It takes the average reader 3 hours and 8 minutes to read Varying Gravity by Helge Kragh
Assuming a reading speed of 250 words per minute. Learn more
The main focus of this book is on the interconnection of two unorthodox scientific ideas, the varying-gravity hypothesis and the expanding-earth hypothesis. As such, it provides a fascinating insight into a nearly forgotten chapter in both the history of cosmology and the history of the earth sciences. The hypothesis that the force of gravity decreases over cosmic time was first proposed by Paul Dirac in 1937. In this book the author examines in detail the historical development of Dirac’s hypothesis and its consequences for the structure and history of the earth, the most important of which...
Varying Gravity by Helge Kragh is 185 pages long, and a total of 47,175 words.
This makes it 62% the length of the average book. It also has 58% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 4 hours and 17 minutes to read Varying Gravity aloud.
Varying Gravity is suitable for students ages 10 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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