Skip to main content



A Guest Post by Seth Fishman | Explaining E=mc^2 in a Picture Book

Today is POWER UP: Your Incredible, Spectacular, Supercharged Body's book birthday. To celebrate this special occasion, I am turning over my blog to Seth Fishman. Thank you, Seth! 

First, it was gravity.

When writing my initial picture book, A Hundred Billion Trillion Stars, my editor casually suggested, ‘Hey, why don’t you add a spread explaining gravity. That will be helpful.’ And I thought, sure—I love explaining “gravity” in 51 words as much as I love adding spreads into picture books!

And now, as if that wasn’t punishment enough, it was Albert Einstein’s Theory of Special Relativity. You know this one, I’m sure. E=mc^2.

In my new picture book, POWER UP: Your Incredible, Spectacular, Supercharged Body, I make some pretty bold claims. Most notably, that a child’s pinkie has the energy to light up a major American city for a full day. To make that (fact-checked) claim, I had to rely heavily on a) Einstein and b) the average mass of a kid’s pinkie, which I’m sure you’ve spe…

Latest Posts

Carl and the Meaning of Life by Deborah Freedman

A New Home / Un nuevo hogar by Tania de Regil

The Many Colors of Harpreet Singh by Supriya Kelkar and Alea Marley

Cover Reveal: Fry Bread by Kevin Noble Maillard and Juana Martinez-Neal

Book Trailer Premiere: Olive & Pekoe: In Four Short Walks by Jacky Davis and Giselle Potter

Reading Gives You Superpowers Week!

Unboxing The Iliad | A Guest Post by Gareth Hinds

Book Trailer Premiere: Seashells: More Than a Home by Melissa Stewart and Sarah S. Brannen

A Map Into the World by Kao Kalia Yang and Seo Kim

The Tornado by Jake Burt