Solar Power Warning: Attempt to read property "ID" on null in /home/frost/public_html/wp-content/themes/frost-science/content-single.php on line 21 August 13, 2018 /home/frost/public_html/wp-content/themes/frost-science/content-single.php on line 30 https://www.frostscience.org/fun_fact/sun-spot/">By Sierra Sarkis, The photovoltaic effect was first discovered in 1839 by Alexandre Edmond Becquerel.