Mystery Definition and 913 Threads

In 2D for example, warping it only makes sense in a 3D enviorment. In a 2D world, bending 2D would be meaningless. So in GR when we talk about bending 4D ST, is a fifth dimension needed to give ST something to "bend into"? If not, in what sense can we talk about warped ST? I suspect that...

I saw penguins swimming at an aquarium yesterday. They swam deep underwater and they had streams of bubbles escaping from a spot on their backs. My mom thinks that penguins have some sort of a blowhole, but I've never heard of this. What was that?:confused:

I asked why a bomb going off on one side of a mountain would seemingly affect gravity for people on the other side of the mountain about a year ago. Experienced in Nam with valley floors about 2 miles apart. That's a lot of rock and soil seperating those who experienced this from the explosion...

I just saw this show, I know it has been on in europe for a while but it just started here in the US. I was wondering what the equation they were using for the offers from the "banker", anyone figured it out yet? Goooooogle turned up very little.

(t*y'(t))' = t*Dirac(t-2), t>0 we know that y(t) = 1 lim t--> o+ solve for y(t) the solution says that by using f(t)*Dirac_a(t) = f(a) * Dirac_a(t) we get (t*y'(t))' = 2*Dirac(t-2) Dont see how they get that

I consider myself a pretty advanced user of Excel, but this one has me stumped. I don't deal with toolbars very often, so I am in uncharted territory. I have a group of macros. At one time, when I ran one of the macros, I realized I had a circular argument and it created an error. No biggie...

The question goes as follows: Why are clockwise and counterclockwise referred to as "senses" rather than directions? It should be obvious, right? But I just can't seem to figure out what they are talking about. I mean, senses are touch, taste, hearing, seeing, smelling. What does...

This question has been bothering me for time. How does a moving bicycle manage to stay upright? but when it slows down it tends to fall to a side. Can someone please explain?

hi does somebody knows why we hear a noise when tuning a radio? I mean when you turn the radio tuner to find a station. not for a typical station. during turning the knib. I know it's becouse of a electromagnetic wave. but I don't know that wave and its source. tnx.

In free electron theory, electron doesn't feel any potential due to ions r co-electronsm they r totally free..then why don't they fly off from the metal boundaries?

Thanks for any replies in advance. I am currently trying to discern the theory behind an air-lift. A very large group of people are currently debating exactly how an air-lift works. Imagine a pond with a pipe in it. An airstone is place at the bottom end of the pipe and air is pumped...

A few days ago a buddy of mine showed me a two year old article, telling that Israel have developed an optical CPU. I did check i further and it is true, but I can not understand how such a device can work.. Is there anyone who could explain it to me?

Hi, this is going to sound very stupid. Is Red the same as Re? Its just that in some equations, I have Red, and then in others Re. It might not sound like much of a problem, but I'd really appreciate if someone could clear things up for me. Thanks!

Why are Bicycle wheels the same size? Is it because it is easier to manufacture and maintain or does having same wheel sizes in the front and back offer added stability when compared to having a bigger wheel at the back (like the early models)?

You can just google it so I won't get in trouble for linking to it. Anyone ever looked at it? It looks like just optical illusion silliness to me but is there any possibility of some other sort of thing going on? Was just wodering if anyone ever did anything meaningful there in the way of...

Hey everyone, I was referred to this forum by CeeAnne, and I'm really hoping I can get some help. I have a series of clues for a murder mystery. There are 8 total clues, and all of them seem to point to different people who commited the crime. I'm stumped at the moment. The author of the clues...

A colleague has just posed this question and I need some help. There is a sealed room in space that has no external infulences. Inside the room is a fridge. The fridge is powered on and its door is open. The question is, what happens to the temperature of the room ?

I'm trying to perform the following integral \pi \int\limits_0^\pi {e^{2x} } \left( {\frac{1}{2} - \frac{1}{2}\cos 2x} \right)dx I split the integral and temporarely ignore the Pi so that I get \frac{1}{2}\int {e^{2x} dx} - \frac{1}{2}\int {e^{2x} \cdot \cos } \left( {2x} \right)dx...

I had little interest in some thing written by Homer 500yrs after the fact, prefering to think the Trojan war a myth, however archealogical evidence is giving some bones to the the myth, i guess we will never know if there was a "wooden horse" or if the characters in Homers story took part in...

Today I received a phone call from one of those automated political telephone campaign recordings. The number was blocked though! That really suprised me. As far as I know businesses of any sort must be listed and can not block their number. I realize that political campaigns, legally...

Hello everyone I'm suppose to find a k, that will make this matrix singular, well i looked up what that ment, and it means i have to make the determinant 0. So i the matrix is: -3 2 1 -9 8 3 (9+k) 2 0 so i found a random minor, say M13.. so i would have -9 8 (9+k) 2 det = (-9)(2) -...

