noz92

Why doesn't the chat thing at the top of the page allow you to use some of the smiles that it's original designers have? It doesn't even recognize :hello: .

I've also noticed that if I take a walkie-talkie and tune to ch.1, radios I have that are able to tune to that low of a frequency don't pick up that signal. Why is this?

Now about radio chanals and stations: Why is it that universally, ch.100A.M. seems to always be a long beeping tune. Toys that use radios (you know, to broadcast your voice on the radio) seem to take advantage of that by tuning themselves to that broadcasting chanel. But we've had A.M. 100 for longer then we've had the technology (or money that the average person is willing to spend on a child), so why is it done that way?

I could be misunderstandin what your saying too.

Well, when you said we were never there, so we never will be,: Remember, matter can be niether created nor destroyed. So technically we were there. And the first time machine part, wouldn't that be at the exact time of the big bang. At that time, it would be posible for an Einstein-Rosen brige to have formed, thus being the first time machine type thingy.

http://physics.org

Thanks.

I see.

Well what would a rod antenna do that a car shaped antenna can't (the car ones bigger)?

I think the title of my thread explains what I'm going to say. If someone were to build a time machine and go back in time, and ettempted to change history by, say, telling Abraham Lincoln not to go to Ford's Theater, for he'll be shot by John Wilkes Booth. Would this change Lincolns mind about going, and thus avoid the whole thing, or would that be the cause of Lincolns going in the first place (temptation)? If the former is true, I wonder if the original timeline would have ever existed at all, and what would happen to intellegent beings of that timeline, would they all just die, or would they stay but not really exist?

Why do radio companies spend so much money on antennas for there products, when they can simply use the protective layer around the radio instead? Or, (car radios) to get the best quality, use the exoskeleton of the car as an antenna. I'm positive this will work because I've done similar experiments with a television (that had no antenna)(same basic concept). I found that I can use anything as an antenna (or almost anything). I even used my finger as an entenna and it gave just as clear of a picture and sound as the classic metal rod.

I didn't try google, because they always give me too many things, I need my seaches a little narrower, so I chose MSN, and didn't find anything good. But maybee I need to look through all of the results.

Well, I'm more interested in π, e, y, and Ф, and one's like those, but I'll try a search.

thanks, but what do each of them equal (ex. π≈3.141592654), and how exactly are they used (πr²=a)?

oh

What are all of the mathematical constants that we know of (and what are they used for). By that I mean numbers such as pi, e, y and golden ratio. And could somebody please tell me how to create mathematical symbols and formulas on this site? I know it's possible, I've seen people do it on this site before.

I'm not ecxactly understanding what you're saying.

According to general reletivity, there can be no absolute time, thererefor, there is no way to build a clock that can be the same time for everyone. Yet special theory says that light is the same speed to all observers, no matter what there speed. Why not build a clock that measures the speed of light. For example, say when light reaches point A to point B, we count that as one second, or something [of course that would be a sort of artificial time, but it would deffinitly help people never be late (of course, the time difference of moving at 2km/s and 0km/s would be so small we don't even count it)]. Every second, or what have you, a radio signal would be sent out (but then again, that would kind of mess up your wach), and waches would pick them up, kind of like how we have the atomic clocks today.

How can binary be used to make letters, spaces, and punctuation marks? And how can binary be used for computers to store data such as pictures and images?

NASA.gov National Science Foundation European Southern Observatories ESA

What exactly is binary (I know it's a code that computers use to share and store data), but how does it work, what is it (as in is it electrical signals or something?), and what is the codes, and how does a computer know what 1's and 0's are?

I've been reading the book A Brief History of Time , by Stephen Hawking, in some of his chapters he's mentioned that :all particles are also waves", or something like that. How can something be both a wave and a particle? Particles are packets of energy and matter, and waves arn't in any neat little package, but rather spread out. To me they seem to be very different things.

What do you mean by '-hours'?

I'm not entirely sure how much energy a joul is, I'm more familiar with watts, but I'm not sure if watts is metrics or english. so how much is a joule? How do you do the exponents?

Then what is that amount of energy equivalent to?