28.01.2015
Scientists have finally unravelled why scorpions glow bright green under ultraviolet light. The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline. An ultraviolet (UV) ray detector is a device which uses photoelectric cells to detect the presence of UV rays and the amounts in which they can be found.
UV rays are emitted primarily by the sun, but also by certain light emitting and electronic devices, such as black lights and tanning beds. The use of a UV detector may also come in handy with consumers for finding out how much UV radiation is entering their homes and buildings through windows and certain electronic devices. Most times the UV detector will need to be connected to a printer or computer in order to view readings.
One of the enduring commonalities across most human societies is the belief that our eyes are a window into the immutable truth of the universe. The image above is Komar’s simulation of what UV light looks like to him on surfaces where the rest of us just see black. Is it just me or does anyone else have one eye that seems to have a different “hue setting” than the other? Indeed, will it really still be considered a “screen” when it is finally capable of equalling (or exceeding) the capability of the human eye?
I always dreamed of the day when humans can see beyond the visible spectrum(like Geordi’s visor in Star Trek). When you have cataracts surgery they remove your natural lenses, which filter out UV light. That would make everything in the field of view compete with a bright source of like (the lens).
Maxime, sorry I missed this, but they evaluated his vision using a machine that output light in a single 10nm wavelength and testing to see if he could see the beam. If I shine a 390nm wavelength light on an object, and you see the object light up, you’re seeing the light. More annoyingly are some fabrics which must contain some type of dyes that look really different colours to my two eyes. Hehe, if you squint with that eye, to make a point of light bleary, you probably can make it refract a little and tell you what type of lamp is producing a light. Oh but the whitish tips on the flower are not so extreme, the glow appears almost like a halo over the original yellow color of the petals. Age spots - also called liver spots and solar lentigines - vary in size and usually appear on the areas most exposed to the sun. Though the marks are very common in adults older than age 40, they can affect younger people too. Some might be shocked at the sight of so many undetected blemishes, but they are quite common, as the series shows.Ms Phillips was born and raised in suburban Detroit. In April 2013, an eighteenth-century portrait of William Shakespeare believed to be from the collection of Royal Academician Richard Cosway (1742–1821) made its way from the Folger Shakespeare Library to the Page Conservation studios for conservation treatment. A preparatory layer of white gesso (a smooth chalk-based coating) lies beneath the portrait and extends to the edges of the panel. Darkened areas of earlier retouching are visible beneath the discolored varnish in the background of the painting. In this photo, the degraded upper synthetic varnish has been removed in an area on the left side of Shakespeare’s face. In the image above, the artist’s detailed brushwork on the face is revealed during thinning of the portrait’s discolored natural resin varnish. Above is a fuller view of the portrait after thinning the discolored varnish and removing the earlier background repaint. Using a magnifying visor, the conservator inpaints the abraded background of the Cosway Portrait with easily reversible synthetic conservation paints.
After treatment, the artist’s delicate brushwork in both the portrait and the background is newly visible. Guest Author is the byline used for guests at The Collation, including Folger fellows, program participants, and readers who wish to share their research on collection items.


