NASA/Arizona State University," had an online, high resolution "Digital Petrographic Slide Collection" ; not surprising. I'll dig into that more. Nice pictures. The fascinating corrosion textures on the surface of the glass grains really raise a lot of questions. Which Ethan doesn't notice. (OK - I'm biased - I was repairing a petrological microscope for the last couple of days. But the textures are obviously weird.) Perthite textures in what are described as glass grains also go completely unremarked, though that is probably the reason the photograph was taken in the first place.
But these rocks (soils if you prefer) are interpreted as the results of fire fountains playing in lava eruptions of the lunar past. Which is great - except ... what drives fire fountains? The exsolution of volatiles and their concentration into the upper parts of magma chambers. And the amount of this material that Schmitt and Cernan found indicates that it's a rare circumstance producing a rare deposit.
So, this tells us what about lunar igneous petrogenesis? That after considerable concentration, the low levels of volatiles (not just water) in lunar bulk material can be concentrated to levels similar to those in magmas on Earth.
Which doesn't actually tell us very much that is new. Which is probably why the paper he references is from 2011 (and paywalled, with everything in the article coming from the abstract. Implying a lack of institutional access to one of the premier science journals of the world.
What I'd like to know - and is completely unaddressed by the article, is just why these images are being re-processed and uploaded onto FLIKR or FACEBOOK !!! instead of there being a NASA image archive from which the originals (or their highest-available resolution scans) can be downloaded. That seems ... almost designed to fuel conspiracy theorists. But this appears to have escaped Mr BangsWhenItStops.
Who is Ethan Siegel? Here we know him as TooLowAnOctaneRating. On his Frobs column he asserts he is "professor at Lewis & Clark" (assumed present tense, as no indication there of a change in tense), but http://college.lclark.edu/depa... doesn't list him. Odd that. Though he was a visiting professor there in 2010 (their search engine is down at the moment). Which is very much in the past tense, according to my calendar. What about his "NASA columnist" claim ... Ah, it seems he wrote for a kid's site called "The Space Place" ; again, past tense.
So basically, he is, as his posting pattern already suggested, a jobbing blogger trying to earn a crust from clickbait adverts. Which is a profession, of sorts. But he certainly doesn't seem to be contributing to science any more.
No, it's not. Regiolith is regolith from Reggio.
Or - is it just possible that you've never actually been a member of a trade union, and don't actually know that you assert to be true.
I don't know the details of Yucca, nor do I care (I'm not an American and don't see any need to go to America to steal their money), but I'll take your word for it that it's a crap site. Worst of the worst.
What you want from a waste storage facility is low permeability of the ground to water viz, for a set bit of geometry and pressure difference, you only get a low flow of water through the unit you're considering. Granites can be low permeability - if they're not fractured or heavily corroded. And if they are fractured or corroded, they can have high-enough permeability to be profitable as oil reservoirs. I've worked on evaluating exactly such fields. However many other rock types can also be low permeability. In particular, claystone sediments can have very low permeability AND have the additional advantage of a high Cation Exchange Capacity (CEC), which means that ions in the small amount of water that does move through them have a tendency to absorb onto the surfaces and interior of clay minerals, which immobilises them. An additional benefit of clays, in general, over granites is that if you develop a fracture in a clay then very frequently the movement on the fracture generates a filling of finely-ground clay ... which still has a low permeability.
I note that the description of the FINNISH waste repository has the repository being dug into granite, but the waste being buried in (bentonite) clay within the segments of the mine.
No, it's two factor authentication - something you have (a particular phone) and something else which you have (connection to a mobile network). So for me, that's a non-starter.
If you look at the concept of functional literacy (as opposed to strict literacy versus complete illiteracy), then you'll find that there are still high levels of functional illiteracy in the western world.
Definitions vary, but functional illiteracy rates remain in the tens of percent of the populations. That's tens to perhaps a hundred million in the US, and some tens of millions in the UK.
