Louis Loeschnig Books

Simple Space Flight Experiments With Everyday Materials Simple Experiments with Everyday Materials

By Louis Loeschnig

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Simple earth science experiments with everyday materials

By Louis V. Loeschnig

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Presents information on such topics as seismology, botany, environmental sciences, gravity, and the atmosphere, with various experiments and activities.

Simple space and flight experiments with everyday materials

By Louis V. Loeschnig

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Presents a selection of experiments and activities designed to teach the principles of aviation and space science, including making a glider, constructing flight instruments, and designing and buil...

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.