Idea Definition and 811 Threads

Hi all. This is my first post, so I hope this is the correct place to post. I have been studying maths at Kumon for the past years. I just want to see if I have covered the basic maths needed for studying physics (start with MIT 8.01 maybe?). When I browse through this forum, I have no idea...

I spend a lot of time on the internet. During that time I've noticed that some of my fellow internet dwellers seem to like to spend their time trying to spread a number of... shell we say ill advised ideas. I would be nice if the various pieces of misinformation that are spread on the...

I have a heavy apparatus I am working on which needs to be mounted onto a plate (or some other support structure). The plate material has to be high strength, light-weight, and display very weak magnetic properties. Any suggestions for a material? Thank you.

Would it be possible to make a working jet engine by simply having a structure like two metal cones stuck tip to tip (traffic cone shaped)? The idea is to get it going fast, inject fuel in the middle, have the fuel auto ignite due to compression heating in the front cone, and than use the back...

I am talking about electromagnetism.. Can we construct a system with no power consumption.. I ve an idea... 1 we can construct rail route surrounded by dome shaped copper (actually cu strips to avoid eddy current) 2 rail on which permanent magnet is fixed will allowed to move on this...

I have read a discussion about a centrifugal fan on a wheel system The fan pulled air to itself and push the air outward from center. Most flying machines that I aware of push air down, as Newton describes. Since air is move downward, but toward machine could a new drone work this way...

So this may get long winded.. All of existence, as being described by physics works on a principle of relativity - nothing is really there unless an observer is present to measure an event (Special relativity, general relativity, even relational quantum mechanics). Events are dependent on the...

So my friends and I want to start a youtube channel doing stuff with math and physics and such, but we can't come up with a clever name, any suggestions? Thanks!

Hello, I am a California Community College student and I just applied to UAF (University of Alaska at Fairbanks) as a Electrical Engineering major and intend on double majoring in Math or Physics. I will be a first year transfer and starting as a sophomore. I also have a 3.0, but for a UC...

Hello, I've been thinking lately about the strange orbit speeds of galaxies and I came up with a little loony idea. What if gravity has a minimum attraction? To put it a different way, the attraction of any mass continues with a constant force no matter the radius after a certain distance...

I was thinking there might be some clever but not well known ideas for nuclear technology being applied to an orbital telescope. Perhaps a different type of material would make an excellent sensor etc. Any ideas?

Here is an idea I had for a way to deduce the internal structure of an organic object using it's natural radioactivity. The set-up is an array of gamma ray detectors located circularly around the object. By detecting both the position and direction of the gamma rays (obviously impossible to get...

If you are not a scientist and do not have a lab yet you want to share a great idea with the world but you would like to be protected how do you do so?

My friend in the air force was complaining that the military Osprey was bulky, weak, and could be spotted from miles away. I have an idea that uses an electro-magnetic rotated turbine instead of the large and noisy propellers. it would include the encasement of the turbine to make the vehicle...

Hey guys, When you are shot with a gun you get hurt even if you're wearing kevlar. In some cases you even break ribs or puncture a lung. Are there no solid substances out there that hardens proportionally with the kinetic energy that is applied? If that was woven into the vest it wouldn't...

I am a high school senior going into university this fall. I have completed many general education credits and I am going in as a freshman with 68 credits already completed. Because of this, I am interested in instead of taking 2 1/2 or 3 years in university I would be willing to take 4 years...

Homework Statement The c.d.f. of a random variable X is given by the following formula F(x) = 1 - e-x2 x≥0 Find M(t). Moment generating function. The Attempt at a Solution I've found the pdf as f(x) = F'(x) = 2xe-x2 x≥0 To determine M(t) I need to do the following...

I had an idea about how to make an almost all metal solar still. Here is my idea: Take metal and shape it into a wide and shallow bowl. Put an insulator on both sides of the metal so that the heat stays inside. Take some pipe and put it above the bowl. Take coiled pipe and put it in a metal...

I've recently read some posts about the universe repeating itself, or even the possibility of some states of the universe repeating themselves and it troubles me. I can't cope with the idea that someday i may go to the street and find today equal to yesterday or to some other day. This would...

Hello everybody! Let me share one of my ideas with you! This is a modified helicopter. It has raft instead of wheels. Its screw axis can tilt. So may be this machine can both fly and travel on the water surface. Please comment.

Hi there! Im new to this forum so pardon me if this is the wrong place to post my question. Basically, I have an idea with regards to doing some modification to phone screens. However, there is no such technology (yet) for this and I have zero knowledge and background pertaining to...

Hi there! Im new to this forum so pardon me if this is the wrong place to post my question. Basically, I have an idea with regards to doing some modification to phone screens. However, there is no such technology (yet) for this and I have zero knowledge and background pertaining to...

Has there been a debate as to whether fundamental constants can be chosen freely for a theory or some constraints make it unlikely that to be the case. for example the dimentionful parameters don't have a specific value, only combinations give FSC, that means(to my mind) that there is unlikely...

If someone were to send a probe out to interstellar space, bring it to a full stop and start rotating, would it continue rotating eternally? Or would drag from errant plasma slow it?

Hello, I'm in Arizona and was looking to hook up some PV panels directly to the air conditioning unit pump. Is this a reasonable goal? I figured that I could disconnect the AC unit from grid power and then hook up the solar panels/inverter to the AC unit, but is it possible to have the...

