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Fluorescein is an orange powder. But when added to water, it forms a bright green solution, which glows under UV light.Despite its name, it contains only carbon, hydrogen and oxygen, and can be safely used as a dye or marker. It is also used in medicine,

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Blog: A Collection of Curiosities




tags: chemistry, colours, neon, weird, water, fluorescein, chemicals, facts, art, enviornment, *

original: http://mister-wunderkammer.tumblr.com/post/109505316294

report

sixpenceee: Here are some interesting brain phenomenons you can try out. Here’s my masterpost of all things related to the human mind and brain. 

sixpenceee: Here are some interesting brain phenomenons you can try out. Here’s my masterpost of all things related to the human mind and brain. 

The Worst Thing About Australia Is The Silence

The Worst Thing About Australia Is The Silence

mandaladana: Analemma. The sun’s position in the sky, photographed from the same location at the same time of day throughout a year, forms an analemma. This shows the sun’s apparent swinging from its northernmost position, at the analemma’s uppermost

mandaladana: Analemma. The sun’s position in the sky, photographed from the same location at the same time of day throughout a year, forms an analemma. This shows the sun’s apparent swinging from its northernmost position, at the analemma’s uppermost

thegreenwolf: People often think of fire as a destructive force, and it can be. But fire also rejuvenates the land. Many grasses have evolved root systems that survive fires so they can be renewed, and some trees and other plants have seeds that only

thegreenwolf: People often think of fire as a destructive force, and it can be. But fire also rejuvenates the land. Many grasses have evolved root systems that survive fires so they can be renewed, and some trees and other plants have seeds that only

I need to believe in ghosts

I need to believe in ghosts

https://64.media.tumblr.com/864ab9675eb35918a7190e8e29fb1ccd/tumblr_n2t08zapzK1r03m0qo1_500.jpg

https://64.media.tumblr.com/864ab9675eb35918a7190e8e29fb1ccd/tumblr_n2t08zapzK1r03m0qo1_500.jpg

sixpenceee: HOW THE MOKIN CHILDREN ARE ABLE TO SEE WITH AMAZING CLARITY UNDERWATER The Mokin are a group in Thailand that are nomadic and have a sea-based culture.  In the sea there is less light, so usually one’s iris will dilate. But the Mokin have

sixpenceee: HOW THE MOKIN CHILDREN ARE ABLE TO SEE WITH AMAZING CLARITY UNDERWATER The Mokin are a group in Thailand that are nomadic and have a sea-based culture.  In the sea there is less light, so usually one’s iris will dilate. But the Mokin have

benmaurodesign: Odontoceti alien from 2014.

benmaurodesign: Odontoceti alien from 2014.

biomedicalephemera: biomedicalephemera: X-Ray Dermatitis Not to say that people didn’t realize that radiation could be dangerous, it just wasn’t widely thought to be all that dangerous, and it wasn’t really publicized how easily it could cause

biomedicalephemera: biomedicalephemera: X-Ray Dermatitis Not to say that people didn’t realize that radiation could be dangerous, it just wasn’t widely thought to be all that dangerous, and it wasn’t really publicized how easily it could cause

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