Manuel Castells - A obsolescência da educação
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Parece que nunca ninguém me percebe sobre este assunto, mas acho que este pequeno vídeo é bastante claro!
24 maio, 2014
12 maio, 2014
Looking At Tears Under A Microscope Reveals A Shocking Fact.
Um post muito interessante e surpreendente.
Aconselho vivamente a consultar aqui.
Tem muito mais fotografias.
One day Rose-Lynn Fisher wondered if her tears of grief would look different compared to her tears of joy, so she began to explore them up close under a microscope.
She studied 100 different tears and found that basal tears (the ones that our body produces to lubricate our eyes) are drastically different from the tears that happen when we are chopping onions. The tears that come about from hard laughter aren’t even close to the tears of sorrow. Like a drop of ocean water each tiny tear drop carries a microcosm of human experience. Her project is called The Topography of Tears.
Joseph Stromberg of the Smithsonian’s Collage of Arts and Sciences explained that there are three major types of tears: basal, reflex, and psychic (triggered by emotions). All tears contain organic substances including oils, antibodies, and enzymes and are suspended in salt water. Different types of tears have distinct molecules. Emotional tears have protein-based hormones including the neurotransmitter leucine enkephalin, which is a natural painkiller that is released when we are stressed. Plus, the tears seen under the microscope are crystallized salt and can lead to different shapes and forms. So even psychic tears with the same chemical composition can look very different. Fisher said, “There are so many variables—there’s the chemistry, the viscosity, the setting, the evaporation rate and the settings of the microscope.”
Credit: Rose-Lynn Fisher
Enquanto lia o post só me lembrava deste poema de António Gedeão (Rómulo de Carvalho) cantado por Adriano Correia de Oliveira!
Aconselho vivamente a consultar aqui.
Tem muito mais fotografias.
One day Rose-Lynn Fisher wondered if her tears of grief would look different compared to her tears of joy, so she began to explore them up close under a microscope.
She studied 100 different tears and found that basal tears (the ones that our body produces to lubricate our eyes) are drastically different from the tears that happen when we are chopping onions. The tears that come about from hard laughter aren’t even close to the tears of sorrow. Like a drop of ocean water each tiny tear drop carries a microcosm of human experience. Her project is called The Topography of Tears.
Tears from laughing until crying
Tears of change
Joseph Stromberg of the Smithsonian’s Collage of Arts and Sciences explained that there are three major types of tears: basal, reflex, and psychic (triggered by emotions). All tears contain organic substances including oils, antibodies, and enzymes and are suspended in salt water. Different types of tears have distinct molecules. Emotional tears have protein-based hormones including the neurotransmitter leucine enkephalin, which is a natural painkiller that is released when we are stressed. Plus, the tears seen under the microscope are crystallized salt and can lead to different shapes and forms. So even psychic tears with the same chemical composition can look very different. Fisher said, “There are so many variables—there’s the chemistry, the viscosity, the setting, the evaporation rate and the settings of the microscope.”
Credit: Rose-Lynn Fisher
Enquanto lia o post só me lembrava deste poema de António Gedeão (Rómulo de Carvalho) cantado por Adriano Correia de Oliveira!
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