After initial transportation failures, sealed terrariums were used by Robert Fortune to send stolen tea seedlings from China to India,[1] thus helping the British to break the nineteenth Century Chinese monopoly on tea production.
The seeds transported on their own would begin to germinate during the long voyage to India. The terrariums allowed the seeds to start sprouting and growing in a healthier environment than in the ships holds.
In 1848? It most certainly did. First modern patent is probably the system in Florence in the 1400's, but versions of the concept date back to 500BC. First US patent was 1790.
Not for cultured saplings. A plant growing in the forest is a resource, a carefully bred strain cultured over hundreds or thousands of years is nationalized IP.
> a carefully bred strain cultured over hundreds or thousands of years is nationalized IP
Is that just your opinion, or is there an internationally accepted legal framework around that? Could you perhaps post a link where I might learn more?
Just opinion... this kind of theft predates current law, though. Think of the silkworm smugglers [1] as well. Some crops an agri/zoo cultures were considered strategic resources and tightly controlled by the state. No idea what current international law says about stuff like this.
It was the prevailing opinion at the time, and many compnies, some state-owned, have and do own patents on plants and their derivitive compounds. While its possible laws and treaties existed then, I am unaware of, I understand it was a literal trade secret, that had been stolen. It would not be hard to interpret that as theft (literal; of seedlings, or monetary; by damages) regardless of precedent. I know contries are still very protective. https://www.desmoinesregister.com/story/news/crime-and-court...
People don't generally know much about plant breeding, so they have no appreciation for it. They think almost production-ready lineages just grow out there, god-given to the humankind. They don't realize there can be 10s or 100s of years R&D work behind a cultivar.
You can’t steal something that’s not legitimately your property. IP isn’t a justified legal concept, it’s a form of illegitimate regulation used by corporations to cement monopolies and threaten the competition with legistlation
Property is physically defined, and is justified as an extension of actions (I have a right to think for myself, therefore act on my own thoughts, therefore shouldn't be interfered with. I am taking the action of "storing this object I made" (for example), so to steal it is to infringe on my action is to infringe on my right to think for myself is to infringe on my rights).
"Intellectual property" is a bad analogy to physical property, isn't justified by such a chain of reasoning, and in fact the IP enforcers are infringing on the rights of the second inventor (or in our mess of a legal system, the person who failed to file papers with the government first).
I wonder if part of what makes it work is luck of the draw wrt. the microbial life that was present at the start. You need stuff that will break down the dead plants at a good enough rate but nothing that competes for resources or produces anything toxic to the plant. Or maybe that's a typical microbial makeup for sample of gardener's compost?
I tried this myself and can attest that it worked for at least one year. I basically grabbed some dirt + a ground cover type plant + some water and sealed it in a large glass bottle (1 gallon glass milk jugs work too). So I don’t think you have to be that lucky.
Yeah I don't know if you noticed the white patch on the lower part of the terrarium, that to me looks like a mix of the plants root system and mycorrhizal fungi, so there should have been microbes present within the soil when it was first planted.
demijohn are a bottle in a wicker wrapping. Once you get to large glass bottles like this breakage is real issue so it makes sense to wrap them so they can be moved with less chance of breakage. Note that if you do build one of these, be VERY careful moving them as they can break with a small slip and the large pieces of glass can easily cut tendons, leading to lots of long term issues.
I saw a shop selling these once: https://www.ecospheres.co.uk/ . They contain small marine shrimp, and "The only care the sphere requires is a source of indirect natural or artificial light" and they "have an average life expectancy of 2-3 years however it is not uncommon for them to survive for 7 to 10 years"[0].
If you read up on this, you'll find a lot of not-very-nice things said about ecospheres.
The shrimp inside are ʻōpaeʻula [0] which evolved to live in volcanic tide pools filled by rainwater. Sort of a feast or famine environment where the salinity and nutrients available are very volatile. Because of that, the shrimp have evolved to handle a wide range of temperatures, salinity, and scarcity of food.
The latter means they can go surprisingly long without sufficient food without realizing it. In other words, there's a good chance (according to some) that the shrimp in your ecosphere are actually slowly starving to death and aren't in anything approaching a stable ecosystem.
(Also, they aren't brine shrimp, which are an entirely different class of animal.)
Thanks for this. I wasn't too keen on them to be honest because they reminded me of little fleas jumping around. But it is sad to read "These shrimp are social creatures, but the Ecosphere starts with only four (often less, with one or more dead on arrival), and eventually only a single one is left to swim around alone, perhaps for years"[0]. I had assumed that they would reproduce within the ecosystem, but apparently not.
