Petnica Science Center - Wikipedia
https://en.wikipedia.org/wiki/Petnica_Science_Center
Petnica Science Center (PSC) (Serbian, Cyrillic: "Истраживачка станица Петница"; Serbian, Latin: "Istraživačka stanica Petnica") is an independent and nonprofit organization for extracurricular, formal and informal, science education located near Valjevo, Serbia. PSC has organized more than 3000 programs (seminars, workshops, research camps, conferences, etc.) since its opening, for nearly 50,000 students and science teachers in 15 disciplines of science, t…
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