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Download e-book for kindle: A Rough Ride to the Future by James E. Lovelock

By James E. Lovelock

ISBN-10: 1468311603

ISBN-13: 9781468311600

Bestselling writer of The Revenge of Gaia James Lovelock—the nice medical visionary of our age—presents an intensive imaginative and prescient of humanity's future

Now in his ninety fifth yr, James Lovelock has been hailed as "the guy who conceived the 1st fully new method of existence on the earth in view that Charles Darwin" (Independent) and "the so much profound medical philosopher of our time" (Literary Review).

A tough experience to the long run introduces new Lovelock­ian principles. the 1st is that 300 years in the past, whilst Thomas Newcomen invented the steam engine, he was once un­knowingly starting what Lovelock calls "accelerated evolu­tion," a technique that's bringing approximately swap on our planet approximately 1000000 instances speedier than Darwinian evolution. the second one is that as a part of this technique, humanity has the means to develop into the clever a part of Gaia, the self-regulating earth process whose discovery Lovelock first an­nounced approximately fifty years ago.

A tough experience to the longer term is additionally an highbrow autobiography, during which Lovelock displays on his lifestyles as a lone scientist, and asks—eloquently—whether his profession trajec­tory is feasible in an age of elevated bureaucratization.

We at the moment are altering the ambience back, and Lovelock argues that there's little that may be performed approximately this. yet rather than feeling accountable, we must always realize what's occurring, arrange for switch, and confirm that we live to tell the tale as a species in an effort to give a contribution to—perhaps even guide—the subsequent evolution of Gaia. the line should be tough, but when we're shrewdpermanent adequate, lifestyles will proceed on the earth in a few shape some distance into the long run.

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The efficiency factor was estimated from measurements of the area fraction occupied by solid on an SEM projected image of a fracture surface. Densification rate was computed analytically from a semi-logarithmic curve which describes the change in volume fraction with time and reasonable precision. It is evident that the average vacancy annihilation rate varies significantly with time. This quantity may alternatively be expressed as the rate of annihilation of a monolayer of sites, or the time required to annihilate a monolayer.

Bowen, J. Am. Ceram. , 65: C-199 (1982). 11. M. Yan, personal communication, 1982. 12. D. L. Johnson, J. Am. Ceram. , 53: 574 (1970). 13. J. E. Burke and J. H. Roso10wski, in "Treatise on Solid State Chemistry", VoL 4, Ed. B. Hannay, Plenum Press, NY (1976). 14. M. Astier, G. Brula, F. LeComte, J. P. Reymond and P. Vergnon, in "Sintering - New Developments", Ed. M. Ristic, Elsevier Scient. Pub. , NY (1979), pp. 150-159. 15. G. R. Miller and O. W. Johnson, in "Processing of Crystalline Ceramics", Mat.

1'hi"t. 3 X/A Comparison between approximations and exact values for radius of curvature of the neck P, neck area, neck volume and d(Vol)/dX. 38 Vol K-S. HWANG AND R. M. GERMAN = 26ZiTfY~(Z)dZ + }TfAT3 ~ }Tf(Zi-A+AT)(3Y~(Zi) + (Zi-A+AT)2) ~TfA 3 3 (3) Zi A (4) AT+p p Yn(Zi) Ys(Zi) (5) where p, Zi, AT, Ys, Yn are defined in Figure 5. Since there are only three unknowns (p,AT,Zi) in this equation system, they can be solved numerically by a computer package based on the Newton-Raphson method. In the other case where interparticle distance changes, the apX2 3 Tf2X3 3 proximations involved are p = 4A' A = ~, and V is the same as in the previous case.

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