# Search results

1. ### News Richard Dawkins would have an Aneurysm

I thought that other Richard Dawkins fans might be interested in this. Not too long ago, I was flipping through the channels, and I was going through the religious networks when I saw a program entitled Tiny Tots for Jesus. I was so appalled that I turned on the information for the program and...
2. ### Green Meteor

Hello, I have a question for the astronomy people here. Last night I was outside around 10 P.M, and at one point I just happened to be staring up into the western sky when I saw one of the brightest, most beautiful meteors I have ever seen. The weird thing is that it had a faint green tint to...
3. ### Arc Length Problem

Homework Statement Hello, I have an arc length problem that I’m stuck on, and I would really appreciate it if someone could help me out. I understand the arc length formula and everything, it’s evaluating the integral produced by it. The author in the book I got this problem from tells the...
4. ### Indefinite Integral of (1/x^2)

Homework Statement Hello, first of all I would like to apologize for the fact that this question is extremely trivial compared to the other questions being asked. I have a improper integral problem, and the entire problem itself is not relevant, because I understand everything in it except...
5. ### Dancing Orbs and Strange White Light

Hello, I wanted to make a post about this, because this is a topic that has bothered me for a very long time. I live in a very mountainous region, and I just recently discovered that there have been stories going around this area for a long time about something that I saw when I was much...
6. ### Is it possible to self study deep physics?

Hey, I am currently planning on majoring in chemistry, but I am obsessed with physics as well. The school I plan on going to only offers physics as a minor degree, and I can think of many more practical things that I would want to do with chemistry than physics. Still, I like physics more, just...
7. ### Origin of y=mx+b

Hello, could someone please explain to me why the equation y=mx+b uses 'm' for slope and 'b' for y-intercept? This has always bothered me for some reason.
8. ### Quantum Mechanics

Hello, I was just wondering, is quantum mechanics something that you have to have lots of background in math, or can it be understood by someone without significant math education? I've never learned calculus, but I'm planning on starting to learn it very soon. I was thinking about watching some...
9. ### Trig Typo?

b]1. Homework Statement [/b] Hey, I have a problem that I worked out in a trigonometry book. I got different answers from what the book gave, but I think that I am right and the book is wrong. Could someone please tell me who is right? Homework Equations Okay, they gave me the following...
10. ### Periodicity of Inverse Trigonometric Functions

Homework Statement My problem from before has been more or less resolved, but now I have a new, bigger problem. I need to figure out how to find recuring values for trig functions. I'm having a hard time figuring out how to 1. Get the equations associated with a given value for the trig...
11. ### Converting Inverse Trig Functions to Degrees

Homework Statement Hello, I have been doing some trigonometry lately, just trying to get the trig I need for calculus, and the book I am reading goes into inverse trig functions. The book dives into trig equations without giving a very good description of how to find the trig functions. I...
12. ### Pantheistic solipsism vs. Many World's Approach?

Hello, I recently came across a wikipedia article entitled "pantheistic solipsism". I had never heard of this before, and when I read the article, it said that pantheistic solipsism is a concept that says that one can create a entirely different parallel universe simply by dreaming it up. When I...

Hello, I have a question for those of you who have read Road to Reality by Roger Penrose. I've been debating on whether or not I should read this book for ages. I have always wanted to understand science at a mathematical level rather than just a popular science and conceptual level. The thing...
14. ### Lorentz Contraction and Mass Distortion Calculation- Did I do this right?

Hello, I recently learned of the Lorentz contraction and mass distortion effect in a physics book, and for the sheer heck of it, I decided to see what it would be like if my dog, Little Ann, were sped up to relativistic speeds. I decided to try to calculate it using the equations provided by...
15. ### Inertia and String Theory

Inertia explains some different aspects of motion with great accuracy, but as far as I know, there isn't really underlying explanation of why inertia works. Could the answer to this question lie in string theory?
16. ### What would make a star flash red and blue?

