Search results

Johns software is very good, the methodology used in the case of two non-combined diodes isn't.(it basically doesn't work for a number of reasons unless the laws of physics have changed in the last 20 minutes) I can do all the numbers for you but "cheap" for components won't happen once you...

Yes it's possible, but handheld....depends if 24 tonnes is considered "handheld" What are you actually trying to drill hole in? and why do you need to be 5m+ away? I've been in laser based manufacturing (and engineering) for a long time and have only ever seen two legitimate scenarios where a...

The only thing that would concern me is if people feel *safe* using crap glasses and take risks because they think they are protected. Dead right though LL, safety first...always. Using lasers as a newbie without glasses is like driving without a seatbelt, you can do it your entire life and...

The moment public perception is commonly altered to make laser users into terrorists it's all over. The war on terror is failing, no if's or but's...it's failing plain and simple, so the easiest way to claw back some numbers is to target those it is easiest to catch. Look at it another way...

Great stuff, thanks Gok :) cheers Dave

Ironically enough there is no law of physics that makes the death star impossible :) There is no upper limit on the amount of energy you can pump onto a lasing material :) Practicalities and heat are a different matter :) cheers Dave

I agree bro, I've just had a lot of years of different hobbies / works that have been made that much harder by government level interference. I'm not annoyed at the governments (they just do what I expect of them) what really annoys me is the hoards of sheep that follow it all along and believe...

You may want to think again on that one.... Oh dear....I've been around a lot of years using lasers for fun and professionally and one attitude I do not want to be associated with is "Come and get it if you think your hard enough" Educated reason can win out but reading the above...

VERY efficient way to get ALL lasers banned. As I said, you need a testable argument to stop a ban not conjecture or speculation and certainly not linking lasers to a more dangerous class of item. Same test as before, neither can a nuclear device unless there is human intervention so the same...

Nuclear weapons have also never resulted in a terrorist attack yet, ergo based on the same logic we should all be allowed to build them as nobody has yet died in peacetime from their use. The only way to beat a ban is with educated statements based around both logic and facts that are testable...

Same all the way round bro, we went into Afghanistan to get rid of the Taliban who happen to be an "organisation" trained by the ISI, Funded by the USA and supported by the UK while they fought the former Soviets, it all comes about because in all arenas no matter what they are our political...

Yep, "Iraq has weapons of mass destruction and if we don't act you are all going to glow in the dark or die of ebola" cheers Dave

When it's reality - that's history It's far easier to stop a ban than it is to get one reversed, how many governments have any of us ever known that have admitted to being wrong on a decision and reversed it directly? In 1968 CO2 powered pellet guns were banned here (made firearms) only when...

Guys, it's never about safety, it's never about stopping crime or protecting people, it's simply about votes. The person that is perceived to be protecting the masses will be perceived as a saviour even when no real problem exists or the problem that does exist can be dealt with another way...

It's quite complex in reality Oz, if reported incidents haven't gone down that doesn't mean a ban isn't working, what matters is wether they have increased by the same factor each doubling time. Some hypothetical figures. Year1:100 incidents Year2:200 incidents Year3:400 incidents (Ban...

I don't have a political opinion (although I'm American I've lived here for 46 years) what I cannot abide or tolerate is when those that are prepared to give the most, to give all they have, to hand over their very lives are penalised then it really is time to kick those responsible out and take...

Same attitude as me :),I look at it as "do your worst" and move on.25 years of that takes character and strength something you clearly have plenty of. cheers Dave

Debilitating illness can lead any of us to make strange or extreme choices. Years ago I suffered a PE and DVT, the worst part wasn't the actual pain (I have a very high pain threshold) it was going to bed at night with the pain knowing I was going to wake up the next day with the same pain and...

Thanks Hakz :) I wish the maths lied...but it never does :( cheers Dave

Plenty of experience Jag, lasers per-se have no heat, they have no molecules to vibrate ergo no temperature to measure. What they do have is power, from next to nothing to massive depending on input power / efficiency. Then you have to consider the wavelength, some materials absorb lasing...