Enter your email address to follow this blog and receive notifications of new posts by email. I adopted a dog about 2 months ago, he is a miniature pinscher mix (possibly mixed with beadle or dachshund). I really want to figure out his problem as I have spent about $500 at the vet and she doesn't even know what his problem is. Ive seen something similar to this before in a cat we at first misdiagnosed it because it does not appear as ringworm generally does it was black and shiny on the tips of the ears and it ended up being ringworm. These are the ingredients for the Nutro Natural Balance dog food; It has lamb meal, chicken fat and fish oil in it. Ahhh, thank you for the clarification luv mi pets That is frustrating that they advertise the foods as LID even though it isn't truly one! The ability is widely known - but biologists have puzzled over why the creatures might have evolved it. They are generally used to test lighting fixtures and electronics to discover the amounts of UV emitted before being sold to consumers. When used in correct doses, UV rays can have health benefits like increased vitamin D production and treatment for some skin conditions.
This is a good idea for anyone attempting to use items that are meant for UV ray production to ensure that they are not getting too much too quickly. Some detectors may also be useful at detecting the presence of UV radiation above a certain level, while others can give exact readings on the amounts of UV radiation being emitted by particular items. Eyewitnesses are accorded special status in trials, despite repeated studies demonstrating how fallible such on-the-scene reports can be.
If I’m looking at examples of IPS vs TN and standard vs wide gamut images using a TN display with standard gamut, then what am I really seeing? I first noticed it when I went to a club and all the UV lights were glowing light blue with my right eye and were normal black with my old left. I thought I was the only one and nobody believes me whenever I talk about it but the “glow” that they show in these pictures looks just like what I see!
To minimize skin damage, doctors recommend avoiding direct sunlight and using sunscreen.While Ms Phillips' images focus on flaws, she titled the picture project Ultraviolet Beauties. Since graduating, she has focused on her own work and has collaborated on numerous projects.
When it comes to conserving paintings, though, we turn to outside experts like Dawn Rogala of Page Conservation, Inc.
The portrait is executed in oils, thinly applied with overlapping fine brush strokes and minimal impasto (paint applied thickly enough to stand up in relief). The two small light areas on the left of the portrait are test cleanings that indicate the level of discoloration in the natural resin varnish. The heavy coat of natural resin varnish visibly fluoresces in response to ultraviolet radiation. Once the uppermost layer of materials is removed, the next layer may be accurately assessed and decisions made regarding how further cleaning should proceed.
The very discolored underlying natural resin varnish remains and will be thinned in a balanced manner. This older repaint no longer matched the background color once the discolored varnish was thinned. During this maintenance period, the site has been upgraded to the newest versions to enhance the user experience. Scheduled for ultrasound on Monday and she said to put him on between 100-400 IU of Vitamin A daily - she did say that his skin problem is not the main nasty skin issue seen in the liver enzymes though. Biologist Douglas Gaffin of the University of Oklahoma investigated the 'fluorescence' and found that the creatures can 'sense' light using their tails.The creatures may to have evolved the ability to help them scuttle away under rocks. UV detector devices can also be used by consumers to find out how much UV radiation is in their homes, businesses, and other locations and sometimes where the rays are coming from. In higher amounts, UV radiation can cause serious damage to skin’s DNA and may result in skin cancer. Many industrial companies must also frequently test their facilities for UV rays to ensure the health of their employees.


Each model has a different level of sensitivity and can detect levels below a specific point and above. The idea that sight conveys reality is enshrined in everything from dusty myths and sacred texts to modern-day cop shows.
I checked in the manufacturers website and my lens transmits some light below 400nm down to 375nm. She is the co-founder of the online exhibition site Women in Photography and a member of the international photography group Piece of Cake.
Viewed from the front, the panel has a slight convex curve, and its fine diagonal grain runs from the top left to the bottom right of the composition.
Close examination of the painting revealed surface abrasions in the background paint, most likely from previous restoration cleaning.
This careful progression may reveal previously unknown information, such as retouching obscured by heavy varnish.
This final layer preserves the saturated inpainting colors and imparts a satin sheen that enhances legibility of the portrait.
Folger purchased the Cosway Portrait at the Augustin Daly sale of 19 March 1900, making it the first Shakespeare portrait they ever acquired.
Please note we are still working on the site, so its appearance may change from time to time over the next few days.
For this reason, a UV detector should be used for any product meant to treat patients with low levels of ultraviolet rays to ensure that they do not receive an overdose. The level at which many can detect UV rays is at or just below that which would be harmful for humans with prolonged or repeated exposure. Most research suggests that it has more to do with your brains interpretation of the optical input or could even be caused by minor damage on one of the optical nerves. Reproduction in whole or in part in any form or medium without express written permission of Ziff Davis, LLC. She has received numerous awards and is in several private collections around the world.She currently lives and works in Brooklyn, New York. Cleaning tests indicated that there was an upper layer of synthetic varnish over a yellowed natural resin varnish. In the Cosway Portrait, a few areas of retouching are visible on Shakespeare’s chin, but the painting’s thick varnish layer fluoresces so brightly in UV that it is difficult to identify any retouching beneath the varnish. A thin layer of new, non-yellowing varnish was applied to isolate new inpainting from the original and to saturate original colors to aid accurate inpainting. Even the background retouching that is visible under normal illumination is not clear under UV.
Small dots of non-yellowing conservation colors carefully placed within areas of paint loss (not over original material) restore the background’s coherence. While friends and family were initially skeptical of such claims, Komar secured the help of an HP engineer with access to a Monochromator; a device capable of projecting light in 10nm wavelength increments. In the picture above, we would see the upper flower — a bird, we think, sees the lower.
Anecdotal evidence indicates that he’s not the only Crystalens patient to see ultraviolet wavelengths following the procedure.
I have been to my vet twice in addition to his initial check-up and the vet is unsure what his problem is and has already performed a swab (which was negative) and a skin scraping on his back leg for mites (which was negative). Women who carry a copy of the OPN1MW gene on one X chromosome and OPNMW2 on the other may possess four separate types of cones rather than the usual three. However, he was doing well (no diarrhea) on the Natural Choice which has chicken fat in it.



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