Development Cycle Archive

OH speaking of misinformation, you cant technically see ANY light, regardless of the form. Also a laser is just a compact beam of light regardless of its frequency. What people "see" as light is just what parts of the spectrum reflect off an object intoyour eyes. A white object reflects all light thus you see it as white. A black object absorbs all light, thus its black. Our vision allows us to see the middle of the light spectrum, we cant "see" the Radio, Microwave, Infrared, Ultraviolet, X-Ray or Gamma rays. Also, most lasers use a frequency that is within the visible section of the light spectrum.

To the one who is spreading misinformation i suggest you read this, it doesnt have too many technical terms to confuse you.

http://science.howstuffworks.com/light.htm

Agreed! You should read that. Finally, you post something intelligent.

By the way, "reflection" is what I was talking about when I said "diffusion". But here's the difference: A mirror reflects light because its not distorted.Sandpaper distorts the light that strikes it (another experiment you should try), and therefore that light is DIFFUSED. I'm sure few people are wearing mirrors, and thus the light is reflected as it is DIFFUSED, or reflected in many more paths than a right angle. Notice when you look through your textured glass window or shower door, the image behind it isn't clear. That's because the light passing through it is DIFFUSED.

If this word confuses you, here's the definition:

Main Entry: dif·fuse Pronunciation: di-'fyüz Function: verb Inflected Form(s): dif·fused; dif·fus·ing Etymology: Middle English diffused, pp., from Latin diffusus, past participle Date: 14th century transitive senses 1 a : to pour out and permit or cause to spread freely b : EXTEND, SCATTER c : to spread thinly or wastefully 2 : to subject to diffusion; especially : to break up and distribute (incident light) by reflection intransitive senses 1 : to spread out or become transmitted especially by contact 2 : to undergo diffusion - dif·fus·ible /di-'fyü-z&-b&l/ adjective

I rest my case, look at your own definition bro:

Main Entry: dif·fuse Pronunciation: di-'fyüz Function: verb Inflected Form(s): dif·fused; dif·fus·ing Etymology: Middle English diffused, pp., from Latin diffusus, past participle Date: 14th century transitive senses 1 a : to pour out and permit or cause to spread freely b : EXTEND, SCATTER c : to spread thinly or wastefully 2 : to subject to diffusion; especially : to break up and distribute (incident light) by reflection intransitive senses 1 : to spread out or become transmitted especially by contact 2 : to undergo diffusion - dif·fus·ible /di-'fyü-z&-b&l/ adjective

Looks like you're winning the I am Stupid contest, here... Try again, buddy boy. Wait, didn't you say you weren't going to try and fight again?

Lastly, I don't remember stating that I hate Imperials. I do, however, hate the way they act. (well, most; at least)

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ssublime42 wrote:

I rest my case, look at your own definition bro:

Main Entry: dif·fuse Pronunciation: di-'fyüz Function: verb Inflected Form(s): dif·fused; dif·fus·ing Etymology: Middle English diffused, pp., from Latin diffusus, past participle Date: 14th century transitive senses 1 a : to pour out and permit or cause to spread freely b : EXTEND, SCATTER c : to spread thinly or wastefully 2 : to subject to diffusion; especially : to break up and distribute (incident light) by reflection intransitive senses 1 : to spread out or become transmitted especially by contact 2 : to undergo diffusion - dif·fus·ible /di-'fyü-z&-b&l/ adjective

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Which is... What, exactly?

Also, as a LASER becomes more energetic, it moves up in the spectrum of light. Therefore, the stronger the laser, the further it is from the Visible area of the electromagnetic spectrum. That means, if you have a visible light LASER, its pretty weak.

Diffusion utilizes reflection, every object "reflects" some light. All diffusion does is distort BY REFLECTION at a certain scale.

"You could not see a laser. Not only is that beam traveling at the speed of light andof couse far too fast for the human eye to see, it is typically in wavelengths that inperceptable to our vision."

Last i checked MOST lasers were class 1

As you know (hah note the sarcasm), a Class 1 laser, such as one in a CD-ROM or CD Player, has a total output of 0.5 mW(that's Milliwatts, not Megawatts). As a LASER gets more powerful (such as a barcode scanner at your nearby store, which would prolly be a "General Store," in your hick-town), it goes up in class and power. A Class 2 laser is about 1.5 mW, and is in the VISABLE spectrum of light.

Here, here's a breakdown for ya, since you're having so much trouble grasping it.

Class 1 Laser. A Class 1 laser is considered to be incapable of producing dangerous radiation levels and is therefore exempt from most control measures or other forms of surveillance.

Class 2 Laser (Low Power). A Class 2 laser emits visible radiation (400-700 nm). Eye protection is afforded by the normal human aversion response to bright radiant sources. This type of laser may present some danger if viewed directly for periods exceeding the 0.25 second aversion time. The "Class 2a" classification was developed for supermarket bar-code scanners; Class 2a lasers are not intended for viewing but are not hazardous if viewed for up to 1000 seconds. Class 2 does not apply to lasers radiating at wavelengths less than 400 nm or greater than 700 nm.

Class 3 Laser (Medium Power). A Class 3 laser is hazardous under direct beam and specular-reflection viewing conditions, but the diffuse reflection is usually not a hazard. A Class 3 laser is normally not a fire hazard. Ultraviolet (UV) and infrared (IR) lasers that emit invisible beams (less than 400 nm and more than 700 nm) are always Class 1, Class 3 or Class 4. Class 3 lasers are divided into two subclasses, 3a and 3b, each having slightly different control requirements.

Class 4 Laser (High Power). The direct beam, specular reflection and diffuse reflection from a Class 4 laser are hazardous to the eye and skin. A Class 4 laser can be a fire hazard.