Exploration Definition and 107 Threads

Hello everyone, I am a second-year Electrical Engineering student, and my ultimate goal and dream is to work in space exploration. During my studies, I’ve realized that I am much more drawn to theoretical fields involving physics and mathematics than to technical fields like circuits and...

Just another new member reading previously asked questions

This is me, "The phytech" a new addon to the forum. Hoping to explore and learn being amidst the lovely and wonderful experienced. Thank you for having me🌠 Cheers!

Thought this sounded exciting, if nothing else then as possible basis for a discussion. Toward the Stars: Technological, Ethical, and Sociopolitical Dimensions of Interstellar Exploration. Regards. EDIT: Corrected link.

Hi everyone, In the past when I was doing my undergrad in physics, I sometimes looked at this page for inspiration in research. However, I was unable to find a similar one for applied geophysics. Currently, my area of research is exploration non-seismic geophysics, where the focus is on near...

In the 19th century the British Navy tried to sail ships through the Northwest Passage. The main obstacle was that the wind would drive pack ice against the northern shore of Canada. No ship could withstand a large berg. The ships usually got stuck in the ice for years, leaving plenty of...

Back in the 19th century British explorers came across Eskimos who were so isolated that they'd forgotten that any other humans existed. Nevertheless they had a little bit of iron that they used to put an edge on their knives. They had no trade so where did they get it? Fortunately their...

Do the people on this forum support manned (staffed) space exploration? I would like to know? Or would we be better off with simply robots exploring space for us. What is your opinion?

I am currently designing an alternative to normal acoustic drum lugs and I need to find the forces that are felt by the tuning rods of a drum for the engineering background to my design. I have been able to use the 2D wave equation assuming uniform tension on the membrane and found values of the...

TL;DR Summary: I'm interested in constructing an artificial universe and discussing its properties and behaviors. I would like to construct an artificial universe somewhat akin the Conway's Game of Life and discuss its behavior and properties. Is that allowed? Is this the place to do that...

It looks to me like no more than a huge ego trip for rich people. How much of the money spent will contribute to our knowledge of Science or Space. One image from JWST probably has more worth than the whole of this fun project. They might just as well send their money to Yemen, Ukraine or Haiti...

Titan's geology (involving a lot of organic molecules) is briefly described and possible appproaches to its exploration are discussed, in this NY Times article.

I am not sure if theta will be 60 degrees or 30 degrees in this case and Io is given.

I feel that force is also function of time.

If one were trying to look for life outside of our planet, would it be more logical to start off on Mars or to go elsewhere?

Can an electron in a spherically symmetrical potential energy function have non-zero spin angular momentum?

Having just read Scientific America's article on the Cascade fault, I wonder if Seismology/Earthquake monitoring sensors could be used to detect fossil fuel reserves and eliminate the use of air-gun blasting that is wreaking havoc on ocean life. Can the oil companies not use naturally occurring...

Hello, Hola, hajimemashite physics family, Well do you know what It takes to start a space exploration company such as making cubesats , satellites or launching vehicles? :wideeyed:o_O:woot: Give your suggestions please :oldeyes::oldbiggrin::angel: Regards.

NASA decided to stop *WFIRST and concentrate on Mars project (send humans to Mars). What do you think about it? In my opinion, since a lot of ventures have begun space developments such as SpaceX and this proves that rockets make money, NASA should tackle WFIRST. Generally, we cannot earn...

Hello everyone, I was wondering what degree/s do the people that build all the robotic exploration vehicles have. I have a bachelor's in physics and a bachelor's in material engineering from a university outside the US. I have now moved to the US and I would like to continue my education, I was...

Hello. As many theories and hypotheses that there are about a secure, reliable and effective future space exploration and colonisation that there are, I would like to dedicate this thread to the discussion of this topic. Some of the suggestions are: Von Neumann probes are an effective strategy...

Homework Statement Ok so I remember learning KCL. Current is either entering or leaving the node. There's only two possible option. You can call entering the node positive or negative, you can call current exiting the node either positive or negative. As long as what you call entering the node...

Hello, I am currently studying Physics HL in the IB Diploma Program, I am getting ready to work on the exploration internal assessment. I was wondering if there are any good topics that I should consider, thanks <3

I want to ask for your thoughts about Mars exploration in the current time we live in. Why do you personally think we should or should not strive to put money, time, and effort to send an astronaut to mars? My thoughts about this topic are how we should put forth our current developments and...

Hello, friends! My textbook, Gettys's Physics, says that the Lorenz gauge choice uses the magnetic vector potential $$\mathbf{A}(\mathbf{x},t):=\frac{\mu_0}{4\pi}\int \frac{\mathbf{J}(\mathbf{y},t-c^{-1}\|\mathbf{x}-\mathbf{y}\|)}{\|\mathbf{x}-\mathbf{y}\|}d^3y $$and the electric potential...

Hi, I'm a retired computer programmer (of mostly business applications). I wondered if anyone could tell me if anyone has used programming to investigate the dimensionless physical/mathematical constants in a random way. By random way I mean: write a program to randomly generate an equation...

Hey everyone! I've been accepted into an astrophysics master's program for this fall and wanted to get a head start before classes begin. During undergrad I took several courses in astronomy/astrophysics and really enjoyed studying these topics. But the problem is that I don't know where to...

