<p>&Tau;&omicron; &sigma;&epsilon;&nu;ά&rho;&iota;&omicron; &alpha;&nu;&alpha;&phi;έ&rho;&epsilon;&tau;&alpha;&iota; &sigma;&tau;&eta;&nu; &theta;&epsilon;&rho;&mu;&omicron;&kappa;&rho;&alpha;&sigma;ί&alpha; &kappa;&alpha;&iota; &tau;&eta;&nu; &theta;&epsilon;&rho;&mu;ό&tau;&eta;&tau;&alpha;. &Sigma;&upsilon;&gamma;&kappa;&epsilon;&kappa;&rho;&iota;&mu;έ&nu;&alpha; &alpha;&nu;&alpha;&phi;έ&rho;&epsilon;&tau;&alpha;&iota; &sigma;&tau;&eta;&nu; &sigma;&chi;έ&sigma;&eta; &tau;&eta;&sigmaf; &theta;&epsilon;&rho;&mu;&omicron;&kappa;&rho;&alpha;&sigma;ί&alpha;&sigmaf; &kappa;&alpha;&iota; &tau;&eta;&sigmaf; &theta;&epsilon;&rho;&mu;ό&tau;&eta;&tau;&alpha;&sigmaf;, &sigma;&tau;&eta;&nu; &delta;&iota;&alpha;&phi;&omicron;&rho;ά &tau;&omicron;&upsilon;&sigmaf; &kappa;&alpha;&iota; &sigma;&tau;&eta;&nu; &kappa;&alpha;&tau;ά&lambda;&lambda;&eta;&lambda;&eta; &chi;&rho;ή&sigma;&eta; &kappa;&alpha;&iota; &sigma;&eta;&mu;&alpha;&sigma;ί&alpha; &tau;&omicron;&upsilon; &theta;&epsilon;&rho;&mu;&omicron;&mu;έ&tau;&rho;&omicron;&upsilon; <a href="http://ebooks.edu.gr/ebooks/v/html/8547/2190/Fysika_E-Dimotikou_html-empl/index_5.html">&Theta;&epsilon;&rho;&mu;ό&tau;&eta;&tau;&alpha; (ebooks.edu.gr)</a>.</p> <p>&Eta; &pi;&alpha;&iota;&delta;&alpha;&gamma;&omega;&gamma;&iota;&kappa;ή &pi;&rho;&omicron;&sigma;έ&gamma;&gamma;&iota;&sigma;&eta; &epsilon;ί&nu;&alpha;&iota; &eta; &gamma;&nu;&omega;&sigma;&tau;&iota;&kappa;ή &kappa;&alpha;&iota; &tau;&omicron; &delta;&iota;&delta;&alpha;&kappa;&tau;&iota;&kappa;ό &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;&nu;ό&sigmaf; &epsilon;&iota;&kappa;&omicron;&nu;&iota;&kappa;&omicron;ύ &pi;&epsilon;&iota;&rho;ά&mu;&alpha;&tau;&omicron;&sigmaf;. &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; &lsquo;&rsquo;&Mu;έ&tau;&rho;&eta;&sigma;&eta; &tau;&eta;&sigmaf; &theta;&epsilon;&rho;&mu;&omicron;&kappa;&rho;&alpha;&sigma;ί&alpha;&sigmaf;&rsquo;&rsquo; <a href="https://photodentro.edu.gr/v/item/ds/8521/3589">&Phi;&omega;&tau;ό&delta;&epsilon;&nu;&tau;&rho;&omicron; - &Pi;&rho;&omicron;&beta;&omicron;&lambda;ή &alpha;&nu;&tau;&iota;&kappa;&epsilon;&iota;&mu;έ&nu;&omicron;&upsilon; (photodentro.edu.gr)</a>, &pi;&omicron;&upsilon; &alpha;&pi;&omicron;&tau;&epsilon;&lambda;&epsilon;ί &delta;&upsilon;&nu;&alpha;&mu;&iota;&kappa;ή &pi;&rho;&omicron;&sigma;&omicron;&mu;&omicron;ί&omega;&sigma;&eta;.</p>