Who Came Up With Days, Hours, Minutes and Seconds?

Share this & earn $10
Science Plus
Published at : 07 Dec 2020
327483 views
6038
321

Episode 1 of 4

Check us out on iTunes! http://testtube.com/podcast

Please Subscribe! http://testu.be/1FjtHn5

We've all learned it takes 24 hours for the Earth to rotate once on its axis but that isn't the whole story at all. We have come a long way over the course of human civilization.

+ + + + + + + +

Previous Series:

Why The Gemini Space Program Revolutionized Space Travel: http://www.seeker.com/why-the-gemini-space-program-revolutionized-space-travel-1829868984.html

+ + + + + + + +

Sources:

Why Does The Earth Spin?:
http://www.universetoday.com/14491/why-does-the-earth-rotate/

“In a classic episode of this video series, I did the calculations for how fast the Earth is spinning. We know the Earth is rotating, but why? Why is it spinning?"

The First Point of Aries:
https://astronavigationdemystified.com/the-first-point-of-aries/

“In astronomy, we need a celestial coordinate system for fixing the positions of all celestial bodies in the celestial sphere."

How Long Is A Day? How Long Does It Take The Earth To Spin Once On Its Axis?:
https://plus.maths.org/content/how-long-day

“It might seem obvious that the answer to both these questions is 24 hours. But the correct answer is not quite so straight forward. The Earth's axis always points in the same direction relative to the distant stars, at least to a good approximation."

9 Things You May Not Know About the Ancient Sumerians:
http://www.history.com/news/history-lists/9-things-you-may-not-know-about-the-ancient-sumerians

“Sometime around 4000 B.C., ancient Sumerian culture emerged on a sun-scorched floodplain along the Tigris and Euphrates rivers in what is now southern Iraq."

Sumer:
http://www.britannica.com/place/Sumer

“Sumer, site of the earliest known civilization, located in the southernmost part of Mesopotamia between the Tigris and Euphrates rivers, in the area that later became Babylonia and is now southern Iraq from around Baghdad to the Persian Gulf."

Why Are There 24 Hours In A Day?:
http://www.abc.net.au/science/articles/2011/11/15/3364432.htm

“While each country has (in broad terms) historically had distinct measurements for distance, weights etc the method of splitting the day into 24 hours, one hour into 60 mins and one minute into 60 seconds seems to be the only one in use, and indeed to me the only one I know of. "

Keeping Time: Why 60 Minutes?:
http://www.livescience.com/44964-why-60-minutes-in-an-hour.html

“How did we come to divide the hour into 60 minutes and the minute into 60 seconds? These smaller divisions of time have been in practical use for only about 400 years, but they were vital to the advent of modern science."

Why Is A Minute Divided Into 60 Seconds, An Hour Into 60 Minutes, Yet There Are Only 24 Hours In A Day?:
http://www.scientificamerican.com/article/experts-time-division-days-hours-minutes/

“In today's world, the most widely used numeral system is decimal (base 10), a system that probably originated because it made it easy for humans to count using their fingers."

+ + + + + + + +

DNews Plus is built for enthusiastic science fans seeking out comprehensive conversations on the geeky topics they love. Host Trace Dominguez digs beyond the usual scope to deliver details, developments and opinions on advanced topics like AI, string theory and Mars exploration. DNews Plus is also offered as an audio podcast on iTunes.

+ + + + + + + +

Trace Dominguez on Twitter https://twitter.com/TraceDominguez

DNews on Facebook https://facebook.com/discoverynews

DNews on Twitter http://twitter.com/DNews

+ + + + + + + +
Calendarcalendars60 minutes

Northwestern Model 60 Vending Machine Restoration

Northwestern Model 60 Vending Machine Restoration

Top 10 Lishi Tools - Most Commonly Used

Top 10 Lishi Tools - Most Commonly Used

A.I.M.Sなりきりセットを本人がレビューしてみた!

A.I.M.Sなりきりセットを本人がレビューしてみた!

Why Everyone Is Talking About This Giant Ocean Creature

Why Everyone Is Talking About This Giant Ocean Creature

SURVIVE ALL SORTS OF DISASTERS in ROBLOX / NATURAL DISASTER SURVIVAL MINIGAMES

SURVIVE ALL SORTS OF DISASTERS in ROBLOX / NATURAL DISASTER SURVIVAL MINIGAMES

🔥I NEED UR SUPPORT TO REACH HEROIC 🤘 || Free Fire Live In Telugu -@madhupennemgaming

🔥I NEED UR SUPPORT TO REACH HEROIC 🤘 || Free Fire Live In Telugu -@madhupennemgaming

How to use the LOOKUP Function in Excel

How to use the LOOKUP Function in Excel

Link Building: How to Get POWERFUL Backlinks in 2020

Link Building: How to Get POWERFUL Backlinks in 2020

The Tractors: Baby Likes To Rock It (1994)

The Tractors: Baby Likes To Rock It (1994)

Drive smart with courtesy

Drive smart with courtesy

Were the Unabomber’s Predictions About Technology Correct?

Were the Unabomber’s Predictions About Technology Correct?

LP - The One That You Love (Lyrics)

LP - The One That You Love (Lyrics)

Bob the Builder | Switch And Fix | Advertisement

Bob the Builder | Switch And Fix | Advertisement

Daily Bread: Nov 16 - The One Hundred Forty-Four Thousand

Daily Bread: Nov 16 - The One Hundred Forty-Four Thousand

It Ain't Necessarily So

It Ain't Necessarily So

What is Equity in investing? Equity Kya Hota Hai? Simple Explanation in Hindi | Equity Markets

What is Equity in investing? Equity Kya Hota Hai? Simple Explanation in Hindi | Equity Markets

TOP 10 | Stunning HIGH NOTES in The Voice that are out of this world!

