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Uncertain Principles

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"Uncertain Principles" features the miscellaneous ramblings of a physicist at a small liberal arts college. Physics, politics, pop culture, and occasional conversations with his dog.

You've read the blog, now try the book: How to Teach Physics to Your Dog will be published December 22nd by Scribner.

Chad Orzel "Prof. Orzel gives the impression of an everyday guy who just happens to have a vast but hidden knowledge of physics." (anonymous student evaluation comment)

Emmy, the Queen of Niskayuna Emmy is a German Shepherd mix, and the Queen of Niskayuna. She likes treats, walks, chasing bunnies, and quantum physics.

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Basic Concepts:

Tons of Rain

Category: Physics

How much rain is a ton?

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Basic Concepts: Polarization of Light

Category: Basic Concepts

What do we mean when we talk about polarized light?

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Basic Concepts: Fermi Questions

Category: Basic Concepts

How many shopping malls are there in the United States? How to guess the answer without using Google.

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Basic Concepts: Estimation and Dimensions

Category: Basic Concepts

Order of magnitude estimates and dimensional analysis are two crucial elements of the physicst's mental toolkit.

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Basic Concepts: Ohm's Law

Category: Basic Concepts

Scott Aaronson asked for an explanation of Ohm's Law in terms of the motion of electrons, which happens to be tomorrow's lecture topic...

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Basic Concepts: Measurement

Category: Basic Concepts

Measurement is the process by which we determine the properties of the world around us.

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Basic Concepts: Energy

Category: Basic Concepts

The energy content of an object is a measure of its ability to change its own motion, or the motion of another object.

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Basic Concepts: Fields

Category: Basic Concepts

An attempt to give a really basic explanation of the concept of fields in physics, and why they're sometimes particles.

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Basic Concepts: Force

Category: Basic Concepts

Pretty much everything I can think of to say about the concept of "force" in physics.

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