UM Photo Gallery
[vc_row row_type="row" use_row_as_full_screen_section="no" type="grid" angled_section="no" text_align="left" background_image_as_pattern="without_pattern" css_animation=""][vc_column width="1/2"][vc_single_image image="18379" img_size="large" add_caption="yes" qode_css_animation="" qode_hover_animation="zoom_in"][/vc_column][vc_column width="1/2"][vc_column_text] Round and Round Why do we have leap seconds if "time is more accurately measured than any other physical entity?" Why do we add extra seconds some years and not others? Is...