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It's unfortunate how we start off in life stupid and inexperienced, and we get smarter and more experienced as time goes on and by the time we know how we should have lived our lives it's too late and we are often loosing our memory by then. Alan

It may become necessary one day. I said something about this once in another thread and it wasn't taken seriously but I'll say it again. One day we may have problems with overpopulation, food supply, and other resources, and of course it's not easy for people to travel in space. If we...

Congratulations on your first build, my first build was also in a C6 but it was an M140 and is still working good. :gj: Alan

It's kind of expensive if you're not going to use it quite a few times. Laser Diode, Photodiode, and LED Can Opener Alan

Hello Tom, welcome to LPF. I think you are the only member in Austria, so I invite you to also post here: http://laserpointerforums.com/f57/countries-lpf-where-you-94536.html look at post #2 to see a list of where our members are located. Here is the link to Survival Laser International site...

:eek: That is really shocking, I see the video is almost 3 years old, I hope he never bought a more powerful laser and I hope he still has his eyesight. Alan

Yes people really can be that stupid, and it's not their fault that their that stupid, and we don't want them to remain that stupid. If the OP were that stupid then the way this thread turned out they may be intimidated by our replies and not want to post again. Maybe we can educate and help...

Yes and it would be great if we could artificially create temporary wormholes between 2 points. I suppose there would be a problem with that like too much power required. Maybe they will be able to create micro wormholes that could be used for communication or to send probes through. Alan

Why is every new member here automatically a troll or a returning banned member? I know he is probably some kid that got careless but why does that matter? If you don't like threads like this then just ignore them and don't post. If we keep running off every new member it's no wonder that the...

I wonder if the 9th planet that they can't find is very dark, that would explain why they are having trouble finding it. They say it's mass should be about 10 times that of earth so it's not likely small. As for some type of FTL drive, I wonder if there's a way to travel between two points but...

:gj: Rich, it's always good to see DIY stuff like this, it's too easy for us to just buy parts where the hard part is done for us and we can get lazy. Alan

Re: Interstellar Space Travel Humans can only live up to a year in zero gravity, or so they say, after that there's too much damage, all your muscles shrink, even your heart shrinks in size. Mars is another matter, plenty of gravity, although I question weather someone born there in the lower...

Re: Interstellar Space Travel Right now I would agree, but once it's certain it is to be a permanent colony and will be mostly self sustaining, then it will be ok for them to have children, and in fact necessary. This will take a very long time, think of them like the pioneers who settled the...

Re: Interstellar Space Travel It's more likely we will get struck by an asteroid, let's hope it's a very small one. I agree, there are a number of natural disasters that could be catastrophic. Or war or some virus or something. Alan

3 years isn't so bad. I haven't built a laser in more than a year and a half and I still never posted a build thread with the photos from my last build.:crackup: Your power output is the same as my S06J 12X 405nm, are you using a 3 element lens? Or just not overdriving it? Have fun and don't...

Won't a beam expander make it less visible when pointed straight up but more visible at greater distance when pointed in someone's direction? Maybe Alaskan will comment here, he is an expert on beam expanders. A 1W 520nm without a beam expander should easily be visible from more than 2...

Re: Interstellar Space Travel I heard that the new inflatable modules are supposed to be stronger than steel and are much safer than the modules the ISS is made from, I don't know what it's made of, I heard a radio show talking about it recently and that's what they were saying. Yes micro...

Re: Interstellar Space Travel It's too far and too expensive to be going back and forth. In time that will change. Remember also that it currently takes a minimum of 6 months to get there, Mars is also 1/3rd gravity, not easy to adjust back to 3 times gravity again. The astronauts from the ISS...

Re: Interstellar Space Travel They have slowly been solving these problems over the years. This is why a manned space program is important, they figure out the problems and eventually find ways to deal with them. On Mars they will need greenhouses to grow their own food and a way to purify and...

Re: Interstellar Space Travel The first Apollo moon mission cost more than that, and that was in 1960's dollars. I am guessing more like half a trillion in today's dollars would get it done. I do think a moon colony is a good idea, there's probaly stuff we can mine there, it might be possible...