2017年9月1日金曜日

Exploring a Global History of Science

Exploring a Global History of Science

The history of science has been centred for too long on the West, say Simon Schaffer and Sujit Sivasundaram. It’s time to think global.

Credit: UNIVERSITY OF CAMBRIDGE
Credit: University of Cambridge
The year was 1789; the place Bengal. Isaac Newton’s masterpiece Principia Mathematica was being translated for only the third time in its already 100-year-old history; this time, into Arabic.
The author of this remarkable feat of scholarship was Tafazzul Husain Khan. According to a member of the ruling East India Company: “Khan… by translating the works of the immortal Newton, has conducted those imbued with Arabick literature to the fountain of all physical and astronomical knowledge.”
For professor Simon Schaffer, who has researched the story of Tafazzul’s achievements, the complex work of translation is deeply significant. Tafazzul worked with scholars in English, Persian, Arabic and Sanskrit language communities in his efforts to connect Newtonian theories with the Indo-Persian intellectual tradition. For Tafazzul was, as Schaffer describes, “a go-between”.
“The ‘go-betweens’ are the individuals who, across the centuries, have been the cogs that have kept science moving,” he explains. “They are the knowledge brokers and translators, networkers and messengers – the original ‘knowledge transfer facilitators’. Their role may have disappeared from mainstream histories of science, but their tradecraft has been indispensable to the globalisation of science.”
Schaffer and Sujit Sivasundaram are historians of science with an interest in understanding how the seeds of scientific knowledge have spread and grown. They believe that the global history of science is really the history of shifts and reinventions of a variety of ways of doing science across the world.
They, and others, have called for a retelling of science’s past, not only to be more “culturally symmetric” but also because the issue has enormous contemporary relevance.
“A standard tale is that modern science spread around the world from Western Europe, starting about 500 years ago based on the work of those such as Newton, Copernicus and Galileo, and then Darwin, Einstein, and so on,” explains Schaffer. “But this narrative about the globalisation of science doesn’t work at all. It ignores a remarkable process of knowledge exchange that happened between the East and West for centuries.”
“Successful science is seen to be universal in its applicability,” adds Sivasundaram. “Yet, accounts of scientific discovery, heroism and priority have been part and parcel of a political narrative of competitive ownership by empires, nations and civilisations. To tease this story apart, we focus on the exchanges and ‘silencings’ across political configurations that are central to the rise of science on the global stage.”
Over the past two years, with funding from the Arts and Humanities Research Council, he and Schaffer have undertaken a programme of debates to ask whether a trans-regional rather than a Eurocentric history of science could now be told.
To do so, they teamed up with researchers in India and Africa, including Professor Irfan Habib from Delhi’s National University of Educational Planning and Administration and Professor Dhruv Raina of Jawarhalal Nehru University, and in December 2014 held an international workshop at the Nehru Memorial Library in New Delhi. “And now our debate is also being carried forward by a new generation of early-career researchers who came to the workshop,” adds Sivasundaram.
One conundrum the researchers debated was how global narratives of science could have been missed by scholars for so long. It largely stems from the use of source materials says Schaffer: “It’s an archival problem: as far as the production and preservation of sources is concerned, those connected with Europe far outweigh those from other parts of the world.”
“If we are to de-centre from Europe, we need to use radically new kinds of sources – monuments, sailing charts, courtly narratives, and so on,” explains Sivasundaram. He gives an example of Sri Lankan palm-leaf manuscripts: “The Mahavamsa
is a Buddhist chronicle of the history of Sri Lanka spanning 25 centuries. Among the deeds of the last kings of Kandy, I noticed seemingly inconsequential references to temple gardens. This led me back to the colonial archive documenting the creation of a botanic garden in 1821, and I realised that the British had ‘recycled’ a Kandyan tradition of gardening, by building their colonial garden on the site of a temple garden.”
Moreover, says Sivasundaram, the mechanisms of knowledge assimilation are often overlooked. Europeans often accumulated knowledge in India by engaging with pandits, or learned men. “The Europeans did not have a monopoly over the combination of science and empire – the pioneering work of Chris Bayly shows how they fought to take over information networks and scientific patronage systems that were already in place. For Europeans to practice astronomy in India, for instance, it meant translating Sanskrit texts and engaging with pandits.”
“Very often, scientific achievement is used as a standard to measure a country’s progress because science and technology can intervene in problems of hunger, disease and development,” adds Sivasundaram. “If a biased history of science is told, then the past can become what Irfan Habib has called a ‘battlefield’, instead of a ‘springboard’ for future research or indeed for conversation across cultures.”
This is why, says Schaffer, it becomes so important to provide a better account of the worldly interaction between the kinds of knowledge communicated, the agents of communication – like Tafazzul Husain Khan – and the paths they travelled.
The art of listening in
Knowledge networks were as important to the building of British political intelligence in North India in the 18th and 19th centuries as they were to the diffusion of science.
No discussion of Indian history, or of the communication and the movement of knowledge, would be complete without reference to the work of the late professor Sir Christopher Bayly (1945–2015).
Bayly saw the role of Indian spies, runners and knowledgeable secretaries as crucial to the British in helping to keep information and gossip flowing in the 1780s and 1860s. His ground-breaking research uncovered the social and intellectual origins of these informants, and showed how networks of ‘go-betweens’ helped the British understand India’s politics, economic activities and culture.
“One overriding reason why the East India Company was able to conquer India… was that the British had learnt the art of listening in on the internal communications of Indian polity and society,” he explained in his seminal work Empire and Information(1996).
Ultimately, however, India’s complex systems of debate and communication challenged the political and intellectual dominance of the British; it was their misunderstanding of the subtleties of Indian politics and values, he argues, that contributed to the British failure to anticipate the 1857 mutiny-rebellion.
World-renowned for his enormous contributions to his subject, Bayly was the director of Cambridge’s Centre of South Asian Studies until his retirement in 2014, as well as president of St Catharine’s College, and the Vere Harmsworth Professor of Imperial and Naval History in the Faculty of History.
He completely transformed people’s understanding of India in the 18th and 19th centuries, explains professor Joya Chatterji, the Centre’s current director: “Chris has been one of the most influential figures in the field of modern Indian history. Every one of his monographs broke new ground, whether in political, social and economic, or latterly intellectual history.”
His work was increasingly drawn towards ‘world historical’ comparisons and connections; his The  Birth of the Modern World (2004) transformed the understanding of the history of modernity itself, drawing attention to its richly complex, overlapping global roots.
This article was originally published on the University of Cambridge website.https://thewire.in/172693/history-of-science-global/

