Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here:
A brief history of time…
Don’t miss our next video! SUBSCRIBE! ►►
↓↓↓ More info and sources below ↓↓↓
How did we come up with our system of telling time? Why do we divide the day into 24 hours of 60 minutes each, and put 60 seconds in each minute? Where does the definition of a second come from? And who decides what clock shows the correct time? There’s clearly a lot of questions when it comes to time.
READ MORE:
“Galileo’s Pendulum” - Roger Newton
“Revolution in Time” - David Landes
-----------
FOLLOW US:
Merch:
Facebook:
Twitter: @okaytobesmart @DrJoeHanson
Tumblr:
Instagram: @DrJoeHanson
-----------
It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director:
21 view
112
28
2 weeks ago 00:02:43 1
Yearning Kru - Multipass
1 month ago 00:01:17 1
Playing the Mulatar with a double Ebow
1 month ago 00:06:56 1
AUC3I - Daily Briefing 10-28-2024 On the WAR in Ukraine
1 month ago 00:08:18 1
Горняк под контролем ВС РФ | Карта боевых действий на 28 октября 2024 года.
1 month ago 00:18:16 1
WATCH the SECRET why Trump LEAKED Judge Cannon DEAL
1 month ago 00:28:30 1
Kamala Harris Rally Live | Kamala Speaks On Yahya Sinwar’s Death Live | Kamala Wisconsin Campaign
1 month ago 00:04:16 1
GODS ft. NewJeans (뉴진스) (Official Music Video) | Worlds 2023 Anthem - League of Legends
1 month ago 00:44:19 1
Israel Launches Limited Strikes on Iran
1 month ago 00:00:53 1
Disk drive size comparison #retro #computerhardware
1 month ago 00:03:20 2
[4K, 60fps, colorized] . Only existent footage.
1 month ago 00:23:26 1
100 AVIONS ISRAÉLIENS CONTRE L’IRAN
1 month ago 00:14:36 1
Amtrak Northeast Regional: NYC to New Haven Train Travel Adventure!
1 month ago 00:11:57 1
Harris looks for boost from Beyoncé, Trump slams Harris on immigration | Election day countdown
1 month ago 00:08:15 1
AUC3I - Daily Briefing 10-27-2024 On the WAR in Ukraine
1 month ago 00:39:03 5
Теория Струн - БРЕД? Кризис в науке?
1 month ago 00:03:14 1
President Biden reacts to Israel’s retaliatory attack on Iran
1 month ago 00:08:03 18
【LAST NINJA】#04 Dojo House Tour | Ninja weapon&Cursed object
1 month ago 00:05:31 1
A brief history of goths - Dan Adams
1 month ago 00:37:40 1
40 minutes of top latest news. Breaking news. Hurricane,flood. Usa,Europe,Russia . Trump,Musk,putin
1 month ago 00:02:34 1
Hackers (1995) | Uniting Hackers | MGM Studios
1 month ago 00:09:40 1
HACKERS | Just the Hacking Scenes | MGM Studios
1 month ago 00:30:10 1
LE MUR DU BRICS — Le briefing avec Slobodan Despot
1 month ago 00:18:54 1
NO WEAPONS TO UKRAINE, DUDA IN SOUTH KOREA. ISRAELI STRIKE ON IRAN (IN BRIEF).
1 month ago 00:44:22 1
How US is covering up Israel’s deliberate starvation of Gaza, with Laila Al-Arian