Hello All, Here is an article we have just published on a very interesting development concerning dark matter: http://www.isracast.com/tech_news/061005_tech.htm Comment are most welcome. Iddo

How do we know that a graviton has to be spin 2?

I thought we might try another variation of "What was it?". http://img345.imageshack.us/img345/603/idbadge8il.jpg

Can somebody explain how and why Deja Vu happens?

I am watching television, seeing BillG, MichaelD, and google. But anyone can tell me who google man is? The News is about business competition. That "googler" looks like an Arabian or S.American. What is his name ? I just don't think it is google's manager. Please tell me, i also want to...

Hey guys, what is dark matter?what is it made up of and where is it?can any theory explain this? can string theory explain this? so please frendz help me out of this.

I see commercials for these every now and then. It is some metalic braclet that someone where that grants them some special energy or something. I cannot make out what exactly it does because the commercials are so damn vague. The commercials consist of people just saying how great the bracelet...

http://www.livescience.com/forcesofnature/ap_050906_sisters_bulge.html

I have no idea... A man has three daughters. His friends want to know how many years old the daughters are. The man gives them a hint. HINT #1 The product of their ages is 72. The friends say this is not enough information so the man gives them a second hint. HINT #2 The sum of...

I'm just wondering about something, look at this: \[ \begin{array}{l} \sqrt {3 + x} + \sqrt {2 - x} = 3 \\ \left( {\sqrt {3 + x} } \right)^2 + \left( {\sqrt {2 - x} } \right)^2 = 3^2 \\ 3 + x + 2 - x = 9 \\ 5 = 9 \\ \end{array} \] Obviously something isn't right...

Please help me answer my son's question: It seems as though the outside edge of a spinning CD is moving faster than the middle of a CD. This can't be true, right? Why is it not true mathematically speaking? Thank you. Donna

Why are the bottoms of large clouds flat?

for the past week or so, we've received random calls from quebec. sometimes at midnight. all these calls are are a series of beeps. well, today, I got the same call, except it was from ontario...

orbit n orbital! hi, what is the difference between Orbit and Orbital? when electron is moving so fast, how can we assume of arranging them in an arbital? I am unable to get the actual concept!

I wanted to catch the latest action show with my girlfriend, so I went to buy 2 movie tickets. Walking away from the counter, I bumped into a friend Clever Joe. Clever Joe was interested to know my movie ticket numbers, but I cheekily refused to tell him the answer directly, telling him...

Every year when I was a young child my aunt would take my siblings and I to Chuckee Cheese. Earlier today I was reminiscing about the great times when I remembered that everyone would receive a small and invisible stamp upon entering the restaurant. Since they did not charge an admission fee...

What is SLI? Many crazy gamers like to make a SLI computer, what is SLI? Do you know?

http://www.maryceleste.net/

They haven't figured out what is causing these anomalous hot spots near Santa Barbara: Earthfiles.com Address:http://www.earthfiles.com/news/news.cfm?ID=938&category=Environment

how do they figure out how many people have watched a certain show/event?

well, don't know if anyone reads the books... but one way to find out... who reads them eh? well, my girls at camp are doing "wizarding for muggles" which is a harry potter themed two weeks at camp. its been loads of fun. the other day the 6th book came out and we went to Borders in Keene to...

hello,i have question to ask here. :smile: 1. which of the following is not correct for an ideal gas? A. the average kinetic energy of the gas increases with temperature B. the force of repulsion between molecules is proportional to the distance between them C. the gas...

g'day everyone... i was wondering the significance of Mr Gann's square of nine, and how he could just find this "magical" thing and then apply it to the markets... Also, what is the mathematics behind it? I've looked it up on google but it doesn't have anything about either of these...

Hi, I know this is a physics/math forum, but I'd really like some help on this equilibrium question. :frown: Consider this reaction: 2NO2 <---> N2O2 If I increase the pressure, then the system will shift to the right, and thus the forward reaction rate will increase. After awhile, a...

Hello I've been learning the basics of physics over the past few weeks and thought I knew what they meant when they would refer to the dimensions of something for instance if you asked me what are the dimensions of acceleration I'd say 'change in velocity/time'' or 'v2-v1/T' but I came across a...

why does the red dot on Jupiter i think its like a storm or something or a hurricane but does anybody know why it does not stop? and the cause of it ? thak u craig

I have been playing around with an idea for a few years and I am interested in receiving any feedback. I am an amateur, so if there are any issues with my logic, please feel free to straighten out my thoughts. First, imagine 2 astronauts floating in space. The first astronaut has an atomic...

this is probably in the wrong forum but... I've seen how paypal and other sources encrypt HTML. but how exactly does it work? how does a browser read the encrypted text and know what to display. I must admit that google has failed me on this one :frown:

Three guys walk into a hotel. The Bell boy charges them 30 dollars for the room. Each of the thee men pay 10 dollars. The Bell boy gives the money to the manager but is repremanded as the room only costs 25 dollars, he is told to give 5 dollars back. To make things easier he gives each man...