I have one of these sitting on the table right in front of me. We've had it for a couple months, and the brine shrimp are swimming around happily still. I figure it has a 50-50 chance of being broken by my kids before the shrimp die.
It's pretty normal to introduce springtails (small arthropods) to sealed terrariums. Their main purpose is to to eat mold, but they presumably also help with the carbon cycle.
Yeah, my brother did this. He made a self sustaining garden with some bugs in it. The bugs eventually stopped reproducing, possibly because of inbreeding? The plants lasted quite a while until my parents moved and couldn't take it with them.
Based on my layman knowledge of the relevant scientific fields here, it certainly seems plausible. He's not claiming anything that extraordinary. The stakes are also incredibly low, it's not like he's lying about his achievement to get some kind of grant.
People have been building terraria for centuries. You can buy all shapes and sizes in stores, some with fish. Though the fish ones probably don't last after the fish dies.
Gardening is one of the many areas of life where the best information and the bulk of information is offline.
Terminology pedantry since I recently got in "jarrariums" and have been reading a bunch...
Most terraria are not sealed, so while we've been making them forever, that doesn't say much about the viability of sealed ones. As far as I know, research into closed ecosystems didn't start until the 20th century.
If it has fish in it, it's not a terrarium. Terraria are land-based (hence the name). Think garden in a box. The main thing a terrarium gives you over simply potting some plants is that it can increase the local humidity. Also, you can have animals in it (usually invertebrates that eat detritus), which helps it be lower-maintainance.
If it's full of water, it's an aquarium (again hence the name). Most aquaria today don't have living plants and only have animals. That requires mechanical filtration and oxygenation to replicate the side of the ecosystem that plants normally occupy. A "planted tank" is an aquarium with live plants in it. When balanced well, they can be lower maintainance because the plants and animals provide things the other need.
If the box is half-submerged with both aquatic and land-based life, it's a "paludarium".
Gardening/farming is pretty much as far removed from the urban, heavily tech-influenced lifestyle most netizens live in as it can be.
But imho this is about to change, lots of people burning out on the rapid cycles and inherent unsustainability of living the "always online city lifestyle" and thus looking for ways to escape to something more natural in the form of gardening or even farming.
I mean, sealed terrariums are and have been a known thing for a long time. If you look more into it, 50 years doesn't seem all that implausible. To me, the most amazing part is keeping something around for that long.
You are correct, but there is very little incentive to lie. Maybe a helpful family member watered it a few times and never mentioned it. The concept does at least work for a few years as many sources can confirm, and the story is firmly in the plausible range imho. But in typical fashion, the data is scant and maybe contradictory.
The point on HN seems to be; the takeaway, arguing grammar/numbers/journalistic standard, and cooler-topics recently, and this has all 3. (Hyperbolic comments too, in case the /s is not autodetected by the content-bot mentality)
Why would anyone need to water it? Am I missing something? This is sealed like other terrariums, the water recycles, it has nowhere to escape (unless the plug is poorly sealed). Probably the first time it was opened in 1972 to be watered was because the water level wasn't high enough from the beginning.
Interesting thought, but in this case, simplistically put, the water, a limited resource, is the food for the cells. The population will grow until no more food is present and will reach balance in the eco-system. And the cells that die recycle back into the system
And then the sealed garden would have a lot of dry tissue that for some reason can't be seen in the photo, or traces of fungus decay. The other option is that somebody is cleaning it even if does not water it, and in the process is inadvertently watering it
If the garden is opened sometimes or the cork is loose, new water will enter by gass difussion until reaching an equilibrium. So a garden is either fully sealed, or watered.
Many plants are able to drink 'mist'. Some even only drink mist in their entire life.
In this species in particular, first the leaves die, then stems shrink until a fraction of their former diameter, then split in segments and collapse. Each segment emits roots and leaves later.
I'm thinking we each make our own little ecosystem, maybe a half an acre would be enough. Maybe make it double walled, just in case, and then say screw it to everyone else as climate change and various other big things occur on the outside.
You might be interested in Biosphere 2 [1], a 3 acre hermetically sealed dome stucture designed to house about 8 people with an ecosystem to provide them with everything they need to survive.
They didn't quite get oxygen and food production to the required level, but if you add another acre or so it should work. With renewed interest in moon and mars colonies somebody is bound to revive that line of research.
The first experiment was hampered by them not realising the cement needed CO2 to cure, to be honest I would have halted the experiment to find out what the issue was then restarted it. Although they might not have realised this at the time, but then they weren't really testing a proper closed system.
