Colors depend on our perception and this can vary from one subject to another. Thus, over time, various methods were born to make the classification objective, to define colors based on coordinates, with standardized light. In the major graphics software there are chromatic coordinates (HEX, RGB, CMYK e HSV) that allow us to better orient ourselves. In the case of red, eg, we can distinguish: magenta, the scarlet, the vermilion, the cinnabar, the red lead, coral, cadmium, the crèmisi, il pompeiano, the purple, the carmine, amaranth, the grenade, it burgundy, the cherry, the terracotta, the Venetian, the Titian, the Valentino, the Ferrari and others.
The story of the Nobel laureate Salvatore Luria, a passionate scientist!
What happens after death, has always been an object of curiosity for man! The different religions, beliefs and traditions, handed down over the millennia, they tried to imagine an unearthly destiny. But on Earth, instead, what remains? Even scientifically speaking, it can be said that there is life after death! The life in question, however, is not ours, but that of a large corpse fauna. Fear, eh? After death, the decomposition process begins immediately, as the cells no longer receive oxygen and other nutrients that allow them to survive. It follows a process called "autolysis": [...]
The first tubes of paint appeared around the 18th century. Before then, the artists independently prepared the colors they needed, studying the materials and perfecting the procedures. In ancient Egypt, the pigments were extracted from minerals such as malachite (verde), the pyrolusite (nero), la dolomite (White), or from lands such as ocher (yellow and red). The pigments were then amalgamated with a binder, such as egg white or gum arabic. The Egyptians didn't just extract what they found in nature, but they came to produce, more than 5000 Years ago, the first known artificial color: the Egyptian blue! [...]
It is a gastrointestinal disorder due to food poisoning. It manifests itself with an increased frequency of bowel movements that lead to three or more evacuations of poorly formed stools per day, generally during a trip abroad, often in a developing country. What are the etiological agents? In more than half of the cases the cause is not investigated because the symptoms disappear before returning home. When, on the other hand, the causative agent is sought, these bacteria are almost always found: Enterotoxic Escherichia coli is the most common bacterium responsible for traveler's diarrhea whose infection occurs [...]
Someone says that "What does not kill strengthens"! Well, this ancient proverb can be an adequate opening to tell the relatively recent partnership between art and microbiology. Robert Ryman, Twin (1966) https://www.wikiart.org/en/robert-ryman/twin-1966 Malgrado si tenda quasi sempre ad associare i batteri ad un pericolo, in fact many bacterial species not only do not kill, but they are even useful for "fortifying" our cultural heritage. È vero che alcune costruzioni e opere d’arte, of various kinds and invoices, they can be negatively affected by various microbial activities; however it is equally true, than from those same microbial activities, altre opere di materiale diverso [...]
With the arrival of spring, nature awakens and takes on color, but often the only colors we would like to see are those of our pajamas! Maybe you too, like many, in this period you can not get into the first gear and you do not know who to blame! Well, the reasons are varied and are also linked to environmental factors, such as the increase in hours of light and the rise in temperature, which induce energetically wasteful responses of our body. One of the architects of the lack of regularity in the sleep / wake cycle in the first days of summer, is the work done by the epiphysis and melatonin. https://it.wikipedia.org/wiki/Ghiandola_pineale#/media/File:Pineal_gland.png L’epifisi è [...]
It was the 24 March of 1882 and Robert Koch announced to the scientific community the discovery of the bacterium responsible for tuberculosis (TBC) called Mycobacterium Tubercolosis, also known as Koch's Bacillus. It was a sensational discovery that marked the history of this disease, feared since ancient times, which reached epidemic proportions in the eighteenth and nineteenth centuries. The 24 World Tuberculosis Day is celebrated each year in March, not only to remember Koch's important discovery, but to promote the knowledge of this disease which does not belong to the past! Even today, tuberculosis is among the top ten causes of death in [...]
How many of us have complained about their adipose tissue over the course of their lives? Denigrated and disguised as best you can, actually this fabric, commonly called "flab" or "fat", it is full of many surprises! Gordos campesinos... guerrillas in Botero's eyes (eyes quite slanted) (at Sol Robayo, https://www.flickr.com/photos/solrobayo/4460131669) Adipose tissue is the largest energy reserve in our body. In addition to this, other functions such as the following are well known: Support and protection (constituting a sort of "scaffolding" for many organs and acting as a "shock absorber" against shocks); thermogenesis (regolando la temperatura corporea [...]