<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0370-3908</journal-id>
<journal-title><![CDATA[Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. acad. colomb. cienc. exact. fis. nat.]]></abbrev-journal-title>
<issn>0370-3908</issn>
<publisher>
<publisher-name><![CDATA[Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0370-39082021000200405</article-id>
<article-id pub-id-type="doi">10.18257/raccefyn.1228</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[La verdad es hija del tiempo]]></article-title>
<article-title xml:lang="en"><![CDATA[Truth is the daughter of time]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Sánchez]]></surname>
<given-names><![CDATA[Horacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Grupo de Investigación PAAS ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>45</volume>
<numero>175</numero>
<fpage>405</fpage>
<lpage>414</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0370-39082021000200405&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0370-39082021000200405&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0370-39082021000200405&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las descargas eléctricas atmosféricas que se generan entre las nubes y la ionosfera son fenómenos electromagnéticos que se vienen estudiando sistemáticamente a nivel mundial hace muy poco tiempo, cerca de 30 años. Su interés radica en las radiaciones de muy alta frecuencia (rayos gamma) que son muy diferentes a los rayos que hasta ahora se han estudiado en el rango de las radiofrecuencias. En este artículo se presentan los fenómenos denominados destellos de rayos gamma terrestres (Terrestrial Gamma-ray Flash, TGF) y eventos luminosos terrestres (transient luminous events, TLE), y se analiza el papel de los estudios que lleva a cabo en Colombia el grupo PAAS-UN y los beneficios que esta rigurosa y sistemática investigación representan para el futuro del conocimiento científico de los rayos en el país.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The atmospheric electrical discharges occurring between the clouds and the ionosphere are electromagnetic phenomena whose study worldwide started very recently, about 30 years ago. Its interest lies in the remarkably high-frequency radiation (Gamma- rays) that is very different from the lightning studied so far in the radio frequency range. This article presents the phenomena known as Terrestrial Gamma-ray Flashes (TGF) and Terrestrial Luminous Events (TLE) and the role of the scientific studies carried out by the PAAS-UN group in Colombia, as well as the benefits that this rigorous and systematic research will bring in the future as a contribution to the scientific knowledge of lightning in the country.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Descargas eléctricas atmosféricas]]></kwd>
<kwd lng="es"><![CDATA[Rayos gamma]]></kwd>
<kwd lng="es"><![CDATA[Zona tropical]]></kwd>
<kwd lng="en"><![CDATA[Lightning]]></kwd>
<kwd lng="en"><![CDATA[Gamma Rays]]></kwd>
<kwd lng="en"><![CDATA[Tropical Zone]]></kwd>
</kwd-group>
</article-meta>
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