Rocket science Definition and 25 Threads

Hi ! I'm a French student in Terminale (12th grade equivalent) and I have to do an oral presentation of 5min (Grand Oral) for my baccalauréat linked with my professional project. As I want to become an engineer in astrophysics, I want to talk about water rocket and the theoretical possibility to...

Summary:: Looking for people who can guide me in what I want to pursue I am a 15 year old and I am an enthusiast. I have been fascinated by rocket science and I have been learning some advanced rocket science principles from the past year. I have a few Ideas for Launch Vehicles and would like...

Hello, I'm reading a textbook named "Introduction to Rocket Science and Engineering" by Travis S. Taylor. I'm now in a general cosepts about orbits. I have a question, what the book says in here? I can't understand the bold formatted sentence. What the author try to mean? If you can, can you...

I found this illustration of a turbopump. I need to know if my intuitive sense is correct here. So, the turbine is located at the bottom right. The gas coming from the gas generator is fed into the torus shaped pipe on the left of the two turbine blades. First there is the HP turbine, the...

Hello! I'm currently in 7th grade, and I want to become a Rocket Scientist. Is there any possible way that I could speed this process up before I take AP tests or CLEP tests or go to college? I know it will be hard, but I want to learn. I think it might have something to do with Linear Algebra...

Hello You have all been very helpfull with all my quistions about multi stage rockets and so, but I am only left with one quistion. I know a multi stage rocket is better, but can somebody show me a specific exambel where a single stage rocket is more advantageable, or link to a website where i...

Homework Statement I'm trying to calculate the absolute lowest safe altitude above a planet's surface to start firing the thrusters on a simulated lander in order tot just reach vCraft = 0 at the planet's surface. The force the craft's thrusters responsible for desceleration generate is...

just an odd question that passed through my mind when i was watching a SpaceX youtube vid have we (as in humans)ever gotten a rocket to land on the ground with the nose up and the thrusters down (the same position the rocket took of in)?

Homework Statement Rockets are propelled by the momentum of the exhaust gases expelled from the tail. Since these gases arise from the reaction of the fuels carried in the rocket, the mass of the rocket is not constant, but decreases as the fuel is expended. Show that for a Rocket starting...

Homework Statement Rockets are propelled by the momentum of the exhaust gases expelled from the tail. Since these gases arise from the reaction of the fuels carried in the rocket, the mass of the rocket is not constant, but decreases as the fuel is expended. Show that for a Rocket starting...

I've been looking after some good books dealing with structural engineering of rockets and spacecraft s in general. I know that Rocket Propulsion Elements is a good book on rocket science, but I'm looking not only for propulsion but more specifically for structural design (loads, stress...)...

No question this time, just wanted to share this. I searched the posts and only came up with an eleven year old thread, so I thought it might be time to post a new one. I particularly found the aspect of Methane fuel interesting...

Is there any equation in order to know how high my rocket will go, before launching it? I suppose that if there is any, it will not take into account air drag and others, and there is no need for that. I just one to know an approximate, I am making a summer project with some friends and we had...

Hello everyone. I want to be interest in rockets. How I begin? Which books are I have to read? I'm also interesting with aircraft. Especially unmanned aircrafts. I have a little bit aerodynamic infrastructure. I'm waiting your answers. Thank you.

For an agency can a physicist be employed as a rocket scientist or he has to get a degree in engineering? If not does he need to take some special courses to convert himself to a rocket scientist?

Suppose that one of the Apollo landings had developed a fuel leak in the lunar ascent module, such that even with a lightened load, the ascent module only had enough delta-v to reach about half of lunar orbital velocity. One possible rescue solution would be to lower the command module's orbit...

Homework Statement [/B] I was wondering if you'd be able to help me with this problem: Given a two-stage launch vehicle with an engine that produces an Isp =400 sec, a payload mass of 10.000 kg, stage 1 structure mass of 10.000 kg, stage 2 structure mass of 10.000 kg, determine the mass ratio...

I know calculus, multivariable calculus and classical mechanics. So, I'm thinking about doing a project about rockets, so I'm looking for sources to learn about Rocket Science. Do you know good sources, like courses, books... for a 15 years old?

Homework Statement given a graph of the thrust of an engine, we need to determine what mass to make our rocket so that it goes 15m into the air. Here is the graph: http://www.321rockets.com/content/image/26402/800/A8_thrustcurve.jpg I just need some confirmation on if I'm doing it right...

Homework Statement A 2.45×10^4-kg rocket blasts off vertically from the Earth's surface with a constant acceleration. During the motion considered in the problem, assume that remains constant. Inside the rocket, a 13.1-N instrument hangs from a wire that can support a maximum tension of...

I'm currently developing a game using a pre-existing physics library called Box2D and I've stumbled into some unexpected behavior that I can't pinpoint being actual physics or an artifact of the programming. My spaceship is traveling through a 2D vacuum facing straight along it's velocity...

Homework Statement a rocket propelled car has total mass m0 and empty mass (after all of the fuel is burned) of m1. the car's exhaust speed is u and it has a constant burn rate of a=-dm/dt. ignore friction of wheels on the road, assume road is horizontal, and ignore air res. the driver fires...

Hey.. I am not too sure where this thread would go. Please remove it if needed. What are the requirements needed to major in Rocket Science? What Universities offer that major? What are the foundations that are tough to the students meaning what they learn? Is it more of a challenge then pure...

Hi. This one has been bugging me for a while. We briefly covered this in lectures getting just the main points with no derivations and I would like to fully understand this. I have a couple of questions and any help would be greatly appreciated. Homework Statement The main jist is this: A...

[SOLVED] Rocket Science "Calculate the speed acquired by a rocket whose mass varies as it burns up fuel." Is there any way I could make up a semi-realistic problem relating to the above quote and solve it with logarithms?