<p>&Tau;&omicron; &sigma;&epsilon;&nu;ά&rho;&iota;&omicron; &alpha;&nu;&alpha;&phi;έ&rho;&epsilon;&tau;&alpha;&iota; &sigma;&tau;&eta;&nu; &pi;&alpha;&rho;&alpha;&gamma;&omega;&gamma;ή &tau;&omicron;&upsilon; ή&chi;&omicron;&upsilon; &kappa;&alpha;&iota; &sigma;&upsilon;&gamma;&kappa;&epsilon;&kappa;&rho;&iota;&mu;έ&nu;&alpha; &sigma;&tau;&eta;&nu; &tau;&alpha;&lambda;ά&nu;&tau;&omega;&sigma;&eta; &tau;&eta;&sigmaf; &eta;&chi;&eta;&tau;&iota;&kappa;ή&sigmaf; &pi;&eta;&gamma;ή&sigmaf; (<a href="http://ebooks.edu.gr/ebooks/v/html/8547/2190/Fysika_E-Dimotikou_html-empl/index_8.html">http://ebooks.edu.gr/ebooks/v/html/8547/2190/Fysika_E-Dimotikou_html-empl/index_8.html</a>).</p> <p>&Tau;&omicron; &sigma;&epsilon;&nu;ά&rho;&iota;&omicron; &alpha;&kappa;&omicron;&lambda;&omicron;&upsilon;&theta;&epsilon;ί &tau;&eta;&nu; &gamma;&nu;&omega;&sigma;&tau;&iota;&kappa;ή &pi;&alpha;&iota;&delta;&alpha;&gamma;&omega;&gamma;&iota;&kappa;ή &pi;&rho;&omicron;&sigma;έ&gamma;&gamma;&iota;&sigma;&eta; &kappa;&alpha;&iota; &tau;&omicron; &mu;&omicron;&nu;&tau;έ&lambda;&omicron; &epsilon;ί&nu;&alpha;&iota; &eta; &delta;&iota;&epsilon;&rho;&epsilon;&upsilon;&nu;&eta;&tau;&iota;&kappa;ή &mu;ά&theta;&eta;&sigma;&eta;. &Tau;&omicron; &theta;έ&mu;&alpha; &mu;&epsilon;&lambda;&epsilon;&tau;ά&tau;&alpha;&iota; &mu;έ&sigma;&omega; &epsilon;&iota;&kappa;&omicron;&nu;&iota;&kappa;&omicron;ύ &pi;&epsilon;&iota;&rho;ά&mu;&alpha;&tau;&omicron;&sigmaf;, &mu;&iota;&alpha;&sigmaf; &omicron;&pi;&tau;&iota;&kappa;&omicron;&pi;&omicron;ί&eta;&sigma;&eta;&sigmaf; &tau;&eta;&sigmaf; &kappa;&upsilon;&mu;&alpha;&tau;&omicron;&mu;&omicron;&rho;&phi;ή&sigmaf; &epsilon;&nu;ό&sigmaf; &alpha;&pi;&lambda;&omicron;ύ ή&chi;&omicron;&upsilon; &kappa;&alpha;&iota; &mu;έ&sigma;&omega; &mu;&iota;&alpha;&sigmaf; &alpha;&nu;&omicron;&iota;&chi;&tau;ή&sigmaf; &delta;&rho;&alpha;&sigma;&tau;&eta;&rho;&iota;ό&tau;&eta;&tau;&alpha;&sigmaf; &gamma;&iota;&alpha; &tau;&omicron;&nu; ή&chi;&omicron; &pi;&omicron;&upsilon; &pi;&alpha;&rho;ά&gamma;&omicron;&upsilon;&nu; &delta;&iota;&alpha;&phi;&omicron;&rho;&epsilon;&tau;&iota;&kappa;ά &upsilon;&lambda;&iota;&kappa;ά. &Gamma;&iota;&alpha; &tau;&omicron; &sigma;&kappa;&omicron;&pi;ό &alpha;&upsilon;&tau;ό &alpha;&xi;&iota;&omicron;&pi;&omicron;&iota;&epsilon;ί&tau;&alpha;&iota; &tau;&omicron; &psi;&eta;&phi;&iota;&alpha;&kappa;ό &mu;&alpha;&theta;&eta;&sigma;&iota;&alpha;&kappa;ό &alpha;&nu;&tau;&iota;&kappa;&epsilon;ί&mu;&epsilon;&nu;&omicron; &quot;&tau;&omicron; &eta;&chi;&eta;&tau;&iota;&kappa;ό &kappa;ύ&mu;&alpha;&quot; (<a href="http://photodentro.edu.gr/lor/r/8521/11356?locale=el">http://photodentro.edu.gr/lor/r/8521/11356?locale=el</a>)&pi;&omicron;&upsilon; &alpha;&pi;&omicron;&tau;&epsilon;&lambda;&epsilon;ί &mu;&iota;&alpha; &alpha;&kappa;&rho;&iota;&beta;ή&sigmaf; &omicron;&pi;&tau;&iota;&kappa;&omicron;&pi;&omicron;ί&eta;&sigma;&eta; &kappa;&alpha;&iota; &tau;&omicron; &psi;&eta;&phi;&iota;&alpha;&kappa;ό &mu;&alpha;&theta;&eta;&sigma;&iota;&alpha;&kappa;ό &alpha;&nu;&tau;&iota;&kappa;&epsilon;ί&mu;&epsilon;&nu;&omicron; &quot;&Tau;&alpha; &mu;&omicron;&upsilon;&sigma;&iota;&kappa;ά ό&rho;&gamma;&alpha;&nu;&alpha; &kappa;&alpha;&iota; &omicron;&iota; ή&chi;&omicron;&iota; &tau;&omicron;&upsilon;&sigmaf;&quot;(<a href="http://photodentro.edu.gr/lor/r/8521/7997?locale=el">http://photodentro.edu.gr/lor/r/8521/7997?locale=el</a>).&nbsp;</p>