とても興味深く読みました:
\documentclass[12pt]{article}
\usepackage{latexsym,amsmath,amssymb,amsfonts,amstext,amsthm}
\numberwithin{equation}{section}
\begin{document}
\title{\bf  Announcement 380:   What is the zero?\\
(2017.8.21)}
\author{{\it Institute of Reproducing Kernels}\\
Kawauchi-cho, 5-1648-16,\\
Kiryu 376-0041, Japan\\
 }
\date{\today}
\maketitle

\section{What is the zero?}

The zero $0$ as the complex number or real number is given clearly by the axions by the complex number field and real number field.

For this fundamental idea, we should consider the {\bf Yamada field}  containing the division by zero. The Yamada field and the division by zero calculus will arrange our mathematics, beautifully and completely; this will be our natural and complete mathematics.
\medskip

\section{ Double natures of the zero $z=0$}

The zero point $z=0$ represents the double natures; one is the origin at the starting point and another one is a representation of the point at infinity. One typical and simple example is given by $e^0 = 1,0$, two values. {\bf God loves  two}.

\section{Standard value}
\medskip

The zero is a center and stand point (or bases, a standard value) of the coordinates - here we will consider our situation on the complex or real 2 dimensional spaces. By stereographic
 projection mapping or the Yamada field, the point at infinity $1/0$ is represented by zero. The origin of the coordinates and the point at infinity correspond each other.