I have been pondering this ridiculous Idea for a long time. It relates to something i read about restrictions on traveling at the speed of light or above the speed of light. In a nutshell it explained that an object approaching the speed of light would gain mass, and would eventually require...

The heliocentric model marked the beginning of modern astronomy. But what were the reasons which led Copernicus to think that the Earth orbited the sun. I've read that his model was based on observations made by some other astronomer. Can anyone describe how he got this idea?

I'm currently a freshman who is double majoring in Math and Mechanical Engineering. I took a class over the summer, and the instructor got me very interested in math again, which is why I added the second major. In high school, I was an average student (As in Bs) and As in Bs in all of my Math...

So, I came up with a research idea. I'm in my fourth year and next year I'm doing my master's. I have a research idea that involves a lot of biology and biochemistry. I've taken a few extra classes in biology, but I'm lacking in knowledge. My master's thesis will have nothing to do with this...

I made this to convert a time in hh:mm:ss form to seconds. Not working, for some reason. I tested "00:02:29" and got "2". Any idea why? Also, any ideas on how I can make this procedure more simple and elegant? function clock2secs(clockTime) { if (clockTime.length > 8) { return -1; }...

I'm having trouble understanding the idea of escape velocity. How can an object escape the gravity of a massive object like the Earth? No matter what the velocity the object is, doesn't Newton's law of gravity imply that eventually, the force of gravity will cause the object to decelerate, and...

The usual definition of an n-dimensional topological manifold M is a topological space which is 'locally Euclidean', by which we mean that: (1) every point in M is contained in an open set which is homeomorphic to ##\mathbb{R}^n##. (2) M is second countable. (3) M is an Hausdorff space...

I'm here to test an idea and if anyone wants to help make it better, they are welcome to add their own. I have a story planned that will be happening on a pretty savage world. The characters were sent there as prisoners and as their punishment they have to mine the exotic materials that came to...

why not launch space ships with a sort of magnetic rail system so that you don't have to launch fuel with you a ship coated in resin would survive the atmosphere and because of its elevated location on a mountain the atmosphere would already be much thinner the length of the rail is a slight...

Brand spanking new to the forum. Registered just to ask this question... We have a machine at work that has the following parameters: tempurature pressure time This machine machine processes a prodcut that has two properties: quantity stiffnes shade (Not really sure if the shade...

Hello, I am attempting to repeat the math found on page 4 of this paper using the Euler-maclaurin summation formula. How would I incorporate the conversion factor because I can not figure it out for the life in me! Thank you! http://www.hep.caltech.edu/~phys199/lectures/lect5_6_cas.pdf

I've been interested in a BSME for a while now and I have no problem putting the effort into earning it, the only problem is that I'm currently an active duty flight engineer in the military and I can't just go into a regular 4 year university program with other obligations. However, there are a...

No idea -- solve log_a(x) defined only for 0<a<1 and a>1 Homework Statement Describe how to solve log_a(x) defined only for 0<a<1 and a>1

I'm looking for one. Something that would be useful and fun to develop at the same time. What would you like for a physics related app?

I have no way to test an idea that I have been thinking about, but would like some one to test it. To keep it simple all you would need to do is take a piece of nickle and shock it with electricity. This would need to be done in a place that has a way to test if there is an Ionosphere. This...

A hypothesis only by James Leckner Looking at space as a form of energy itself or as another way that energy is converted from one form to another. You would look at space as not the result of a large explosion (per say) but more like the conversion of one form of energy to another or even...

University physics with lab general chemistry 2 with lab Design class linear Algebra Culculs 2. Does this look like an overload? At times it feels like it is and at times it feels like it can be done. the mechanics course and the general chemistry course both come with labs which is the...

Can anyone help me? I have no idea... I have no idea how to approach this; so figured it was worth a shot asking you guys! Cheers! Using the Principle of Superposition, find the general solution of the differential equation: dx/dt = (1/2)x+4 ; subject to the initial condition...

Homework Statement So basically I have a project where I have to basically make a vehicle that can tow 2 objects and across a 30ft fishing line. The line will be pulled tightly. After we've demonstrated our vehicle's ability to go 30ft, the line will be angled at a slight incline. Definitely...

If one constructed a platform at the absolute south pole, that is truly perpendicular to the Earth's axis and then constructed a shaft on such platform that is aligned parallel and on center with the Earth's south pole axis and then installed a bearing, with large weights on the outer...

Forgive me if this post is too long and too full of misconceptions. I'll try to be clear and concise. And sorry for cramming too many questions into it, but they all sort of go together. I'm wondering if someone can help me understand the idea of superposition. Does it only have to do with a...

Mars current atmosphere is 0.006 bar. It is theorized that the atmosphere was thicker in the past possibly thicker than Earths 1 bar atmosphere. There are many processes that could have done this such as having no magnetic field, lack of geological activity, a planetoid crashing into it and...

I'm an undergraduate studying math and will be applying to grad school in the future. The top graduate programs are MIT, Harvard, Stanford, Princeton, Berkeley and Chicago. However, I doubt I would be near the top of the class at these places (if I got admitted, that is). This could have a...

I am currently in the process of re-writing an episode for a Science Fiction television series. Currently the main character a 280 year old human scientist travels back in time to stop catastrophic events set in motion. I would like to stay away from the actual time travel of a human being. So I...

As the title says would it be an overload to take all those classes together? I am wondering because these classes are only offered in the fall semester and I plan on taking the physics subject GRE next fall. What should I expect? Any input would be helpful thank you!