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Sorry, I meant 10mm. So 10 - 30 mm

I thought they had one screen in the middle and mirrors to make distance, oh well. I am not able to find any lenses which are 5cm in diameter and have >10mm focal length, I am not sure what that would look like...

Hello, I am currently working on a project for fun which involves me being able to view a small monitor inside of a pair of glasses; the monitor will either be on the left or the right. I have successfully constructed the hardware side of things and all I have left to do is make the screen...

Alright, thank you! I will think about it, I am scrolling through Spanish/porchagese Law, not finding much.

I suppose, It's just I have hardly gotten any use out of this thing, Put me back £240, now with diminished value.

Yes... That was the point of the thread.... Anyone else have any information?

Care to expand?

Hello, Tomorrow I am going from England to Portugal on a monarch flight. I quickly wanted to know if there are any laws stopping me taking my 450mw green laser on the flight (Check in luggage, not carry on) I have read all of the previous threads but I wanted to know if anything had changed as...

Everyone is so volatile on this forum, It was only a question; I was asking if laser's can penetrate things

Hello, I have recently been looking into magnets and accidently made an EMP out of an iron core and capacitor (I just wanted to make a strong magnet). It then got me looking into Electromagnetic Weaponry. I am a little confused because Gamma and X-Rays are used medically to penetrate the skin...

Sorry if this is in the wrong section but I am hoping for some advice. I was just wondering if anyone knows of any Mp3 Players which have different Directory’s for music, kind of like an IPod where you can create 'folders' to store different music and playlists etc. I am currently creating a...

Again, it's only theorie... It would just be nice to know the numbers.

Can someone help me do the math, If I had 68ci tank at 4500 psi what would be the force exerted if the valve is fully open. Im not sure what the size of the opening is however. Is there any equasions I can use? And just so that I know; would the force exterted from a 4500psi tank only be 150%...

I’m guessing it’s also a no to use one in conjunction with piping to make a large potat.... cannon. Gosh darn it, how long would it take a paintball tank to release all of its air?

I already have, Heh. But come to think of it I wonder how much pressure is created momentarily in the combustion chamber? Just so I have some Reference. 100-150(psi)?

Yeah, I was only talking theoretically, if I was really going to carry it out I would need an oil trap and various other utensils I suppose. Besides, 4500psi bottles cost like $600 each... But if we were talking numbers is it possible? I cannot be right in saying 1 square inch consists of 4500...

Hello, Quick Question. My friend has at his disposal a ShoeBoxCompressor for up to 4500psi (pounds square inch). I was wondering if it would be possible to get some paintball/scuba tanks on each foot to propel you slightly in the air. If this would be possible what size would the tank need to be...

I have taken in all of your consideration and I will sell at $250 once I get my LPM.

''Since you listed this, a lot of these have flooded the market from the $176 GB'' GB = British or Doller?

Yeah, I should have sold it while I had the chance, This thing was $400 half a year ago, and no, It has been in its box ever since, had no use out of it :/, I lowered the price due to the fact everything has dopped. If you know anyone in the UK area that can LPM, please tell me.