Hello, several nights ago I was outside looking at the sky. I noticed this strange looking star near the horizon, and I swear to you, it kept flashing from red to blue and back. I vaguely remember reading something about this, but I don't quite remember what it was.
17. ### Calculus Books

Does anyone here have any recomendations for Calculus books for someone just starting out?
18. ### Optics Question

Homework Statement Hey, I’m a little bit confused on an optics question on how to find the critical angle when given the indices of refraction for two different mediums. The question deals with a laser beneath the surface of a freshwater pond. The indices of refraction are r=1.33 for the...
19. ### Light Isn't Constant in Certain Media?

Hello, I was recently browsing through on of my physics books, and I came upon the following statement: "Newton was right, light does travel at a constant speed, but it does not travel at the same speed in all media. For example, light travels at a speed in water that is about three fourths...
20. ### Is String Theory Correct?

I've been hearing a lot of talk lately regarding the validity of String Theory. There have been a lot of people that I have met that seem to think that the entire theory is completely wrong. Is there something I've been missing out on? I've always been under the impression that string theory is...
21. ### Edge of Space?

Hello, recently I was listening to a radio talk given by Professor Brian Greene. I have always been able to understand him in his books, but on this particular occasion, he said something that I couldn't quite understand. He said that there is no edge to space, only an edge to time. If the...
22. ### Quantum Physics

Hey, I've been thinking about getting into quantum physics, and I just wanted to ask whether it's very difficult or not. What does the mathematics involve? Is it something that someone other than an experienced mathematician can handle? Maybe I should check out relativity first..........
23. ### Do Equations in More Than Three Variables Represent Graphs in Higher Dimensions?

Hello, I posted this several weeks ago in another forum, but I never really got a good answer. Could someone please take a look at this an tell me if it's mathematically valid? Thanks! Do Equations in More Than Three Variables Represent Graphs in Higher Dimensions...
24. ### Do Equations in More Than Three Variables Represent Graphs in Higher Dimensions?

Hey, first of all, I'd like to apologize if I'm posting this in the wrong forum. I wasn't sure whether I should post it here or in the mathematics forum. Recently I was going through an Algebra book, and I saw a chapter on solving linear equations in three variables. The book explained how these...

Hello, I tried earlier today to explain this to some people in the forums that are purely scientific, but one of the moderators locked it, saying that I needed to explain more fully what I was trying to say. So, in this post, I will attempt to explain this theory that I've read about in several...
26. ### Bizarre theory-Could there be any truth in this?

Hey, first of all, I apologize if I'm posting in the wrong place. I thought about posting in the philosophy thread, but I decided I'd rather have a more scientific answer to my question. Okay, this is probably going to sound really strange, but here it goes: For several years, I've heard...
27. ### Studying Any Decent Books to Understand Mathematics of Physics?

Hey, let me begin by saying that I love science. I have always loved science. But to be prefectly honest, math has never been one of my strong subjects. It's not that I'm bad at math, I can understand most math concepts when given enough time to study them, but all of my math courses go by at...
28. ### Question about the Photoelectric Effect

I'm not sure if I'm posting this in the right forum, so I apologize in advance if I'm not. I just have a question about the photoelectric effect. As I understand it, the photoelectric effect is where light/photons can knock electrons off a metal surface. I think that the intensity of the light...
29. ### Something I don't understand about String Theory

Hello, I have read a few books on the subject of String theory, including The Elegant Universe and Fabric of the Cosmos by Brian Greene (that guy is AWESOME!). Anyway, Mr. Greene may have answered my questions somewhere in his books, but the other day, I heard someone say that strings are tiny...
30. ### Black Holes and Light

Black holes exert such a powerful gravitational force that even light cannot escape its grip. But doesn't this imply that the rule about how nothing can exceed the speed of light has been violated? If a black hole can suck in light, then doesn't that mean that the gravitational force of a black...