It takes the average reader 1 hour and 45 minutes to read Handbook of Analytical Design for Wear by C. W. MacGregor
Assuming a reading speed of 250 words per minute. Learn more
March 10, 1964 The problem of friction and wear between solid bodies is about as old as the human race. The early Egyptians and Romans had discovered the utility of lubricants in reducing friction and wear during a period many years B. C. From the fall of the Roman Empire until the Renaissance, I ittle new information appeared. A major break-through occurred in establ ishing the laws of friction (friction independent of area and proportional to load) through the work of Leonardo da Vinci (1452 - 1519), Amontons (1699) and Coulomb (1785). While most of the studies until this time were based largely on a mechanistic approach, a new trend was initiated in the 1930's by F. P. Bowden and D. Tabor wherein the physics and chemistry of the problem were treated as well. Since then, a large I iterature has been buil t up deal ing with such problems as metal transfer, molecular theories to explain wear, local welding between contacting surfaces, interlocking theories, wear-rate studies, the development of various test methods, effects of surface films, fretting phenomena, effects of temperature and environmental conditions, abrasion, surface energy relations, etc. The I ist of contributors in this field is indeed too long to cite here in any detail. Among those that might be mentioned, however, are R. Holm, G. A. Tomlinson, H. Ernst, M. E. Merchant, 10M. Feng, J. K. Lancaster, W. Hirst, F. T. Burwell, D. W. Baker, F. D. Brailey, E. R.
Handbook of Analytical Design for Wear by C. W. MacGregor is 104 pages long, and a total of 26,416 words.
This makes it 35% the length of the average book. It also has 32% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 2 hours and 24 minutes to read Handbook of Analytical Design for Wear aloud.
Handbook of Analytical Design for Wear 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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