his book is about Singapore’s development into a city in which water and vegetation, along with associated environmental, technical, social and political aspects have been harnessed and cultivated into a livable sustainable way of life. It is also a story about a unique and thoroughgoing approach to large-scale and potentially transferable water sustainability, within largely urbanized circum…
The history of early human advance is the history of harvesting prosperity from agricultural innovation. In India, the later Vedic texts (c. 3000–2500 BCE) make frequent references to agricultural technology and practices.Jia Sixie, drawing on over one thousand years of Chinese study in his Qimin Yaoshu, or Essential Techniques for the Common People (535 CE), asserts throughout his work the c…
This book has been created to help you make decisions about practical conservation management by providing an assessment, from the available scientific evidence, of what works and what does not work in conservation. It also tells you if no evidence has been found about whether or not a conservation intervention is effective. This is the 2020 edition of What Works in Conservation, which was firs…
This chapter introduces industrial electronics. It covers some of the key developments and includes definitions for a few of the major terms, It also discusses the skills and knowledge the industrial technician must have to work efficiently. Finally, it introduces safety, which is of paramount importance for those preparing to work in the industrial environment.
This book describes how to design, specify, and apply power semiconductor converters. The reader learns to analyze converter characteristics in order to understand how these converters interact with the electric utility grid and with the load in various applications
People used to download music for free; then Steve Jobs convinced them to pay for it. How? By charging 99 cents. Prada and other luxury stores stock a few obscenely expensive items - just to make the rest of their inventory seem like a bargain. Why do text messages cost money, while emails are free? Why do jars of peanut butter keep getting smaller in order to keep the price the 'same'? The ans…
With the growing population in the Southern States, the increase of mulattoes has been very great. Society does not frown upon the man who sits with his half-white child upon his knee whilst the mother stands, a slave, behind his chair. In nearly all the cities and towns of the Slave States, the real negro, or clear black, does not amount to more than one in four of the slave population. T…
I do not know where Ballymulligan is, and never knew anybody who did. Once I asked the Mulligan the question, when that chieftain assumed a look of dignity so ferocious, and spoke of "Saxon curiawsitee" in a tone of such evident displeasure, that, as after all it can matter very little to me whereabouts lies the Celtic principality in question, I have never pressed the inquiry any farther…
In response to Carnacki's usual card of invitation to have dinner and listen to a story, I arrived promptly at 427, Cheyne Walk, to find the three others who were always invited to these happy little times, there before me. Five minutes later, Carnacki, Arkright, Jessop, Taylor, and I were all engaged in the "pleasant occupation" of dining. "You've not been long away, this time," I remarke…