Yes, Usha Di, donga can still be found in places. But, i am not sure if it is coconut tree or a TAL. Banana plants are also used, a few tied side by side; and even heaps of water hyacinth!
Regards, surajit On Sun, Jan 27, 2013 at 8:37 PM, Ushadi Micromini <[email protected] > wrote: > Thanks Surajit > > Donga ..boat... just saw one in a canal off off the Rupanarayan river over > the weekend... no pic though... a dug out from a narkel gaachh perhaps.. > > and classes of levers,,, reminded me of 5th grade physics classes... way > back when!!! > > usha di > > > > On Sun, Jan 27, 2013 at 7:06 PM, surajit koley < > [email protected]> wrote: > >> Good evening Gurcharan Sir, Usha Di, Pankaj Ji >> >> As Usha Di said, it is a simple means of irrigation without any carbon >> footprint, specially employed in those older days when there was no pump, >> deep or shallow submersibles. >> >> But, there is another DONGA, >> DONGA-BOAT<http://www.flickr.com/photos/66904750@N04/6302382337/>, >> to carry a person or two in water logged area or lowland or marsh. >> >> DONGA works as a class-I >> lever<http://en.wikipedia.org/wiki/Lever#Classes_of_levers>, >> rather i would say, it is a combination of two levers. The one is the >> bamboo frame which works as a seesaw, one end is tied (with a piece of rope >> or another small piece of slim bamboo stick) to the far end of the >> elongated boat like structure made out of galvanized metal sheet (iron or >> tin or an alloy). The other end of the long bamboo culm is either attached >> with a heavy weight (wet sand bag, not seen in the photo) to act as an " >> effort <http://en.wikipedia.org/wiki/File:Lever_(PSF).png>", or a person >> (in this case we need two persons to operate this simple machine) to exert >> "effort" on this end. >> >> The second lever is the elongated boat like metal container where the >> ground itself acts as fulcrum. The close end of this "boat" is immersed >> into the water and then it is raised to make water flow down the channel >> shown in the fourth photo. To give firm support to this metal boat cross >> iron rods are soldered along its length (thereby, the ladder like >> appearance). >> >> Long live the DONGA of West Bengal !!! >> >> Regards, >> >> surajit >> >> >> >> On Sun, Jan 27, 2013 at 4:50 PM, Ushadi Micromini < >> [email protected]> wrote: >> >>> Pankaj >>> anytime I can give you some faltu information call on me >>> ha ha... >>> >>> wont help your dissertation or papers for Orchids >>> but will broaden the horizons !!!! >>> >>> :)) >>> >>> Usha di >>> >>> On Sun, Jan 27, 2013 at 4:46 PM, Pankaj Kumar <[email protected]>wrote: >>> >>>> Ok yes, it might be meant for collecting water then pulling up with >>>> the help of bamboos to move water on the field. >>>> Thanks for enlightenment :) >>>> Pankaj >>>> >>>> >>>> On Sun, Jan 27, 2013 at 7:13 PM, Ushadi Micromini >>>> <[email protected]> wrote: >>>> > I dont think its for crossing the canal or the puddle, >>>> > >>>> > its for irrigation, the other/fard end should also be in water, the >>>> bamboo >>>> > end on the top gets pulled down by humans or animals that walk away >>>> from >>>> > that pole, and the metallic ???ladder?/ pulls water up and dumps it >>>> in the >>>> > ditch near the veggies growing in the filed.... >>>> > >>>> > Its not a foot bridge, I dont think >>>> > unless Surajit says otherwise.. >>>> > >>>> > >>>> > So tell us what is it? Surajit.. >>>> > Usha di >>>> > >>>> > On Sun, Jan 27, 2013 at 4:35 PM, Dr Pankaj Kumar < >>>> [email protected]> >>>> > wrote: >>>> >> >>>> >> Thats cute. I imagine thats a metallic thing, but why it is open on >>>> the >>>> >> other end. >>>> >> I had similar experience and to add to it, I can't swim. >>>> >> One of the most risky but funniest experience was when me and Dr. >>>> Jana >>>> >> Sckornikova crossed a flooded river on foot with our bags raised >>>> high above >>>> >> our head as we had our photographic equipment. Obviously we were >>>> totally >>>> >> drenched. But it was memorable. She only said, "YOU ORCHID GUY MADE >>>> THIS >>>> >> GINGER GIRL WET".....On that day we found some interesting orchids >>>> and >>>> >> ofcourse 3 Curcumas for Jana. >>>> >> She is one of the toughest taxonomist I have ever known. We even >>>> slept on >>>> >> railway platform in Bilaspur during one of our summer trips to >>>> Achanakumar >>>> >> Tiger reserve. We found the true Curcuma angustifolia, and >>>> unfortunately, >>>> >> only one orchid during that trip in Chattishgarh !!! >>>> >> >>>> >> >>>> >> >>>> >> >>>> >> On Sunday, 27 January 2013 02:12:29 UTC+8, surajitkoley wrote: >>>> >>> >>>> >>> Sir, >>>> >>> >>>> >>> After a long time i see this and i cannot help but share it with >>>> you. >>>> >>> >>>> >>> Thank you, >>>> >>> >>>> >>> Regards, >>>> >>> >>>> >>> surajit >>>> >>> >>>> >> -- >>>> >> >>>> >> >>>> >> >>>> > >>>> > >>>> > >>>> > >>>> > -- >>>> > Usha di >>>> > =========== >>>> >>>> >>>> >>>> -- >>>> ********************************************************************** >>>> "Taxonomists getting Extinct and Species Data Deficient !!" >>>> >>>> Pankaj Kumar, Ph.D. >>>> Conservation Officer >>>> >>>> Office: >>>> Orchid Conservation Section >>>> Flora Conservation Department >>>> Kadoorie Farm and Botanic Garden (KFBG) Corporation >>>> Lam Kam Road, Tai Po, New Territories, Hong Kong. >>>> >>>> Residence: >>>> 151, 1st Floor, Tai Om Tsuen >>>> Tai Po, New Territories, Hong Kong. >>>> >>>> email: [email protected]; [email protected]; >>>> [email protected] >>>> Phone: +852 2483 7128 (office - 8:30am to 5:00pm); +852 9436 6251 >>>> (mobile). Fax: +852 2483 7194 >>>> >>> >>> >>> >>> -- >>> Usha di >>> =========== >>> >>> -- >>> >>> >>> >>> >> >> -- >> >> >> >> > > > > -- > Usha di > =========== > --
