My coils are always sub ohm , but i. Habe been liking a more restrictive draw lately so my AFC is typically opened a third to half the way …
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If U=R.I , I=U/R, P=U.I=U²/R
With R =1ohm
If U≈4V, P≈16W ( say a typical single cell or parallel mech mod )
If U=[1,10]V, P=[1,100]W
Or in words, something like my Pico which can boost to 10V can max out at 85W on a 1ohm coil, not that I would as it would be 20+ amps on my battery.
Less resistance does not mean more power when the voltage is variable. Most sub ohm coils end up just being used at low voltages.
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I like your thinking. Looked at “para” - but it only “sort of” fits, kind of like “meta”, which has been used as meaning “higher” as well as “beyond” (as has “para”). The simple plural (“Ohms”) could be used - but for values between 1.0 and 2.0 Ohms, sticklers may not like the plural of Ohm being descriptively applied.
My dark horse candidate is to designate such coils as “sub-Mho” (originally suggested by Lord Kelvin; describes existence of >1.0 Ohm precisely). “I vape in slo-Mho, man”, and other linguistic possibilities. The sad story of its having been superceded by the Siemens. Perhaps it is high time for a little “Mho-grease” ?
My dark horse candidate (for nerds only) to describe greater than 1.0 Ohms would be “sub-Siemen”, which describes the situation precisely, by using the Unit of Conductance that is reciprocal to Unit of Resistance. For the alternating current (AC) case, as in PWM coil currents (though not significantly different for vaping coils), the reciprocal unit is “Admittance” - though I must “admit”, “sub-Seimen” sounds emasculating. … 
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Adding to the conumdrim.
If it’s a dual coil deck (1 ohm +(plus) 1 ohm) coils, you still end up being sub ohm @ 0.5ohm.
So saying Plus 1 Ohm can still be false in that case 
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(In a perfect world), “plus” should imply (only) series-connection of resistances (where they add in the total resistance). But you knew that. Parallel-connection of individual resistances (should) be stated (given the difference between series and parallel resistances). “Ignorance of the Harmonic Mean is no excuse”. … 
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Another calculator for anyone needing to understand better. 
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agreed
true, but it doesn’t have to fit perfectly because we will add another meaning to the word. I doubt we could change it entirely but I can settle.
Not bad, though I am not sure how well it rolls of the tongue.
Now, this youtube page is cool. I subscribed, thanks for showing it to me. Here is one for you. They do have daily words but the words are for middle schoolers or something, but the dictionary and thesaurus are pretty good. http://www.thefreedictionary.com/
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I am so jelly. I have been eyeballing that set up for quite sometime now. By the time I save up the cash, it will be six months old and that my friend is just too old. LOL Joking, even though that is old in the vape world, I would still like and want it.
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How about “Pro ohm” as in positive?
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Sub- is a prefix derived from Latin, meaning “under”, “below”, or “less than”. The analogous Greek prefix is “hypo-”.
Antonym: supra, hyper, sur, over, ultra
Supra - Word Definition
A prefix added to the start of a word. Indicates that “above” or “beyond” modifies the word. Created to expand meanings. Can be used with many words to form new words.Hyper - Word Definition
over, above, more than the normal, excessive hypercritical, hyperopia
Hahaha I kinda like hyperohm
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SubOhm-low build bully
HyperOhm- nancy pants
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Fasten your seat belts as we down-shift from “Hyper-Ohm” thru “Turbo-Ohm” into “Nerdbo-Ohm” mode. 
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IMO Super-OHM seem to be on the wrong end of the spectrum. kinda coined this phrase a while ago. For lack of a better term when not many were vaping that low. I thought it would be a good title for vaping below .1 ohms which was considered taboo before the onset of TC mods.
There was some discussion on the subject before…
.
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One characteristic where lower Resistance coil(s) make a difference - even when the coil(s) power in Watts is/are regulated, as in the cases discussed below - is the 10%-90% Rise Time (between the initial coil/wick interface temperature to the equilibrium temperature of the heated coil/wick interface) in units of Seconds.
Rise Time [10%-90%] ~ (2.2) * ((Coil Mass) * (Heat Capacity)) / ((Surface Area) * (Heat Transfer))
The units that the above quantities are expressed in cancel, leaving units of Coil Mass (multiplied by some numerical constant). In general, larger gauge coil wire results in lower values of Coil Resistance and correspondingly larger Coil Mass, requiring increasing amounts of Coil Power in order to maintain the same 10%-90% Coil/Wick Interface Temperature Rise Time.
