How Rockets Work: From Launch to Orbit
Introduction You have seen the footage. A rocket sits perfectly still on the launch pad, and then in an instant, something happens that should feel impossible. Millions of kilograms of metal, fuel, and machinery begin to rise. Not quickly at first. Slowly, almost reluctantly, it lifts. Then faster. Then faster still. Then it disappears into the sky, and minutes later it is in orbit, traveling at nearly 28,000 kilometers per hour, circling the planet every 90 minutes. Here is what most people miss when they watch a rocket launch: the most impressive part is not the fire. It is not even the speed. It is that the rocket had to change almost everything about how it moves in just a few minutes. It had to go from sitting completely still to traveling horizontally faster than a rifle bullet. It had to punch through the atmosphere, shed mass along the way, and then become something entirely different: an object in permanent freefall around Earth. This is the story of how that works, from t...