Rhyfeddodau'r Cread
By: Gan Gwilym Owen, M.A., D.Sc. Athro mewn Anianeg Coleg Prifysgol Cymru Aberystwyth
Publisher: Hughes a'i Fab
Published: 1933
Place of publication: Wrexham
Language: wel
Format: Hardcover
Number of pages: 104
First sentence: Yn ystod y pum mlynedd ar hugain diwethaf, y mae'n gwybodaeth wedi cynyddu'n ddirfawr mewn dau gyfeiriad cyferbyn.
Description: The book is a popular introduction to physical science. It includes a discussion of galaxies and the Universe, the nature of atoms, and the formation of the Sun, Earth and Moon. There is a discussion of atomic structure, electrons and protons, and radioactivity. The nature of sound is described. The implications of science for religion are discussed. It includes several monochrome photographs.
Notes: The author is Prof. Gwilym Owen (1880-1940) of Aberystwyth.
Table of contents: pagenum: 7
class: section
title: Rhagair; pagenum: 9
class: section
title: Cynnwys; label: I
pagenum: 13
class: chapter
title: Y Mawr a'r Bach yn y Greadigaeth. I. Y Mawr; title: Y Mawr a'r Bach yn y Greadigaeth. I. Y Bach
pagenum: 19
class: chapter
label: II; title: Datblygiad ym Myd y Ser. I. Geni'r Haul a'r Ddaear
pagenum: 27
class: chapter
label: III; title: Datblygiad ym Myd y Ser. I. Geni'r Lleuad
pagenum: 35
class: chapter
label: IV; label: V
pagenum: 40
class: chapter
title: Mater - Beth Ydyw? I. Yr Atom; title: Mater - Beth Ydyw? II. Yr Electron a'r Proton
pagenum: 46
class: chapter
label: VI; title: Mater - Beth Ydyw? III. Radium a'i Wersi
pagenum: 50
class: chapter
label: VII; title: Natur Swn
pagenum: 59
class: chapter
label: VIII; label: IX
pagenum: 63
class: chapter
title: Trosglwyddiad Swn; label: X
pagenum: 66
class: chapter
title: Natur Sain; label: XI
pagenum: 71
class: chapter
title: Y Raddfa Gerddorol; title: Cyd-Ysgogiad
pagenum: 77
class: chapter
label: XII; label: XIII
pagenum: 83
class: chapter
title: "Lliw" Sain; title: Gwyddoniaeth a Chrefydd
pagenum: 91
class: chapter
label: XIV