(For a given equally-wetted and efficiently mechanically coupled wicking material), the numerical value of Heat Capacity should closely track Coil Mass, and the numerical value of the coefficient of Heat Transfer should closely track (inner) Coil Surface Area. Thus, even in cases where the value of the numerical constant is unknown, it can be (in general) said that:
Rise Time [10%-90%] changes with the squared ratio of Coil Mass divided by Surface Area, stated as:
Rise Time [10%-90%] changes with ( ( Coil Mass ) / ( Inner Coil Surface Area ) )^(2)
Calculating the values of all of the above independent variables (except for an unknown unless measured coefficient of Heat Transfer) for SS 316L wire, 3mm inner Coil Diameter, here are two different coil designs, both having (almost) identical inner Coil Surface Areas (differing by only ~0.5%):
1.6362 Ohm, 15 Turns of #28 gauge wire, 5cm Width; and
0.8181 Ohm, 11.31 Turns of #26 gauge wire, 4.7cm Width.
Calculating the ratios of the independent variables listed above for both coils, it is necessary to use ~1.606 times as much Power (Watts) in the case of the 0.8181 Ohm coil in order to maintain the same 10%-90% Rise Time as that of the 1.6362 Ohm coil system (from starting temperature to an equilibrium temperature of the wetted Coil/Wick interface).
If such an increased amount of Coil Power (Watts) is desired, great. But in situations where that increased Power may not be desired by the user, the 10%-90% Rise Time is increased as a consequence of using thicker (lower gauge) wire - resulting in increased battery-cell Current consumption as the price for “speed”.
Note that the above calculations relate only to a single-wire wrapped coil (without any shorted turns). Other coil “topologies” (such as twisted-pair, etc) would seem to be potentially more complicated to model. Coil Mass will always increase with the use of larger wire (decreasing wire gauge), and similar (thus comparable) designs using different gauges of (the same type of) wire should have similar trade-offs. The ability of a twisted-pair wire length to somewhat increase the (wick-contacting, inner) Coil Surface Area for a given Coil Mass (relative to single-wire) should result in a reduction in 10%-90% Rise Time that is equal to the square of the improved Coil Surface Area divided by Coil Mass ratio. That’s where a “mesh” type coil should shine.
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Summary:
The use of thicker wire gauges in order to achieve a lower total Coil(s) Resistance requires more Coil Power (Watts) in order to achieve the same 10%-90% Temperature Rise Time (of increases in the Temperature of the Coil/Wick Interface). As a result, the particular coil wire gauge that is used in creating a coil(s) determines a specific range of Coil Power (Watts) within which an “acceptably fast” 10%-90% Rise Time can be realized - with the required amount of Power (Watts) increasing with wire thickness. Maximizing (inner) Coil Surface Area while minimizing Coil Mass minimizes the 10%-90% Rise Time.
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It was worth posting those just for this gem I found…
Coilmaster J lol but not as we know him now…my how time changes things lol
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I left the rise time out because it is really more a matter of coil mass that anything else. You can have high mass/highish resistance coils ( 10 turns of .4mm/4mmID is close to an ohm)
If you want a funny one, the larger the wire, the less uniform the wire heats in its section ( it is cooled through juice vaporisation and airflow outside and the inside through conduction with inside).
I follow you saying that mesh/ribbon wire should be best in theory. Yet I find that really boring small diameter wire works best, not sure if it is a matter of ensuring sufficient heat inertia for the TC to work well or whether the bumpy cotton/round wire interface is a better fit.
I often empirically end up with 7 turns/.4-.5mmSs316/3-3.5mm ID coils which hapilly seat in my serpent SMM and cause no trouble. I might try a ribbon coil again next time.
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It works, it rolls off the tongue easily enough. I like it.
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I like Extra-ohm shortened to X-ohm
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I always think of a little blurb I read a long time ago. Too long ago to remember all of the details such as who was involved. Some well known employer, I’m thinking someone like Edison hired a fresh college grad and gave him the task of finding the volume of an irregular flask. After a long time the student using calculus came up with a result. The employer never interfered with the process. Afterwords the employer checked the result by filling the flask with water and measuring the amount of water in a measuring vile which took about two minutes with essentially the same results. My favorite electronics professor used to say “chicken shit is chicken shit, don’t pick the white stuff” meaning all the trailing digits the students were considering in calculations had no bearing on the function of the circuit. I see these as great analogies to vaping. I prefer trial and error. The multitude of physics variables interacting in a vapor chamber are daunting. Coupled with deviances, limits, etc. of materials used mathematical modeling becomes dubious. A particular atty with a particular build and a particular juice set at a particular power setting often provides a vape that I just love for subjective reasons. That’s just not a scenario that lends well to mathematical analysis. Don’t get me wrong, I like reading the technical approaches folks use as it defines their particular approach which I always find interesting. Some fun reading here.
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Thing is a lot of experimental science is that you find something working and try to understand why, so that you can make it better or just for the sake of it.
Empirical evidence for me goes: too heavy coil does not work, to light coils are odd as well.
I try to slap physics on to of that.
Serious engineering works a lot like this and I have done quite a lot of it.
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