De Beghinselen Der Weeghconst

Short description: Book by Simon Stevin

Frontpage of De Beghinselen der Weeghconst by Simon Stevin, 1586

De Beghinselen der Weeghconst (lit. "The Principles of the Art of Weighing") is a book about statics written by the Flemish physicist Simon Stevin in Dutch. It was published in 1586 in a single volume with De Weeghdaet (lit. "The Act of Weighing"), De Beghinselen des Waterwichts ("The Principles of Hydrostatics") and an Anhang (an appendix).[1] In 1605, there was another edition.

## Contents

* 1 Importance
* 2 Contents
* 2.1 Book I
* 2.2 Book II
* 3 See also
* 4 References
* 5 Further reading

## Importance

The importance of the book was summarized by the Encyclopædia Britannica:[2]

> In De Beghinselen der Weeghconst (1586; “Statics and Hydrostatics”) Stevin published the theorem of the triangle of forces. The knowledge of this triangle of forces, equivalent to the parallelogram diagram of forces, gave a new impetus to the study of statics, which had previously been founded on the theory of the lever. He also discovered that the downward pressure of a liquid is independent of the shape of its vessel and depends only on its height and base.

## Contents

The first part consists of two books, together account for 95 pages, here divided into 10 pieces.

### Book I

Start: panegyrics, Mission to Rudolf II, Uytspraeck Vande Weerdicheyt of Duytsche Tael, Cortbegryp Bepalinghen and Begheerten (definitions and assumptions)

Proposal 1 t / m 4: hefboomwet
Proposal 5 t / m 12: a balance with weights pilaer[check spelling]
Proposition 13 t / m 18: follow-up, with hefwicht, two supports
Proposition 19: balance on an inclined plane, with cloot Crans
Proposal 20 t / m 28: pilaer with scheefwichten, hanging, body

### Book II

Proposal 1 t / m 6: center of gravity boards – triangle, rectilinear flat
Proposal 7 t / m 13: trapezium, divide, cut fire
Proposition 14 t / m 24: center of gravity of bodies – pillar, pyramid, burner
The Weeghdaet
The Beghinselen des Waterwichts
Anhang
Byvough

## See also

* Simon Stevin

## References

1. ↑ Stevin, Simon (1586). "De beghinselen der weeghconst". Raphelengius, Franciscus. https://archive.org/details/ned-kbn-all-00011058-001/page/n34/mode/2up.
2. ↑ "Simon Stevin Flemish mathematician" (in en). https://www.britannica.com/biography/Simon-Stevin.

## Further reading

* Stevin, Simon (1955). Dijksterhuis, E.J. ed (in English, Dutch). [I_The_Principal_Works_of_Simon_Stevin,_Mechanics.pdf The principal works of Simon Stevin, Mechanics, edition Vol. I, volume]. C.V. Swets and Zeitlinger. https://dwc.knaw.nl/pub/bronnen/Simon_Stevin-[I]_The_Principal_Works_of_Simon_Stevin,_Mechanics.pdf.

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*[lit.]: literal translation