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could say what is bend theory and name sites that could explain the theory to me

2007-01-28 22:29:59 · 3 answers · asked by 1145 2 in Science & Mathematics Mathematics

3 answers

I think you are referring to what is known as "knot theory", a branch of topology of mathematics.

Take a look at

http://en.wikipedia.org/wiki/Knot_theory

2007-01-28 22:42:32 · answer #1 · answered by Jano 5 · 0 0

the way i imagine it, instead of a ball in a unmarried blanket, there are various many blankets tangential to the earth's floor. everybody continuously says to imagine a ball in a blanket, curving it. notwithstanding that's no longer that basic. there is not any up/down in area. the downward curve that would want to recommend that products fall into the bottom of the solar or earth are merely simplifications of a lot of an same correct area-warps that truly dress the item. does that make experience? merely photo the ball contained in the blanket, then take that and picture a collection of blankets, all with an same structure around the earth because the first blanket, and at each and every diverse aspect on the exterior.

2016-12-03 04:37:48 · answer #2 · answered by ? 4 · 0 0

Bend theory of river meanders. Part 1. Linear development

--------------------------------------------------------------------------------
Syunsuke Ikeda a1, Gary Parker a2 and Kenji Sawai a3
a1 Department of Foundation Engineering, Saitama University, Saitama, Japan
a2 St Anthony Falls Hydraulic Laboratory, University of Minnesota, Minneapolis, Minnesota, 55414, USA
a3 Disaster Prevention Research Institute, Kyoto University, Uji, Japan

Abstract

Instability of the alternate-bar type in straight channels has long been identified as the cause of fluvial meandering. The condition of inerodible sidewalls, however, does not allow a meandering channel to develop. Herein a stability analysis of a sinuous channel with erodible banks allows for delineation of a ‘bend’ instability that does not occur in straight channels, and differs from the alternate-bar instability.

In the case of alluvial meanders, the two mechanisms are shown to operate at similar characteristic wavelengths. This provides a rationale for the continuous evolution of alternate bars into true bends such that each bend contains one alternate bar.

The same bend instability applies to incised meanders. A mechanism for incised alternate bars which differs from that for the alluvial case appears to operate at different characteristic wavelengths than that of bend instability. Analysis of data suggests that meandering in supraglacial meltwater streams is primarily due to the alternate bar mechanism, whereas the meandering of rills incised in cohesive material and of caves is likely due to the bend mechanism.

The meander wavelength of incised reaches of meandering streams is often longer than that of adjacent alluvial reaches. An explanation is offered in terms of bend instability.


Related site

http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=375704

2007-01-28 22:41:40 · answer #3 · answered by rahul_rd2002 1 · 0 0

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