A white tank top. But if it’s raining, well, just wear it.
There they go. That’s not the real thing. Or did it?
Well, it wasn’t, but that’s not the point: it was the actual image in that picture that did it.
Here’s the real image.
Now you know why it would have rain in New York City. Here is the real image again courtesy of the Metropolitan Life Museum:
This is why it would have rain in New York City.
This is the original.
(Thanks to Brian for the link!)
“Fluorescence microscopy is an approach that has been developed over the past 10, 20, and 30-some years that takes advantage of the fact that we all have different and very different wavelengths of light,” says Professor Mark Heisler from the University of California, Irvine , who runs the research group, which makes such instruments for the medical industry.
“Different tissues are much more sensitive to the different wavelengths of light than the same tissue is to the same wavelength of light, so in some circumstances you can see a very subtle difference in the distribution of fluorescence molecules between tissues.”
When researchers look for fluorescence in tissue samples from people, for example, they generally use the light that is emitted from fluorescent proteins, or proteins that glow in the light of certain wavelengths of light. The proteins they are looking for, such as those of an embolism or cancer cells, are usually highly fluorescent.
In the new study, for instance, the researchers shone infrared light over samples of white lung tissue from one patient, and blue light on the same sample from another patient on the same day. They measured how the colour changed in response to the two different wavelengths emitted by the two tissues, and found that the fluorescence could be much less than in the lab.
It should be noted that when looking for the fluorescence, fluorescence microscopy requires a microscope with a very large field of view. A very small field of view means that in many cases it is difficult to see the fluorescence; in these situations, using more of the camera’s lens in the microscope could help.
“If you think about what the fluorescence has to do with biology, you are using different wavelengths of light to do the job, so this can provide a better view of what you are looking for,” explains Heisler.
The experiments were done with mice,
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