free@rss.ponder.catMB to Science Streams@rss.ponder.catEnglish · 30 days agoLet's Climb a Ladder to Space – Will We Float or Fall? #shortswww.youtube.comexternal-linkmessage-square0fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-linkLet's Climb a Ladder to Space – Will We Float or Fall? #shortswww.youtube.comfree@rss.ponder.catMB to Science Streams@rss.ponder.catEnglish · 30 days agomessage-square0fedilink