As the standard value, for the point $\omega_n = \exp \left(\frac{\pi}{n}i\right)$  on the unit circle $|z|=1$ on the complex $z$-plane is,  for $n = 0$:
\begin{equation}
\omega_0 = \exp \left(\frac{\pi}{0}i\right)=1, \quad  \frac{\pi}{0} =0.
\end{equation}
For the mean value
$$
M_n  = \frac{x_1  +  x_2  +... + x_n}{n},
$$
we have
$$
M_0 = 0 = \frac{0}{0}.
$$
\medskip

\section{ Fruitful world}
\medskip

For example, for very and very general partial differential equations, if the coefficients or terms are zero, then we have some simple differential equations and the extreme case is all the terms are zero; that is, we have trivial equations $0=0$; then its solution is zero. When we consider the converse, we see that the zero world is a  fruitful one and it means some vanishing world. Recall Yamane phenomena (\cite{kmsy}), the vanishing result is very simple zero, however, it is the result from some fruitful world. Sometimes, zero means void or nothing world, however, it will show {\bf some changes} as in the Yamane phenomena.

\section{From $0$ to $0$; $0$ means all and all are $0$}
\medskip

As we see from our life figure (\cite{osm}), a story starts from the zero and ends with the zero. This will mean that $0$ means all and all are $0$. The zero is a {\bf mother} or an {\bf origin} of all.
\medskip

\section{ Impossibility}
\medskip
As the solution of the simplest equation
\begin{equation}
ax =b
\end{equation}
we have $x=0$ for $a=0, b\ne 0$ as the standard value, or the Moore-Penrose generalized inverse. This will mean in a sense, the solution does not exist; to solve the equation (6.1) is impossible.
We saw for different parallel lines or different parallel planes, their common points are the origin. Certainly they have the common points of the point at infinity and the point at infinity is represented by zero. However, we can understand also that they have no solutions, no common points, because the point at infinity is an ideal point.

Of course. we can consider the equation (6.1)  even the case $a=b=0$ and then we have the solution $x=0$ as we stated.

We will consider the simple differential equation
\begin{equation}
m\frac{d^2x}{dt^2} =0,  m\frac{d^2y}{dt^2} =-mg
\end{equation}
with the initial conditions, at $t =0$
\begin{equation}
 \frac{dx}{dt} = v_0 \cos \alpha , \frac{d^2x}{dt^2} = \frac{d^2y}{dt^2}=0.
\end{equation}
Then,  the highest high $h$, arriving time $t$, the distance $d$ from the starting point at the origin to the point $y(2t) =0$ are given by
\begin{equation}
h = \frac{v_0 \sin^2 \alpha}{2g},  d= \frac{v_0\sin \alpha}{g}
\end{equation}
and
\begin{equation}
t= \frac{v_0 \sin \alpha}{g}.
\end{equation}
For the case $g=0$, we have $h=d =t=0$. We considered the case that they are the infinity; however, our mathematics means zero, which shows impossibility.

These phenomena were looked many cases on the universe; it seems that {\bf God does not like the infinity}.

\bibliographystyle{plain}
\begin{thebibliography}{10}

\bibitem{kmsy}
M. Kuroda, H. Michiwaki, S. Saitoh, and M. Yamane,
New meanings of the division by zero and interpretations on $100/0=0$ and on $0/0=0$,
Int. J. Appl. Math.  {\bf 27} (2014), no 2, pp. 191-198,  DOI: 10.12732/ijam.v27i2.9.

\bibitem{msy}
H. Michiwaki, S. Saitoh,  and  M.Yamada,
Reality of the division by zero $z/0=0$.  IJAPM  International J. of Applied Physics and Math. {\bf 6}(2015), 1--8. http://www.ijapm.org/show-63-504-1.html

\bibitem{ms}
T. Matsuura and S. Saitoh,
Matrices and division by zero $z/0=0$, Advances in Linear Algebra
\& Matrix Theory, 6 (2016), 51-58. http://dx.doi.org/10.4236/alamt.2016.62007 http://www.scirp.org/journal/alamt 

\bibitem{mos}
H.  Michiwaki, H. Okumura, and S. Saitoh,
Division by Zero $z/0 = 0$ in Euclidean Spaces.
 International Journal of Mathematics and Computation Vol. 28(2017); Issue  1, 2017), 1-16. 

\bibitem{osm}
H. Okumura, S. Saitoh and T. Matsuura, Relations of   $0$ and  $\infty$,
Journal of Technology and Social Science (JTSS), 1(2017),  70-77.

\bibitem{romig}
H. G. Romig, Discussions: Early History of Division by Zero,
American Mathematical Monthly, Vol. 31, No. 8. (Oct., 1924), pp. 387-389.