Following scenario: 1) Send a few rockets with large payloads to the moon, carrying various parts of a nuclear reactor to be assembled on the moon 2) Use the nuclear reactor to extract oxygen from various materials found on the moon 3) Use the power of the reactor to harvest resources for...

I mostly just imagine stuff. For some years I've had imaginings of what might be possible if we could fire a laser like that of the N.I.F. into a magnetic field like that of the L.H.C. Recently, Hawking has announced his initiative to explore space at near lightspeed with "micro-ships"...

What do you guys think of this in general? Personally, it seems like there's very little to no practicality for such an interesting mode of transportation, even for people that can do/afford a trip on that. Pretty cool though, even though I also think there would be many problems to deal with in...

Hi everyone. I have seen the design for an NPN Cascode many times, but I want to build a PNP Cascode. I have scoured the internet for a standard design, but to no avail. The image below is that of a NPN Cascode. I want to create a PNP cascode by flipping things around. I have placed a red line...

I was wondering about the amount of energy in Photons. Do they all have the same amount of energy? Or do they have a base amount which can increase depending on frequency or some other parameter? Also, I have read that photon photon collisions can yield positrons and electrons, both positrons...

OK, ever since I was young I was well aware of my inability to draw. I had a friend who really could draw, and he did it so effortlessly. When I tried to draw, I had to erase erase and erase! I am asking this because I am a math major, and I would like to know if drawing is a talent that...

If anyone here works in the space industry, would you be willing to tell me about the most important credentials and qualities someone needs to work in your field?

Hey guys, I'm not sure if this would really fit into any specific area of the site. But I guess I was just wondering your opinions on SpaceX, and private spacefaring corporations in general. I'm not even going to get into Virgin Galactic or Mars One. :P In terms of technological advancements and...

Here's something that has been bugging me for decades. Well I keep forgetting about it thankfully, but I've never really been able to answer it. Why is Pi actually the value that we have for it and not some other number? If the ratio of a circle's circumference to its diameter was any...

Hello, I'm currently in my second semester of a Masters in Physics program. I hadn't given much thought to careers before I started, but now that I've been looking into them, I think I 'd most enjoy Exploration Geophysics. Is it likely that I'll find a job in it with a Masters in Physics...

Homework Statement a heat engine draws 200J of heat from the hot reservoir at 400K produces 110J of useful work and dumps 90J into the cold reservoir at 200K could this engine be built why or why not? Homework Equations PV=NkbT The Attempt at a Solution Not Sure on how I would set...

* I know this is a very long post but it would mean the world to me if you could read it. I would really appreciate it. Wll hi guys, so I'm in the final year of my IB diploma programme and in maths we have a component known as internal assessment in which you're supposed to write a so called...

I've heard tell that a mission to the Galilean satellites is difficult for many reasons, but radiation is one of them. Is it safe to say that above all, the worst radiation is when you are landing and have landed on the surface of the Galilean satellites, because you are in Jupiter's Van Allen...

Hi, so I have a homework problem and I don't know how to approach. I am given a circuit, with an AC source, a resistor ( 2 Ω) and a unknown circuit element (that could be an inductor or a capacitor). I am also given a graph with the Voltage amplitud across the AC source (Which happens to be...

The Paradox of Life A bit beyond perception's reach I sometimes believe I see that Life is two locked boxes each containing the other's key.

Hi, I am currently a beginning engineering student. I'm thinking mechanical engineering, but nothing is really set in stone. I am trying to spend a lot of this summer exploring different aspects of engineering and actually go out and go through the entire engineering process of designing...

I would like to know what the effects of a solar flare would be on equiptment used for lunar exploration, say a robot to be specific. What kind effects would this have on the electrical system? I also read a NASA article describing a large solar flare that created a long enduring proton...

I am solving three non-linear equations in three variables (H0D,H0S and H1S) using FindRoot. In addition to the three variables of interest, there are four parameters in these equations that I would like to be able to vary. My parameters and the range in which I want to vary them are as follows...

Greetings. I'm currently in the process of looking at universities worldwide (I recently won an open scholarship). It's an overwhelming task. I am fascinated with space exploration.Therefore I have naturally been attracted to Astronomy and Astrophysics, and even Aerospace Engineering. At...

Some may already be aware of this but I discovered it for the first time today- http://www.spaceref.com/news/viewsr.html?pid=36068 http://en.wikipedia.org/wiki/Nautilus-X Looks like they may be testing the centrifuge on the ISS some time in 2013.

I had mixed feelings when the first Indian unmanned lunar mission came under sharp criticism, the most common argument was that “should a country with such a poverty rate ,malnutrition and one the lowest per capita GDP really be spending on development of such technologies that are usually done...

Ok, so one problem with space is that bones lose mass, making them weak. Could one way around this (and osteoperosis on Earth) be to graft somekind of metal plating onto the bone structure to reinforce it in some way?

I read that nuclear power when used for propulsion of a vehicle can be very efficient for example nuclear powered submarines and aircraft carriers can run over twenty years without refueling and can travel enormously long distances with the fission of a few kilograms of uranium,but why is this...