Uploaded June 2016 | Updated September 2026, 1 week ago
Episode 3 of 4
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Please Subscribe! bit.ly/28iQhYC
So a month is 30 days right? Except for the ones that have 31 days and then the one that has 28 but then sometimes that has 29 days. Yeah it’s confusing so let’s break it down.
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Previous Episode:
How Drunk People Invented The Weekend: seeker.com/how-drunk-people-invented-the-weekend-1844934912.html
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Sources:
The Sidereal And Synodic Months:
sumanasinc.com/webcontent/animations/content/sidereal.html
“The sidereal month is the time the Moon takes to complete one full revolution around the Earth with respect to the background stars."
Lunar Month:
universetoday.com/20053/lunar-month
“A lunar month is the amount of time it takes for the Moon to pass through each of its phases (new moon, half, full moon), and then return back to its original position. It takes 29 days, 12 hours, 44 minutes and 3 seconds for the Moon to complete one lunar month."
Ancient Calendars:
inventors.about.com/library/weekly/aa070701a.htm
“Celestial bodies, the sun, moon, planets, and stars have provided us a reference for measuring the passage of time throughout our existence."
The Calendars Of Ancient Egypt:
http://www.cs.xu.edu/math/math125/09m/08EBJ.pdf
“The Egyptians of the ancient world used no fewer than three calendars between the time of their earliest history around 3000BCE and the time of their conquest under the Persians in 525 BCE."
45 B.C.: New Year’s Day:
history.com/this-day-in-history/new-years-day
“In 45 B.C., New Year’s Day is celebrated on January 1 for the first time in history as the Julian calendar takes effect. Soon after becoming Roman dictator, Julius Caesar decided that the traditional Roman calendar was in dire need of reform."
How Did The Months Get Their Names?:
blog.oxforddictionaries.com/2016/01/months-names
“As the new year starts you might have recently bought a new diary or calendar and thought ‘Where do these words come from?’ – at least that’s what I did."
The Roman Calendar:
timeanddate.com/calendar/roman-calendar.html
“The Roman calendar, or “pre-Julian” calendar, was created during the founding of Rome and is believed to have been a lunar calendar. The calendar originally consisted of hollow months that were 29 days long or full months that had 30 days."
Tongan Astronomy And Calendar:
hbs.bishopmuseum.org/pubs-online/pdf/op8-4.pdf
“From the exceedingly fragmentary and obscure accounts it appears that the Tongans possess but the vaguest notions of the heavens and of the relations of the sky to stars and sun to moon."
A Month by Month Guide To The Anglo-Saxon Calendar:
mentalfloss.com/article/61127/month-month-guide-anglo-saxon-calendar
“Today, all of our names for the months of the year can be traced back to Ancient Rome. January comes from Janus, the name of a dual-faced Roman god of entrances and gateways who was said to be perpetually both looking backward into the year that had just ended and forward into the year that is to come."
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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 twitter.com/TraceDominguez
DNews on Facebook facebook.com/discoverynews
DNews on Twitter twitter.com/DNews
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Episode 3 of 4
Check us out on iTunes! apple.co/1TXDZAI
Please Subscribe! bit.ly/28iQhYC
So a month is 30 days right? Except for the ones that have 31 days and then the one that has 28 but then sometimes that has 29 days. Yeah it’s confusing so let’s break it down.
+ + + + + + + +
Previous Episode:
How Drunk People Invented The Weekend: seeker.com/how-drunk-people-invented-the-weekend-1844934912.html
+ + + + + + + +
Sources:
The Sidereal And Synodic Months:
sumanasinc.com/webcontent/animations/content/sidereal.html
“The sidereal month is the time the Moon takes to complete one full revolution around the Earth with respect to the background stars."
Lunar Month:
universetoday.com/20053/lunar-month
“A lunar month is the amount of time it takes for the Moon to pass through each of its phases (new moon, half, full moon), and then return back to its original position. It takes 29 days, 12 hours, 44 minutes and 3 seconds for the Moon to complete one lunar month."
Ancient Calendars:
inventors.about.com/library/weekly/aa070701a.htm
“Celestial bodies, the sun, moon, planets, and stars have provided us a reference for measuring the passage of time throughout our existence."
The Calendars Of Ancient Egypt:
http://www.cs.xu.edu/math/math125/09m/08EBJ.pdf
“The Egyptians of the ancient world used no fewer than three calendars between the time of their earliest history around 3000BCE and the time of their conquest under the Persians in 525 BCE."
45 B.C.: New Year’s Day:
history.com/this-day-in-history/new-years-day
“In 45 B.C., New Year’s Day is celebrated on January 1 for the first time in history as the Julian calendar takes effect. Soon after becoming Roman dictator, Julius Caesar decided that the traditional Roman calendar was in dire need of reform."
How Did The Months Get Their Names?:
blog.oxforddictionaries.com/2016/01/months-names
“As the new year starts you might have recently bought a new diary or calendar and thought ‘Where do these words come from?’ – at least that’s what I did."
The Roman Calendar:
timeanddate.com/calendar/roman-calendar.html
“The Roman calendar, or “pre-Julian” calendar, was created during the founding of Rome and is believed to have been a lunar calendar. The calendar originally consisted of hollow months that were 29 days long or full months that had 30 days."
Tongan Astronomy And Calendar:
hbs.bishopmuseum.org/pubs-online/pdf/op8-4.pdf
“From the exceedingly fragmentary and obscure accounts it appears that the Tongans possess but the vaguest notions of the heavens and of the relations of the sky to stars and sun to moon."
A Month by Month Guide To The Anglo-Saxon Calendar:
mentalfloss.com/article/61127/month-month-guide-anglo-saxon-calendar
“Today, all of our names for the months of the year can be traced back to Ancient Rome. January comes from Janus, the name of a dual-faced Roman god of entrances and gateways who was said to be perpetually both looking backward into the year that had just ended and forward into the year that is to come."
+ + + + + + + +
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 twitter.com/TraceDominguez
DNews on Facebook facebook.com/discoverynews
DNews on Twitter twitter.com/DNews
+ + + + + + + +
