How small are we in the scale of the universe? - Alex Hofeldt

TED-Ed

• Episode: How small are we in the scale of the universe? - Alex Hofeldt
• Website: TED-Ed
• Feed URL: https://www.youtube.com/feeds/videos.xml?channel_id=UCsooa4yRKGN_zEE8iknghZA
• Published: 2017-02-13 17:05