\bibitem{s}
S. Saitoh, Generalized inversions of Hadamard and tensor products for matrices,  Advances in Linear Algebra \& Matrix Theory.  {\bf 4}  (2014), no. 2,  87--95. http://www.scirp.org/journal/ALAMT/

\bibitem{s16}
S. Saitoh, A reproducing kernel theory with some general applications,
Qian,T./Rodino,L.(eds.): Mathematical Analysis, Probability and Applications - Plenary Lectures: Isaac 2015, Macau, China, Springer Proceedings in Mathematics and Statistics,  {\bf 177}(2016), 151-182 (Springer).

\bibitem{ttk}
S.-E. Takahasi, M. Tsukada and Y. Kobayashi,  Classification of continuous fractional binary operations on the real and complex fields,  Tokyo Journal of Mathematics,   {\bf 38}(2015), no. 2, 369-380.

\bibitem{ann179}
Announcement 179 (2014.8.30): Division by zero is clear as z/0=0 and it is fundamental in mathematics.

\bibitem{ann185}
Announcement 185 (2014.10.22): The importance of the division by zero $z/0=0$.

\bibitem{ann237}
Announcement 237 (2015.6.18):  A reality of the division by zero $z/0=0$ by  geometrical optics.

\bibitem{ann246}
Announcement 246 (2015.9.17): An interpretation of the division by zero $1/0=0$ by the gradients of lines.

\bibitem{ann247}
Announcement 247 (2015.9.22): The gradient of y-axis is zero and $\tan (\pi/2) =0$ by the division by zero $1/0=0$.

\bibitem{ann250}
Announcement 250 (2015.10.20): What are numbers? -  the Yamada field containing the division by zero $z/0=0$.

\bibitem{ann252}
Announcement 252 (2015.11.1): Circles and
curvature - an interpretation by Mr.
Hiroshi Michiwaki of the division by
zero $r/0 = 0$.

\bibitem{ann281}
Announcement 281 (2016.2.1): The importance of the division by zero $z/0=0$.

\bibitem{ann282}
Announcement 282 (2016.2.2): The Division by Zero $z/0=0$ on the Second Birthday.

\bibitem{ann293}
Announcement 293 (2016.3.27):  Parallel lines on the Euclidean plane from the viewpoint of division by zero 1/0=0.

\bibitem{ann300}
Announcement 300 (2016.05.22): New challenges on the division by zero z/0=0.

\bibitem{ann326}
 Announcement 326 (2016.10.17): The division by zero z/0=0 - its impact to human beings through education and research.

 \bibitem{ann352}
Announcement 352(2017.2.2):   On the third birthday of the division by zero z/0=0.

\bibitem{ann354}
Announcement 354(2017.2.8): What are $n = 2,1,0$ regular polygons inscribed in a disc? -- relations of $0$ and infinity.

\bibitem{362}
Announcement 362(2017.5.5):   Discovery of the division by zero as
$0/0=1/0=z/0=0$.


\end{thebibliography}

\end{document}

The division by zero is uniquely and reasonably determined as 1/0=0/0=z/0=0 in the natural extensions of fractions. We have to change our basic ideas for our space and world

Division by Zero z/0 = 0 in Euclidean Spaces
Hiroshi Michiwaki, Hiroshi Okumura and Saburou Saitoh
International Journal of Mathematics and Computation Vol. 28(2017); Issue  1, 2017), 1
-16. 
http://www.scirp.org/journal/alamt   http://dx.doi.org/10.4236/alamt.2016.62007
http://www.ijapm.org/show-63-504-1.html
http://www.diogenes.bg/ijam/contents/2014-27-2/9/9.pdf
http://okmr.yamatoblog.net/division%20by%20zero/announcement%20326-%20the%20divi
http://okmr.yamatoblog.net/

Relations of 0 and infinity
Hiroshi Okumura, Saburou Saitoh and Tsutomu Matsuura:
http://www.e-jikei.org/…/Camera%20ready%20manuscript_JTSS_A…
https://sites.google.com/site/sandrapinelas/icddea-2017

2017.8.21.06:37

1/0=0、0/0=0、z/0=0

http://ameblo.jp/syoshinoris/entry-12276045402.html

1/0=0、0/0=0、z/0=0

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