Philip Hogan

How Is the PPO2 of a Breathing Gas Calculated?

What Causes Some Objects to Fall Slower Than Others?

What Are the Six Degrees of Freedom?

What Happens When You Shoot a Gun in the Air?

How Many Lateral G’s Can a Human Survive?

Can Hydrogen Be a Solid? The Quest for Metallic Hydrogen

Why Is Gravity Different on Different Planets?

At Sea Level, How Far Is the Horizon?

How Does Light Travel Through Space and Matter?

Why Is the Sky Blue During the Day?

How Fast Does Gravity Travel? The Speed of Gravity Explained

Where Does Your Energy Go When You Die?

What Causes a Red Sun? The Science of Light and Particles

How Does a Flash Bang Work? The Science Explained

When Is Nightfall? The Science of When Night Begins

Are Black Holes Really Holes or Just Dense Objects?

What Happens to Your Atoms When You Die?

Can a 9mm Stop a Bear? The Ballistics Explained

How Does a Bottle Rocket Work? The Science Explained

How Does Anti-Gravity Work in Theory and Practice?