It would have been useful if they were able to test a closed system without the cement sucking up the CO2.
On the restarting, I completely agree. You'd need to restart the whole thing multiple times as your knowledge increased. Maybe somebody else is doing large scale closed system human habitats, but I haven't heard of any.
edit: A bit of googling led me to the Russian one and some books on the problem generally. It sounds like a great speciality but probably hard to get a gig in.
If I had a multi-decade old terrarium, I'd be darn tempted to think of sensors you could stick in there and see if there's some sort of cycle going on.
If you want similar projects that weren't influenced by Hippy culture to try and emulate a complex system that nobody really understands you should look into the stuff the Soviet Union did. For example https://en.wikipedia.org/wiki/BIOS-3 is much more interesting imho. Looking into the minimum number of species you need for sustainability and not being afraid of using technology to augment the system is the better way for reaching truly closed systems.
I've a vague fantasy about returning to the remote Scottish island where I was born, which is pretty windswept with almost no trees, and building a house and garden inside a large Solar Dome, growing trees and plants that otherwise wouldn't survive in such a hostile environment. Apparently it has been done to some extent[0]. Side note - they discovered in the Biosphere 2 that trees need some wind, because the stress helps form reaction wood to strengthen the tree[1].
What if the optics get damaged? What lasing medium are you using and what if it leaks?
For long-term defense systems, I'd try to go as low-tech as possible. Every bit of technology of the past 300 years is tied to a rather large manufacturing & supply chain. If your turret has μC in it, where will you get a new one if the marauders happen to score a lucky shot?
You can reshape the question into how small could you make a microcontroller fabricator which can produce all of the electronics within itself? One square mile to one square foot - it seems likely that the best possible is within that range. How well could it be optimized?
It would get too hot in most places, I think. Glass, especially if double walled, stops the heat getting out, but most of the heat from the sun will be able to get in (as infra-red). So you'd need supporting systems (i.e. air conditioning) outside.
AFAIK, at a certain depth below ground-level, the temperature is constant all-year-round. Something like that in two meters the ground is constantly around 14°C or something like that.
...so basically all you'd need to do is just dig a hole, put a bunch of metal pipes inside, seal it all up and run cooling water through and couple it to a closed-loop temperature control and you're done.
The idea is from an article from overclockers.com from the mid-2000s, about a dude who built his own water-cooling system and wanted a more efficient radiator. Not sure if I can find it again...
Anybody having Tradescantia fluminensis knows that is a very easy plant to grow. It stores water in its stems so is relatively dry resistant, but it grows unlimited unless you clip it. So either there is some kind of autoprune system in the bottle, or somebody is opening the seal and clipping it. In that case there is a external source of water in the air in form of vapor.
> Did anyone try introduce an animal in such a closed system, insects for instance. Does it self sustain?
Unlikely with this species. Most animals are unable to eat it. In any case this is closer to a monoculture than to a real ecosystem between one plant and some fungus (needed to remove the dry parts and stems if we assume that there is not human intervention to clean the surplus).
I have several terrariums and the plants self-limit when they hit the glass. I have never needed to prune or trim them. When they get too dense they start dying back from moisture issues, and it self-regulates into a pretty stable loop.
"Space in space" is cramped only because we put up too small living quarters. But an inflatable balloon only for growing things in it need not be especially rigid or robust. It wouldn't even have to be rigidly fixed to the living quarters, it could float a bit to the side connected only by flexible tubing.
That's not really true thanks to micrometeors. They'd have it ripped to shreds, and if it was connected to the main habitation units, would remove the air from there too.
I think I'd take inspiration from the sandstone fortifications I saw in Florida as a kid, that stopped cannonballs by basically eating them whole with a super-thick barrier of soft sandstone.
Cook up aerogel panels 1m thick, and layer them over your inflatable shell. The panels would still be translucent to sunlight, although it would scatter significantly. Micrometeorites would plow into the aerogel, making micro-tunnels in it until the kinetic energy dissipates. The micrometeorites would then remain embedded in the panels. Larger impacts could still plow through the panels completely, to breach the inflatable envelope, but those are more easily tracked and avoided. Panels that get too shredded can be replaced, and the micrometeorites harvested from them for study.
Cody's Lab recently put together a sealed terrarium meant to emulate the conditions of the Carboniferous period, and although it's going to be slow going I am still excited to see how it progresses.
There should be more funding and research on self contained, or nearly self contained ecosystems. The cost is modest on the larger scheme of things, but the potential benefits in the next half century could well be tremendous. Also, doing such research here on Earth may well save the lives of many pioneers in the coming decades.
