The answer is not real. The tool, on the other hand, is called Perplexity. It "understands" your question, searches the web, and gives you a summary, citing all the relevant sources.
pfjarschel
joined 1 year ago
My story is kinda cool. TLDR: she stole my cat.
We lived in the same street, but other than the occasional nod when passing by each other, never really talked. I always thought she was cute, though. Oh, and she was married to a typical abusive guy.
One day my cat escaped, and after a week of searching, I almost gave up. Then one day she knocked on my door and asked if that cat was mine, because she thought she was a stray, and took her in. She gave her back, apologized, and that was it. But that cat would always find a way to go back to her place, and we kind of agreed to let her have 2 homes. Still didn't talk too much or anything.
Years passed, and she finally had enough of her husband, got a divorce, and moved out. Came to ask if she could take the cat with her, and I said that's ok, she barely came to my place anymore anyway.
More time passed, we kept a little in touch, but still didn't really talk to each other. And then I decided to have a barbecue at home for my birthday... I invited mostly people from work, but then thought: "it would be cool to invite her". And so I did. We talked, and talked, and when we realized, it was already 10 pm (barbecue was supposed to be from noon to sunset). She went home, the next day I invited her out, and long story short, we've been together for almost 5 years, living together for 3 and a half years, have 6 cats, and our first son is about to be born.
Kagi has worked REALLY well for me for all topics, but it is a paid service...
As someone who works extensively with the spin offs instruments, I can safely say that they would be just as outraged. They are all bad quality, fail VERY frequently, and, guess what, you have to subscribe to be able to use all the features of the hardware you bought.
A laser, maybe, but definitely not LEDs. Vapor/gas lamps produce the narrowest frequency bands possible, because it comes from very well defined atomic transitions (Hz range). LEDs produce frequency bands with widths in the GHz/THz range, while semiconductor lasers can maybe reach KHz if they are really good. So, unfortunately, for this type of applications, vapor lamps would probably still be needed.
Source: I work with lasers and spectroscopy.
Edit: very good idea about using non-visible light!