however carbon does not only absorb trace elements but organics as well as inorganics like, metals, ammonia, nitrates/nitrites salts and verious chemicals from the water.

the reason carbon won’t remove lots of ammonia. It’s lifespan as was mentioned is about 2 weeks before it becomes useless. Depending on how many other compounds are in the tank like salts, nitrates/nitrites and various chemicals used to adjust algae, medicines etc the carbon quickly becomes clogged and useless. The padded coating will still remove the bulk waste but the carbon has seen its day. It becomes saturated with these unseen components. While it does remove the bad stuff, it also removes the good stuff.

That is not to say everyone should stop using carbon filters, they serve their purpose and especially for beginners.
Going carbonless as G mentioned is something seasoned fishkeepers already know.
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The biggest problem with carbon is that it can’t differ between good and bad trace elements, and ends up removing good stuff too.

It’s an old school media that really only needs to be used for specific purposes, and most fish keepers I know don’t bother with it
References :

And to Jayaraman on the following Slokam:

"Kashaayam Katu Tiktoshnam
Swaadu Chaamalakam Himam
Param Tridosha hrut Vrishyam.
Jwaraghnam cha Rasaayanam
Dhanvanthari Nighantu."

What is quoted above from Dhanwanthari Nighantu says Kashayam (the concoction) is Kadu (Strongly / bitter ) Tiktha – ushnam (of Kopaka Rasam can be neutralized by Shamakarasam which are Sweet, Acidic and Salt) – the reason why when gooseberry is put in brine solution it looses its Thiktha Rasa or it is normally used as Murabba (a kind of jam preparation) with lot of jaggery(Sweet Rasam(taste)) in it. And further talks about its Swadu (Taste) and of Tridosha(three defects) hrut , Jwaraghnam and Rasayanam. I do not find the boiling aspect mentioned here. It only says it can be used for those attributes in various preparations. What is lost or not lost seems not to have been mentioned. Can you enlighten me Jayaraman.

The best way for you to eat Gooseberry without boiling it, and if you do not like it in the raw form, is to use boiled and cooled water (to my mind here the water is boiled and cooled to use only as a sterilized media), put salt in it, more than to taste. Put the gooseberry in it, and it should lie immersed in it completely and water level should be much above the gooseberry. Transfer the above to an airtight jar or plastic container. Keep it for at least 10 days. Add green chillies to taste if so wish. This process will remove its "kadu tiktha rasam" and will be well enjoyed by kids as well. Can be used as a side dish for lunch and dinner. Eat it as raw when the gooseberry change to yellow colour. Eat one or two gooseberries daily using a dry spoon. Can add red chilli etc. and convert it to pickle also.
References :

In addition to delta wings, there are straight wings, where the leading and trailing edge are both 90 deg to the fuselage, there are tapered wings, which start 90 deg to the fuselage and, typically, the trailing edge of the wing tapers forward to the direction of flight. And there are swept wings, (usually tapered,) where the leading edge of the wing sweeps towards the tail of the aircraft, allowing for a longer wing and less profile drag, meaning greater lift and increased economy for the speeds expected in cruise flight.

Another interesting thing to note is diehedral. Most aircraft have some diehedral built into the wings. Diehedral is the upward angle of the wings from the fuselage to the wing tip. This provides greater flight stability.

Low wing aircraft, (with the wings mounted at the bottom of the fuselage,) tend to have a greater diehedral than high wing aircraft because with low wings, the rest of the airframe is sitting on top of the center of lift while the high wing basically hangs from the center of lift.

Think of it this way, if you pound a nail into your wall, you can hang something from it easly. If you drive two nails and set something with a pointed bottom between the nails, it’ll stay where you put it until the nails bend.

Cathedral, used by some fighters and stunt aircraft, has the wings sloping downward from the fuselage. This increases agility and manueverability by allowing the airplane’s weight to use gravity to basically fall over the center of lift in a turn.

To go back to the nail in the wall analysis, try to balance a painting in a circular frame on a single nail.

If a google search doesn’t give you more information on NACS airfoils than you want, www. ntsb.gov, should be able to help you find what you’re interested in.

http://www.airliners.com will also have more pictures than you ever wanted to see of airplanes and can better illustrate the various wing designs and shapes. High wing aircraft are Cessna from the 140 model to the 208, with the 336 and 337 along the way, Piper Cubs, Tri-Pacers and the like. Low wing aircraft with varying diehedrals include the Mooney M-20, Piper PA-28, anything from Beechcraft, and most jets.

Good luck, hope I helped.
JT
References :
Been doing this a long time.