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Full story: Air Force Wants Ray Guns for ‘Weed Prevention’ | Danger Room | Wired.com I find this weed terminating gun to be suspiciously very similar to this "dazzling" ray gun: Air Force develops

Greetings! I present to you my latest experiment - Roomba robot attached with 4 lasers to create an automatic balloon terminator. Lasers attached: Green CNI PGL-C >500mW Blue WL Arctic 1W Two Violet IgorT lasers about 200mW each (they were not focused, added for just for good looks). I have...

Hey, I took my one year old daughter to the zoo today, and used the opportunity to satisfy my curiosity about which animals would react to a laser and how. Grabbed one of my greenies, same one that drives my cats crazy. The results were mostly disappointing, almost all animals didn't react -...

Hey Laser Buddies, I've uploaded two new videos, this time Wicked Lasers Arctic vs. Balloons. The laser is G2 model (with secure smart switch), measuring 730mW on my LaserBee I Deluxe LPM. The videos demonstrate very well that popping (or burning) capability is not just a function of power, but...

Hey, I went diving few weeks ago, and took for the first time a "200mW" (it's actually around 170mW) DX laser, which is supposed to be waterproof down to 10 meters deep. (This is its page: DealExtreme: $59.31 HLP18130 Focusable 200mW Red Laser Pointer (2*123A Included)) I knew there's a good...

Hey All, Now that 1W portable lasers are becoming available, it made me wonder how - much higher can it get? I mean the absolute maximum theoretical limit, assuming 100% efficiency in converting battery electricity to light. Taking for example a portable laser that runs on a 3.7V 2500mAh...

Hey, I'm not sure if it was posted already (tried to search it), but I just noticed that DealExtreme dropped the price on the famous "Dilda" 200mW laser from about $43 to $29.53 (and shipping is free), perhaps because of competition? (o-like?) As an owner of 3 of those and a LPM, I can say...

Hey All, Here's my review of the CNI PGL-RG laser - a portable laser that includes both red and green lasers which are combined with optics into a single yellow laser. I'll start with this picture: Purchase: - Got it in one of the CNI group buys arranged by Glenn (along with 10x beam...

Hey, After having a green laser pointer for almost two years, I just noticed something very nice, which I never read about in the forum, so I thought I'd post it. I knew about freckles before, I've seen it on walls many times, but this effect is amazing: 1. Turn off lights (including monitor...

Hello, Does anyone have experience with IR lasers and know of any crystals or other materials that are fluorescent under IR? I'm getting a bunch of crystals of many kinds and I already have 405, 473, 532 and 650nm lasers, and I'm thinking of buying an IR. I'm checking Dragon Lasers, they have...

Hey, I was looking into a small on-line demo tool to show for which wavelength what the color looks like, so I can imagine how such lasers would look like. Spectrum drawings are plentiful, but I wanted a tool that I can select a specific wavelength and get its color in a big painted area...

Hey, I've had these 200 Uranium glass pieces for a while now (got them in eBay for $9.99), and finally got to making photos and videos of them with lasers. The natural color of this glass (under white light) is a "sickly" green/yellow color, and under laser light it's different. They are very...

Greetings LPF members and guests. I've been working quite a bit on this review, mainly on producing the photos and videos. Finally I have everything I wanted to post, so here we go. I've divided the review to sections since it's very long. So where do I start? At the beginning... Purchase...

The title says it all... XU5I2k_sBMQ

Hey, I noticed a new focusable DX 200mW red pointer, this one seems a bit different from the older two versions (Dilda and Dilda v2) - a bit more expensive ($59.31 vs. $43.02), different body, uses different batteries (CR123A vs. CR2) and described as "water resistant". Link: DealExtreme...

Hey everyone, It's time this metallic element got its share of spot light and respect in this forum, after all the fuss around Mercury and Gallium and Bismuth. I have recently purchased several pieces of Tungsten and I'm simply amazed by it. Tungsten is fascinating, so much interesting...

Hey, I've been enjoying my new Deluxe LaserBee I power meter the last few days, and here are my measures of all lasers I bought from commercial companies (so far...  8-)), especially made for posting in LPF. This is not a review of these lasers and companies, any other aspect of product...

Hey members, Few days ago I went to a big store that sells crystals and minerals (a huge collection of many kinds), hoping to find some nice fluorescent stuff. I took a BluRay and a green laser pointers, and got the seller's permission to wander around in his store and shine every crystal and...

Hey All, Check out this news article about a new method for improving the "Kosherness" of food. This is from today (April 7th), from the respected number one online news site in Israel (Ynet), unfortunately it's in Hebrew and there are no pictures or technical stuff. Here's the original...

Hey members, I got these little balls from DX, each is 6mm in diameter and made of a strong Neodymium magnet coated with Nickel. These are so much fun to play with, make shapes and structures and then squash them. There are several basic small shapes such as triangles, pentagons and hexagons...