[Mad cackling comes from the shed at the end of the garden.]
... and that's where it falls down. This might change the lifestyles of his bacterial commensal flora. But it's not going to change him because his eukaryotic cells won't take a DNA transfer from the prokaryotic cells of the bacteria.
Did you ever put diesel into your petrol car? Didn't work too well. Now try putting diesel into your AutoGas car (propane/ butane mix) and you're getting to a better comparison. I'll just stand on the other side of this solid building while you try it.
What is the official rupee:dollar exchange rate? What is the unofficial rate?
From what I can see, there's no significant difference between the two. Which would suggest that you don't think about things very carefully, and that colours the whole of the rest of your post.
(I get 1 rupee = 0.015$ from Google at the moment, and the US State department thinks the unofficial rate in 2013 was 0.016.
Or, of course, if you've written a textbook yourself, getting a colleague to require it for his course 100 miles away, while you recommend her text book.
Vehicular transport makes up about 20% of oil use.
Oh, but you knew that already. You just wanted to say something else for some other reason.
There are plenty of interesting things about EVs, and plenty of horrible things about oil barons. But this isn't a valid link between them. Oil barons have much bigger things to worry about than the replacement tomorrow of every vehicle in the world with an EV.
Citation - preferably a manufacturer's data sheet of something that is actually in production and tells me how many of these I'll need for what application.
I'm not sure that that means what you think it means. Any device which stores power would be a novelty. Sure we've got tons (literally) of devices that store boring old energy. but something something that stored power ... that would be novel.
At 50 Hz, that would be about 5.5 hours. Enough to get me 300-odd miles at truck speed.
You know, I'm sure I'd have seen the replacement adverts at motorway truck stops, but they just don't seem to be grabbing my attention in the way that tyre adverts do.
FTFY Well, actually, at these Ts and Ps, and particularly with a low partial pressure of metals (astronomer sense : anything that is not hydrogen or helium), a dilute solution of supercritical iron vapour in supercritical hydrogen-helium vapour. But that's probably what makes it hard to calculate - working out the equation of state for the phase change at those Ts and Ps.
In fact, these Ts & Ps would put the helium far into the supercritical realm. At which point the distinction between liquid and gas is a bit irrelevant.
Therefore, before you come into the (literal) focus of these systems, you have already chosen to go onto private property, and to subject yourself to the whims of the owner of that property. That is why car parks etc all have definite signs posted stating the terms and conditions of your use of that land. It wasn't that long ago, for example, that the owner of a piece of land could impose a £300/day parking charge on the land, and tow the affected vehicle away pending settlement, and that was perfectly legal. (It was never legal in some parts of the country though. Scotland for a start.)
Quite what the legality of sharing the pictures between members of the group is, I'm not so clear on. Probably it's perfectly legal, as long as the appropriate signs are in place on all the private property covered, and the people and organisations involved have a contract covering purposes, use restrictions ("no ogling"), and a data disposal and dispute resolution policy. Other than that, I don't see that there is anything that people can complain about.
Of course, if you don't like this, then you are free to watch out for the signs (typically on or near doorways, and scattered liberally around parking areas) which have comments like "this area is covered by CCTV and images may be stored and retained for crime prevention and other purposes" (the exact wording varies); typically the same signs carry wording denying the landowner's responsibility for any of your goods and chattels (purses, wallets, cars) under any circumstance. And if you see such a sign, refuse to use the business associated with it, and tell the manager why. It's called "market forces" ; try to bankrupt them. I doubt that most of them will cry over losing your business.
Wrong comparison. Facebook is, to all intents and purposes, public. This is explicitly a private undertaking and general members of the public will not be allowed to access the data without signing the appropriate contracts undertaking what uses the information will be put to. So, if Raja's Corner Shop signs up for it, and Mr Raja's employee Mr Humphries uses it to ogle Miss Brahms' tits, then Raja may lose access, and pay a fine, while Humphries gets arrested for computer mis-use and sexual thought-crime.