Chapter 49

“A basket.”

“Yes. Or, less specifically, a three-dimensional object.” Dana scooted it around the table until the light wasn’t directly above it and got a clean sheet of paper from the pad she had been using. She slid it under the bowl and got out a pen. “When we cast light on the bowl, we get a shadow, like this.”

Aurora frowned, not entirely sure where this was going. Dana traced the shadow with her pen and then filled it in before slipping the paper free.

“Okay, so if I asked you what this was based on the shadow, can you tell that it’s a bowl of fruit?” asked Dana.

“No,” said Aurora. “I can tell it’s curved, but that’s about it.”

“Good. We’re on the same page.” Dana pointed to the light. “When you shine a light on a three-dimensional object, you get a shadow in only two dimensions. So if we did the same with a four dimensional object, what should we see?”

Aurora scrunched up her brow. “Um… if the pattern holds, then we would see a three-dimensi