These are the best model rockets ahead of Amazon Prime Day, featuring NASA and Blue Origin, as well as STEM rockets, all ...

Using a combination of 3D-printed and machined metal parts, Barnard also developed a way to control the amount of thrust produced by solid-fuel rocket engines, which don’t have an off switch ...

A new rotating detonation engine could revolutionize rocket launches—if it can be made stable enough. Here's how it would work.

From the GeekDad mailbag, we’ve received the following request: My son and I have decided to build and fly our own model rocket. However, I am hopelessly mechanically and electronically dopey. I ...

It’s a fun 3-1/2 days of rocket theory and “arts and crafts” as you design, construct, and test-fire a solid rocket considerably larger than a model rocket engine. Report comment Reply ...

There is a reason building a rocket engine is harder than most things you want to build. If you are building, say, a car, your goal is to not have it explode. If you are building a bomb, you want t… ...

From Lawnmower to Rocket Engines, Here’s What Else Harley-Davidson Used to Make. Published: 17 Oct 2019, 08:01 UTC • By: Daniel Patrascu. 6 photos. Photo: Harley-Davidson.

Simple, fuel-efficient rocket engine could enable cheaper, lighter spacecraft Date: February 18, 2020 Source: University of Washington Summary: Researchers have developed a mathematical model that ...

You might call it a base model. If one were so inclined, ... Make A Hybrid Rocket Engine With Pasta, Hydrogen Peroxide, And Yeast. Posted: March 27, 2025 | Last updated: March 27, 2025.

Also, I should probably check and make sure this model agrees with the classical rocket equation for a large number of fuel shots. Here is a plot of velocity vs. time for a five shot, 50 shot, and ...

Model rocket enthusiasts are learning how to do vertical landings. Two hobbyists show how they can pull off SpaceX’s trick at a smaller scale with custom hardware and a few years of effort.