Spacetime and Geometry: An Introduction to General Relativity provides a lucid and thoroughly modern introduction to general relativity for advanced undergraduates and graduate students. It introduces modern techniques and an accessible and lively writing style to what can often be a formal and intimidating subject. Readers are led from physics of flat spacetime (special relativity), through the intricacies of differential geometry and Einstein's equations, and on to exciting applications such as black holes, gravitational radiation, and cosmology. Subtle points are illuminated throughout the text by careful and entertaining exposition. A straightforward and lucid approach, balancing mathematical rigor and physical insight, are hallmarks of this important text.

These books are amazing. They have a portion for the parent to read and a portion for the child to read, making it a joint effort and giving the child a break. They are true beginner readers, so a child who has learned phonics can sound out the words. At the end of each boom there are three puzzles that help the child with comprehension of the story. The stories are fun and interesting.

This book provides a complete guide to IELTS Speaking test as well as technique to perform well in IELTS Speaking test
– Book’s features: The book provides:
an overview about IELTS speaking test: how your performance is assessed and what examiner looks for.
complete techniques from greeting examiner to long discussion
speaking samples in audio
practical exercises to practice
suitable for all levels

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