James Roland Books

How Circuits Work
How Circuits Work

By James Roland

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How Transistors Work
How Transistors Work

By James Roland

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Black holes
Black holes

By James Roland

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Black holes are one of the greatest mysteries of outer space. No visible light can escape the strong gravity of a black hole. This makes black holes invisible and very difficult to study. But scien...

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Growing up in Russia
Growing up in Russia

By James Roland

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Young people in Russia live in a society with many strict rules about free speech. But through education, the arts, and athletics, many young Russians continue to find ways to express themselves an...

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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.

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