There is nothing specific about green. Chlorophyll A and Chlorophyll B have different absorption spectrums. Depending on the specific combination of those two, the plants can appear in a different colours.
There are other pigments that cannot photosynthesise on their own, but can pass the energy to chlorophyll to react, as well. So while green usually means photosynthesis, absence of green does not mean absence thereof.
What other plants are there? Photosynthesis is performed in/by chlorophyll which is green, so it's hard to not be green.
There is a puprle earth hypothesis and Haloarchaea, which is based on witamin A related molecule for photosythesis, but those are not classified as plants.
The current theory for inception of plants is that one cell captured another chlorophyllic one and created symbiotic organism, which later evolved into multicelluar plants. So by definition plants should be green for phototrophy ("feeding on light"), until it would somehow evolved chlorophyllic cells, but ot seems they are older than plantae themselves.
Btw. similar theory exists for mitochondria and eukaryota, that's why we speak of my mitochondrial DNA.
A few plants are parasitic on other organisms, and have given up photosynthesis. An example is the Bird's-Nest Orchid (https://en.wikipedia.org/wiki/Neottia_nidus-avis) which is parasitic on a woodland fungus.
But these examples are unusual; the vast majority of plants get their energy the normal way, through photosynthesis using cholorophyll.
Is not so easy and stable as you could think. The trick there is in the species, that is a survivor, clonates itself from tiny fragments and is invasive.
So then I’m the only one who did this in elementary school, then?
Soil from the yard, a couple of plant clippings, water... and seal it. I find it kind of surprising how excited the comments here are when 7 year olds around the world have done this same experiment.
I think the point isn't "look new terrarium tech was just invented". I think it's "this terrarium lasted 47 year sealed".
Given that the terrarium guides I could find with a quick google suggest opening the vessel for gas exchange and fresh water every 4-8 weeks (depending on guide and plant type), the 2444 weeks reported here seems to be a long time.
Admittedly I’ve never done any research into it, but I’ve never heard anything of the sort. Close it up and see how long it lasts. I know that mine lasted for well over a year before my mom finally demanded we toss it because she was tired of it taking up space.
Honestly, it’s just a small Biosphere. I don’t really understand why you would expect one to work and the other not to.
Because as the time is extended, the possibility for things to get critically out of balance increases, possibly exponentially.
This is not merely sitting a coated steel bar on your shelf and expecting it to not rust. It is a highly dynamic cycle of multiple feedback loops and organizims, especially the soil microbiota. Any of it goes off, and the whole thing could collapse, and it could take a long time for that to go critical.
In this very example, he presumably determined tha tit needed water after several years, but added enough to balance to system so it lasted in a sealed condition for 47 more years.
> some like Bob Flowerdew (organic gardener) thinks that “It’s wonderful but not for me, thanks. I can’t see the point. I can’t smell it, I can’t eat it,”.
Not an argument at all, but a discussion of taste?
I think it’s quite clear. As a gardener, who values close contact and interaction with plants, he doesn’t see the point of plants that are permanently behind glass.
>more than a century has passed and David’s sealed bottle garden is still thriving and robust as can be. With thriving plant life, despite not watering it since 1972.
>David planted the terrarium back in 1960
I'm so annoyed by the above. Is this article written in 2060?
> "The Sealed Garden That Was Only Watered Once in 53 Years"
> "In 1960 David Latimer got curious and decided to plant a glass bottle with seed."
> "Posted on March 22, 2017 by Davin"
1960 + 53 = 2013
They have apparently had 4 years to find and catch the "century" error prior to posting, and another 2 years since.
I can't tell if there was any cheating, because the article does not specify how much compost was placed in the bottle initially, or its composition. So I can't estimate whether there's actually enough carbon or water in the bottle to support the visible amount of living plant mass. He should have measured the mass of the whole thing in 1960, and at least once per year thereafter, so he could show that the total mass remained the same.
> In fact, more than a century has passed and David’s sealed bottle garden is still thriving and robust as can be. With thriving plant life, despite not watering it since 1972.
right, which is what the parent comment was pointing out. The article says more than a century has passed, the parent comment says more than half a century with half emphasized to show that is what the article should obviously say.
Agree with the cork part. Looks pretty new and loose.
Tradescantia is not growth from seeds, so I assume also that the first seeds had died or survived for some years and Tradescantia was added later, maybe in 1972.
[1] https://www.amazon.co.uk/gp/product/B00H9J1AM2/