Peg uses a magic ukulele to find the line of symmetry on shapes. Peg uses a magic ukulele to find the line of symmetry on shapes that form steps. The steps should lead her to the Kingdom of Day, where ...

Forbes contributors publish independent expert analyses and insights. I write about the philosophy and ethics of science and technology. If you work up from first principles, much of what we ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. If you want to fully describe how the Universe works at a fundamental ...

The Hubble Ultra Deep Field. Almost 10,000 galaxies. Looking back to when the universe was less than a billion years old. Source: Credit: NASA, ESA, and S. Beckwith (STScI) and the HUDF Team/Public ...

Reflective symmetry is when a shape can be folded in half, with either side of the fold being a mirror image of the other. Rotational symmetry is when a shape can be rotated and it still looks the ...