David G. Blair Books

Ripples on a Cosmic Sea

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Most people live and work entirely oblivious to the fact that a myriad of ghostly ripples are passing through them all the time. Generated in the depths of space by colliding stars and black holes,...

The Detection of Gravitational Waves

By David G. Blair

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The Detection of Gravitational Waves

By David G. Blair

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Advanced Gravitational Wave Detectors

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Ripples on a cosmic sea

By David And McNamara Geoff Blair

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Teaching Einsteinian Physics in Schools

By David G. Blair, Magdalena Kersting

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Detection of Gravitational Waves

By Blair David G.

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Detection of Gravitational Waves

By David G. Blair

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Ripples on a cosmic sea

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Teaching Einsteinian Physics in Schools

By David G. Blair, Magdalena Kersting

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.