Recent content by univeruser

Nope, I was talking true 3-dimensional projection. Just think, if it was possible to like stop a beam of light (laser in this case) in midair, if you combine this with a laser projector, it could prove to be a vital replacement for holography (i.e. the laser will scan depth, i.e. z-axis, with...

I know, but how is it able to control the z-axis with the slider? With lenses?

Please! I'm like waiting three days and not a single response! If you don't know the answer or won't give it here, atleast give me a "No!" message or such. P.S. I'm in no hurry, but I kinda am getting frustrated. I hope this post didn't come too rude on you people. Sorry for that.

See what I mean http://www.lanl.gov/orgs/tt/pdf/techs/3dlaser_pointer.pdf". Actually, coming to the point, how is this laser pointer at the Los Alamos National Laboratory able to control the z-axis with the slider? There was a previous thread by someone else which was replied with something...

Hopefully, you ain't trying anything with uranium-238 or thorium. I really don't know if this could be possible, but you could try americium that you can find from smoke detectors. I believe over some 70 years or so, it turns useless for your purpose as it decays into neptunium. Moral? Buy...

Hi all. As the question suggests, there is nothing much I need to explain. It's simple: what is xn=y, if x and n are given? Since this is an algebraic equation, it becomes x=n√y. Like for example, 3n=9. With a little bit of common sense, we can see that n is 2, but what about larger numbers...

I'm using phototransistors, so of course, an electronic one. I'd also like someone to try and make a SPDT that uses one phototransistor, if not, then two or even more. Since I find difficulty in finding phototransistors, it should be the reason why I would like to hear about a single...

Hi all. I am looking on how to make a single pole-double throw (SPDT) switch using phototransistors that can be activated by IR LEDs (not from a remote, i.e. in pulses, but as a single arrangement of a switch, cell, and IR LED). Please keep it simple, I am only doing experiments. I don't...

I am having to ask this from lack of electronic components in my area, so, I want to ask if it is possible to make an AM transmitter (short range) using a clock oscillator? I believe it might be possible, but as the crystal is 32768 Hz, it makes sense to ask, what kind of receiver set should I...

All right. I myself am searching for another method, but this is far by the easiest...and the best. Let me tell you the limitations well in advance: This method only works for perfect squares. You can calculate square roots of numbers upto 4 digits. Let us take the number 9604. It...

You're right, by building this I am simply trying to understand more of electronics. Moreover, as I now know from you that spying is illegal, I could use this circuit simply as a wireless microphone, and so on. And by the way, is it illegal to interfere with the reception of another station...

http://www.electronics-lab.com/projects/rf/002/davidtx.gif When you look at this image, what is referred to by "4u7"? 4 μF? And what about 4k7? Does that mean seven 4000 Ω resistors? Secondly, I believe sci-toys.com contains information on how to make an AM receiver. I could settle for a...

No, I can't use a loop antenna, taking into consideration the minimum diameter size and circumference thickness. In fact, I am making a spy bug. So, keeping in mind that a smaller size would be better, could I receive a schematic on how to make a AM transmitter using the oscillator from a clock?

Seriously, no, I don't have neither a PSP nor a PS3 for which I could access the Playstation Store. Secondly, they are just generated in random order by a human, so no way. Thirdly, I believe I may have been misled in performing a fake online quiz, for I clearly remember that my browser...

As it suggests, the problem I face is to how I carry about an Earth connection (for an AM radio transmitter set I made) instead of burying it into the ground? Of course, if I make a radio set, I simply can't carry it about making an Earth connection into the ground. I have provided a solution...