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How Women Are Written In Sci-Fi Movies

I Can't Show You How Pink This Pink Is

Buttle says...

Pink is a combination of red and white light.
There are almost surely numerous combinations of various spectral colors that will look exactly like ultra-pink to our limited eyes. Fitting into the various color gamuts involved in color reproduction and perception is not very simple at all.

Whiter than white washing powders work by using fluourescence -- they transmute some of the ultraviolet light striking them into visible light. The reason this works is explainable by a color gamut, the gamut of the human eye. If we could see in the ultraviolet range that is being absorbed then the trick wouldn't be nearly as effective. There are animals, for example bees, that do see colors bluer than we can, and in fact some flowers have patterns that are visible only to them.

It is possible that fluorescence is partly responsible for ultra-pinkness. If it is, that would have been more interesting than what was presented.

I suspect, but do not know, that the CMYK or RGB color representation schemes are up to the task of encoding the colors you describe. The problem is that there is no practical process that can sense them in an image, nor any practical process that can mechanically reproduce them.

vil said:

It does not have to be about fitting into gamut, pink is a combination of blue and red light, which monitors are good at.

The problem with real world materials is that perception is not as simple as that. The combination of reflected, refracted, and even radiated (transformed wavelength) and polarized light, the micro-structure of the surface and possibly other properties can influence perception.

Like your favourite washing powder makes your whites whiter, this stuff makes pinks look pinker somehow. Its about fooling your eyes in specific conditions. You can simulate the difference between a known pink - a standard colour sample - and this awesome new pink by putting them side by side and calibrating the camera and monitor to show the new pink as pink and the reference pink as less pink, like at the end of the video, but that cant beat walking into an art gallery and seeing it with your own eyes. I mean probably, I havent seen this particular pink, but I have seen modern paintings which look nothing like their RGB or CMYK reproductions.

The Amazing World of Coral Reefs Fluorescence

newtboy says...

I really want to do some UV night diving. It looks amazingly like Avatar to me.
Another video about how these effects are achieved here......
*related=http://videosift.com/video/Ultraviolet-Diving-with-Underwater-Kinetics-UV-Lights

The Amazing World of Coral Reefs Fluorescence

Colorblind Dad Experiences True Color for the First Time

time lapse video of the biggest sunspot in 22 years

eric3579 says...

The solar flares are very cool. I suggest watching in HD and full screen for maximum awesomeness.

Also from YT description:

The surface of the sun from October 14th to 30th, 2014, showing sunspot AR 2192, the largest sunspot of the last two solar cycles (22 years). During this time sunspot AR 2191 produced six X-class and four M-class solar flares. The animation shows the sun in the ultraviolet 304 ångström wavelength, and plays at a rate of 52.5 minutes per second. It is composed of more than 17,000 images, 72 GB of data produced by the solar dynamics observatory (http://sdo.gsfc.nasa.gov/) + (http://www.helioviewer.org/). This animation has be rendered in 4K, and resized to the Youtube maximum resolution of 3840×2160. The animation has been rotated 180 degrees so that south is 'up'. The audio is the "heartbeat" of the sun, processed from SOHO HMI data by Alexander G. Kosovichev. Image processing and animation by James Tyrwhitt-Drake.

mintbbb (Member Profile)

mintbbb (Member Profile)

Sunscreen Works, If You Use it Right

Bloom Boxes

newtboy says...

Please show proof, URL?
This is the exact same line that people against solar tried to sell us 10 years ago...it was BS then, so I'm guessing it's the same today.

Lets see....How much taxpayer money, exactly, per KWH or per turbine (specify size in KWH and type), is being "wasted"? From your certitude I assume you must have a number. If you don't know that number, you can't possibly know if the money is 'wasted' or if it was a great deal for the amount of energy produced, and I'll believe you are simply stating opinion, not fact.

Over what time period are turbines "not paying for their investment"? Are you claiming that, over the full expected lifespan of an average turbine it costs more than making the same amount of electricity with coal? Or Natural gas? Do you include the cost of climate change in that calculation? Didn't think so.

What type of turbine are you talking about...or are you unaware that there are dozens of different designs, some which are not ugly, noisy, or harming any wildlife at all?

The rather rude BS thinking about solar energy is the same kind of rude BS thinking you are displaying, making claims that all turbines suck and should be abolished (paraphrasing you) without any science or math to back you up. On the other hand, just slight investigation shows at least some of your claims are outright wrong. It was about the BS, not the solar energy...understand now?

That doesn't mean that there are not some instances of the problems you describe, but most of them are problems from well over 10 years ago that have been solved. Just painting regular 3 prop turbines with ultraviolet paint reduces bird and bat strikes considerably...making a turbine that doesn't have props worked even better, and they work better at low and high speed wind.

You do know that the government pays the same kind of people to have electric lines on their property, and phone lines, and road ways, train lines, etc...whether they're being used or not, right? They're paying for the use of the land. This is not a new process in any way, or one used only for turbines by a long shot.

A10anis said:

I thought my point was clear. obviously not, so let me try to simplify. Landowners are being paid tax payers money (which we can ill afford) for turbines that are not paying for their investment, are not efficient, and have to be turned off in high winds. Not to mention that they are also ugly, noisy, and are harming wild life (birds and bats are being disorientated by the turbulence and flying into them.)
As for your rather rude comment on "BS thinking," regarding solar energy? Well, I wasn't aware we were discussing that.

What If You Stopped Going Outside?

chingalera says...

@Velocity5-sunlight w/adequate ultraviolet B rays is necessary for the proper absorption as well as the conversion of D into active metabolites-You need the sunlight or a tanning bed-No artificial sunlight that filters UV is effective.
There is no "just take supplements" option...except for the one where you take supplements, continue your cave-like existence, and develop osteoarthritis at 40.

The Absolutely Stunning Dance of the Peacock Spider

chingalera says...

The male peacock spider, attracts it's mate with scary clown mask and urgent, flailing gesture while the hypnotic burst of ultraviolet laser beam penetrate her with eight, SCARY FUCKING EYES ON HIS ABDOMEN....JEEEZUS!!

NASA's Incandescent Sun

US Navy laser lights boat on fire

GeeSussFreeK says...

>> ^deathcow:

Depends on the power I guess. Typical affordable mirror is probably in the 90% - 95% reflectivity. If they pack a megawatt laser than your mirror will be absorbing between 100,000 to 50,000 watts.


Not to mention that not all lasers are in the visible light spectrum. Infrared and ultraviolet lasers wouldn't be repeled by such means.

Machine Malfunctions - Ejects White Hot Metal

rychan says...

>> ^deathcow:

So how does it work?? as metal heats it emits infrared, which we sense as heat. As it keeps getting hotter, the emissions move into the visible light? If you keep heating does it move into still faster light like UV?


Yeah, most materials behave like black bodies and the wavelength of peak radiance increases with temperature ( http://en.wikipedia.org/wiki/Black_body ).

Humans can easily feel the heat from infrared, visible, or ultraviolet radiation of high enough intensity. Actually, I assume we can sense the heat from any type of radiation. Radio (in a microwave), x-ray, or gamma ray. But obviously you don't ever want absorb intense radiation at those wavelengths.



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