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Everything posted by Acme
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Very good! FWIW I have been growing my own fruits & veggies for about a dozen years. Just got back in from cutting out old raspberry canes and tying up the new ones. YodaPs started a thread a while back that I contributed to and posted some pictures in. It's here: >> (Sub)Urban Farming I also propagate native plants both from seed and from cuttings, many of which are edible and/or medicinal. Yay botany!!
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Do you meant taking farmers job? No; I meant having the plants too close to one another. Easy big fella. Not everyone is suited to those jobs any more than everyone is suited to be farmers. I imagine some of that is being done, but it's no substitute for taking an old-fashioned walk in the field. Well, farmers have been growing seed crops for seed companies for a good long time on the basis of hybridization. At the heart of it it's been genetic manipulation all along. (Greed too of course, but I think that character trait is to found in any job.) I think the jury is still out on GMOs but inasmuch as hybridized monocultures have presented problems I don't doubt the same will hold true for the GMOs. Nothing ventured, nothing gained.
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Acknowledged gardening promotion. Yay! One thing to keep in mind is that overcrowding of plants can be detrimental. There is also the matter of the size of the plant, e.g. squashes have many seeds but a single plant can take up tens of square feet. An option for said squash seeds is to roast them and eat them. Yum! As to your lemon -or any seeds for that matter- you can find specifics by searching the phrase "propagation protocol for (name your plant)" Lemon Tree Propagation Methods
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How to insert a formula into the text of the topic?
Acme replied to IgOVa's topic in Suggestions, Comments and Support
If you have Windows, you can use Windows Character Map for many symbols; this includes Greek letters often used as variable names. For example: Σ Ω Δ θ π Φ Using special characters (Character Map): frequently asked questions -
Hello Sensei. Time is often of the essence. Read up on stratification Good growing!
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You're welcome again. Because of the satellites we have observing the Sun we would have the same notice of flares and CMEs for Mars as we have for Earth. (Because of its distance, Mars warnings would have greater lead time than Earth of course.) I don't get the 'our Sun might not be a flare star' since the Sun has flares all the time. I agree that the minimal atmosphere of Mars presents a considerable problem for colonists.
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De nada. Glad to help. It appears to be a consequence of areas of high magnetism in the crust; remnants of a once geodynamic magnetic field. Mars Express discovers aurorae on Mars
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CME Week: The Difference Between Flares and CMEs @NASA
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Were the First Artists Mostly Women? Three-quarters of handprints in ancient cave art were left by women, study finds.
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Can We Use Plants Transpiration to Obtain Drinkable Water?
Acme replied to Paramecium8's topic in Ecology and the Environment
By definition, transpiration is the movement of water through the plant and into the atmosphere, so I don't think 'assumption' is fitting here. In 20 minutes of searching I can find no other compounds mentioned as being transpired. Certainly plants produce VOCs, but as I understand it these are not very soluble in water. Even if other compounds exit stomata as a part of transpiration, unless they condense with the water on the collection surface they won't contaminate that water. As I just suggested this is not so for bacteria, viruses, dust, and mold spores to name a few contaminates floating around in the air. -
Can We Use Plants Transpiration to Obtain Drinkable Water?
Acme replied to Paramecium8's topic in Ecology and the Environment
Acknowledged. Whether one expends energy lifting the water or drawing a vacuum, energy must be expended. On the large scale transpiration filter idea I see another problem, which is the re-introduction of contaminants to the water as it collects on the container and runs down the material before it reaches the collection vessel. -
Can We Use Plants Transpiration to Obtain Drinkable Water?
Acme replied to Paramecium8's topic in Ecology and the Environment
The only mention of suction I saw was at the end where he shows a person trying to suck the water up through the wood filter as one uses a straw. He then comments it is impractical inasmuch as the effort required would make you sweat out more water than you could suck up. While using a mechanical vacuum is feasible, it is no more efficient than increasing pressure on the other side and that can be done by simply using a larger holding container to increase the head. In any case, the filtering with wood has nothing to do with the topic of this thread which is on about capturing the water transpired by plants. -
Can We Use Plants Transpiration to Obtain Drinkable Water?
Acme replied to Paramecium8's topic in Ecology and the Environment
Collecting water from plant transpiration in emergency situations is well known. Doing it over a long period is problematic as it would stress the plants. The material and labor required to do the collection on a large scales strikes me as problematic as well. Emergency Water Collection -
Is doubt of climate science the right place to start?
Acme replied to Ken Fabian's topic in Climate Science
True dat. [bodlenation mine] Climate -
Aha!! You're welcome of course. I don't now much about orchids, but a little searching turned up a couple of interesting links. The first, a book by Darwin which I plan to read a bit of after reading his book on worms last year. ON THE VARIOUS CONTRIVANCES BY WHICH BRITISH AND FOREIGN ORCHIDS ARE FERTILISED BY INSECTS, AND ON THE GOOD EFFECTS OF INTERCROSSING. BY CHARLES DARWIN, M.A., F.R.S., &c. The second perhaps more germane to your immediate query. Orchid Pollination
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It's not simply acceptable, it's unavoidable. When I know a post or posts are going to get merged with a previous post I preface the addition with "Addendum" so as to give notice. Not that others understand it as such of course.
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It might, but it's no simple matter inasmuch as some plants have flowers with both male and female parts (called monoecious) and some plants have only male flowers on a single plant and female flowers on a separate plant (called dioecious). Moreover, some plants self-pollinate and in several different ways. Other factors can affect how long a flower is in bloom too, such as temperature, available water, length of day & night, and other environmental elements. Given some of Externet's past threads on extracting essential oils from flowers I'd guess that is at the bottom of this topic so I'd suggest some reading up and experimenting with whatever specific plant(s) he is using.
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Yes, pollinated flowers wilt sooner than non-pollinated flowers. Since many plants are wind pollinated, keeping those plants from insects will have no effect.
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Except for wealth accumulated by ownership of stocks, real estate, companies and corporations, inheritance, interest, and any-and-all other investments unrelated to production.
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To be in the top 1% in the US, this source gives an income of $343,927 or more. According to this source, 16% of all people and 20% of all children in the US in 2012 lived below the poverty level of $14,580 per annum. I think a worldwide figure is misleading because it does not take into account the cost of living. All-in-all however, the world's population is healthier and deaths in war lower than at any other time in human history. 5 Reasons Why 2013 Was The Best Year In Human History The rich don't want to destroy the poor, they just want to keep them poor. Without the poor the rich would have no one to do their dirty work.
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Hijack - from Dividing a Sphere re. Ideal vs Real
Acme replied to Fred Champion's topic in Mathematics
Yay pedants! Moreover, and pedantically germane to this discussion, spheres in-and-of themselves don't have volume they have area. Balls have volume. It takes balls to be pedantic. -
Good being a relative term, one could attach some tubing to a certain style of squirt gun a 7th grader may well have and draw a vacuum. Might be a problem keeping the outer bottle from collapsing if it's plastic. Squirt gun
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'Thermos' is a brand name for a vacuum flask (aka Dewar flask). Insulating a bottle is technically just an insulated bottle, not a Thermos. If the assignment specifies 'Thermos', then you may want to get clarification.