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pro vyhledávání: '"Eric Ethan"'
Autor:
Eric Ethan
What gem comes from the Sleeping Beauty mine? What gem was featured on the mask of the Egyptian king Tutankhamen and in Native American jewelry? It's turquoise. Readers will learn amazing facts about one of the only gems to be mined in North America.
Autor:
Eric Ethan
They're the red birthstone for the month of July, they're used in lasers and were even used in ancient battles—they're rubies! It takes a lot of hard work to mine for rubies and even more hard work to turn them into sparkling gems. Readers will lea
Autor:
Eric Ethan
It's hard to believe that opals come from the same element that makes sand, but it's true. This book features that fact and many more about this beautiful gem. From the mines of southern Australia to pieces of very expensive jewelry, readers will see
Autor:
Eric Ethan
Emeralds are the most expensive gems in the world, but it takes a lot of time and effort for them to get that way. Readers will discover many interesting facts about this beautiful May birthstone that takes millions of years to form. Vibrant photogra
Autor:
Eric Ethan
There are blue sapphires, clear sapphires, “fancy sapphires,” and star sapphires. All of these valuable gems are featured in this book, with colorful photographs to show readers their beauty. Where do most sapphires come from? How much was the mo
Autor:
Eric Ethan
There are many different types of diamonds in the world. They come in a range of colors and can be cut into all kinds of shapes. This book shows readers that the way these different kinds of diamonds are created really isn't that different at all. In
Autor:
Allen, Eric Ethan
This thesis describes how to add first-class generic types ---including mixins ---to strongly-typed object-oriented languages with nominal subtyping such as Java and C#. A generic type system is "first-class" if generic types can appear in any contex
Externí odkaz:
http://hdl.handle.net/1911/18503
Autor:
Allen, Eric Ethan
One of the most significant limitations of the Java Programming Language is its lack of support for generic types. This thesis describes an efficient compiler and run-time type system for NextGen, a compatible extension of Java that supports generic
Externí odkaz:
http://hdl.handle.net/1911/17487