div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=eee-2020-a-leonardo-da-vinci-catapult-academy-uooelkrts-catapultshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: 주아카데미과학 2020 · • Leonardo da Vinci Catapult ACADEMY UOOELKrTS Catapults originated in ancient times as weapons used in siege warfare designed to throw rough and loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer2022052012602866c24d2d2449e47e6b35html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=eee-2020-a-leonardo-da-vinci-catapult-academy-uooelkrts-catapultshtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: 주아카데미과학 2020 · • Leonardo da Vinci Catapult ACADEMY UOOELKrTS Catapults originated in ancient times as weapons used in siege warfare designed to throw rough and loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer2022052012602866c24d2d2449e47e6b35html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=eee-2020-a-leonardo-da-vinci-catapult-academy-uooelkrts-catapultshtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: 주아카데미과학 2020 · • Leonardo da Vinci Catapult ACADEMY UOOELKrTS Catapults originated in ancient times as weapons used in siege warfare designed to throw rough and loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer2022052012602866c24d2d2449e47e6b35html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=eee-2020-a-leonardo-da-vinci-catapult-academy-uooelkrts-catapultshtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: 주아카데미과학 2020 · • Leonardo da Vinci Catapult ACADEMY UOOELKrTS Catapults originated in ancient times as weapons used in siege warfare designed to throw rough and loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer2022052012602866c24d2d2449e47e6b35html5thumbnails4jpg width=140 height=200 divdiv