TOP 10 | Stunning HIGH NOTES in The Voice that are out of this world!

Amazing Beach Tree Veneer Manufacturing Process ! Extremely Fastest  Large Woodworking Machinery

Amazing Beach Tree Veneer Manufacturing Process ! Extremely Fastest Large Woodworking Machinery

Semesun в гостях у Master'a (Первый Дискордный#2)

Semesun в гостях у Master'a (Первый Дискордный#2)

Week 1 : KEEPING TRACK OF YOUR STATA SESSION

Week 1 : KEEPING TRACK OF YOUR STATA SESSION

Stop Jaw Clicking/Popping TMJ With This Exercise | Fix with Jaw Tracking | A Simple Exercise

Stop Jaw Clicking/Popping TMJ With This Exercise | Fix with Jaw Tracking | A Simple Exercise

TOP 5 CNC MACHINING SOFTWARE | BEST COMPUTER AIDED MANUFACTURING (CAM) PROGRAMS FOR INDUSTRIES 2019

TOP 5 CNC MACHINING SOFTWARE | BEST COMPUTER AIDED MANUFACTURING (CAM) PROGRAMS FOR INDUSTRIES 2019

'Alt-Right' Leader On Liberals: 'Their Whole Life Is Based On Hate'

'Alt-Right' Leader On Liberals: 'Their Whole Life Is Based On Hate'

【ケプトの定時退社 #58】「kept:精鋭5体 vs ザクレイ:keptが選ぶ5体」ケプ定史上最大のハンデマッチ! |  SmashlogTV

【ケプトの定時退社 #58】「kept:精鋭5体 vs ザクレイ:keptが選ぶ5体」ケプ定史上最大のハンデマッチ! | SmashlogTV

Star Trek DS9 - What You Leave Behind - Garak and Bashir last scene

Star Trek DS9 - What You Leave Behind - Garak and Bashir last scene

CC Catch - Cause You Are Young (HD)

CC Catch - Cause You Are Young (HD)

Oxygen Gym , The Best Gym In The World Part1

Oxygen Gym , The Best Gym In The World Part1

Aluminum-free & Natural Deodorants || A Comprehensive Review & Comparison

Aluminum-free & Natural Deodorants || A Comprehensive Review & Comparison

The Secret Behind Coca-Cola Marketing Strategy

The Secret Behind Coca-Cola Marketing Strategy

Darkness Before Harvest Lab Results

Darkness Before Harvest Lab Results

What is Electric Charge and How Electricity Works | Electronics Basics #1

What is Electric Charge and How Electricity Works | Electronics Basics #1

Retail 2020 | 5 Technologies that will change the way you shop

Retail 2020 | 5 Technologies that will change the way you shop

I Won't Back Down

I Won't Back Down

How to Find Buyers in International Market for Export by Dr. Amit Maheshwari

How to Find Buyers in International Market for Export by Dr. Amit Maheshwari

China Is Back To Running Massive Trade Surpluses But SOEs Are Defaulting on AAA Rated Bonds

China Is Back To Running Massive Trade Surpluses But SOEs Are Defaulting on AAA Rated Bonds

Aaj Ka Vichaar: Truth Should Be Said Loudly And Clearly | ABP News

Aaj Ka Vichaar: Truth Should Be Said Loudly And Clearly | ABP News

MAJAH HYPE IN D@NGER BECAUSE OF THIS WHOLE THING....

MAJAH HYPE IN D@NGER BECAUSE OF THIS WHOLE THING....

Don't forget about me meme/ piggy DISTORTED MEMORY  (LAZY!!!)

Don't forget about me meme/ piggy DISTORTED MEMORY (LAZY!!!)

Saa Moya - BRUCE Melodie (Instrumental Prod By ELEMENT) 2020

Saa Moya - BRUCE Melodie (Instrumental Prod By ELEMENT) 2020

Chopping Last Cutting of Hay 2020

Chopping Last Cutting of Hay 2020

CBSE Class 10 Boards Maths In Fig. 2, `Delta AHK` is similar to `Delta ABC`. If `AK = 10 cm, BC ...

CBSE Class 10 Boards Maths In Fig. 2, `Delta AHK` is similar to `Delta ABC`. If `AK = 10 cm, BC ...

Queer Parents & Their Queer Kids Play Truth or Drink | Truth or Drink | Cut

Queer Parents & Their Queer Kids Play Truth or Drink | Truth or Drink | Cut

Joe Biden and Lady Gaga pay surprise visit to students on final leg of 2020 presidential campaign

Joe Biden and Lady Gaga pay surprise visit to students on final leg of 2020 presidential campaign

I Flew Emirates FIRST Class & It Cost £_____ (World’s BEST First Class?)

I Flew Emirates FIRST Class & It Cost £_____ (World’s BEST First Class?)

Things Not To Say To Someone Who Went To Private School

Things Not To Say To Someone Who Went To Private School

The Unlucky Inn

The Unlucky Inn

Tenses - Simple Present ( In Hindi and English)

Tenses - Simple Present ( In Hindi and English)

A Beginner's Web Design Tutorial for 2018 - Part 1 of 2

A Beginner's Web Design Tutorial for 2018 - Part 1 of 2

Email-Worm.Win32.MeltingScreen

Email-Worm.Win32.MeltingScreen