Posted on 02/29/2020 12:48:20 AM PST by Berlin_Freeper
Here are some things you may not know about the leap year, from famous people born on leap day, to why it is added to February and not other months. 1. Not every fourth year is a leap year
Only if the year is divisible by 400 will there be 366 days to make it a leap year. For example, 2100 is not a leap year while 2400 is.
2. There is a simple reason the 366th day is in February.
Back in the 8th century BC, the calendar was only 10 months long. Eventually, the Romans added January and February to the end of the year, with February, the final month, getting fewer days. Julius Caesar then reworked the calendar to align it with the sun, adding a Leap Day. In 1582, Pope Gregory XIII created the Gregorian calendar and established February 29 as the official date.
3. It coincides with the Summer Olympics and the US presidential elections
However, the first modern Olympics was held in Athens, Greece, in 1896, which was not a leap year. The year 2100 will be an Olympics year, but that will not be a leap year either. Although the first US presidential election was held in 1788, a non leap year, most of the subsequent elections took place during these special years.
4. They are special
The chance of someone being born on leap day is 1 in 1461, or the total number of calendar days in a four-year cycle. That means the odds of being born on Feb 29 are 0.068%. There are an estimated five million Leaplings worldwide.
According to the Guinness World Records, the Henriksen family from Andenes, Norway, currently holds the official record for the most number of children born in one family on leap day.
Karin Henriksen gave birth to her daughter Heidi in 1960, and her sons Olav and Leif-Martin in 1964 and 1968 respectively.
Meanwhile, the Keogh family in the United Kingdom produced three consecutive generations of family members on Feb 29. Peter Anthony was born in 1940, his son Peter Eric was born in 1964, while his granddaughter Bethany Wealth was born in 1996.
4. Celebrity Leaplings
Famous people born in a leap year include American rapper Ja Rule (born 1976); American author and motivational speaker Anthony Robbins (born 1960); British footballer Darren Ambrose (born 1984); Australian cricketer Sean Abbott (born 1992); and London-born actor Joss Ackland (born 1928).
For the Celsius scale you convert to the absolute temp scale, Kelvin, by adding 273.15. Half of zero degrees Kelvin is zero. Here is the strange part now. All matter is not only particles but waves as well. The wavelength is equal to planks constant divided by the momentum. For an atom at absolute zero you have zero momentum. That stretchs out the wavelength to infinity as you get close to absolute zero.
One of the bizarre effects because of this is what is known as a Bose-Einstein condensate. Atoms lose their individual nature and become part of a large wave instead. This effect is only seen in labs because the natural low temperature of the Universe is not cold enough to see this effect.
A leap day every 400 years is .0025 of a day, not .0022 , so the Gregorian calendar is 365.2425 days long.
Look at Christopher Clavius: https://en.wikipedia.org/wiki/Christopher_Clavius
and Aloysius Lilius: https://en.wikipedia.org/wiki/Aloysius_Lilius
True, but you will only be 20 in 2100 since you will only have one fourth as many birthdays.
The 1504 leap year lunar eclipse that saved Christopher Columbus
https://en.wikipedia.org/wiki/March_1504_lunar_eclipse
The 1504 leap year lunar eclipse that saved Christopher Columbus
https://en.wikipedia.org/wiki/March_1504_lunar_eclipse
Where does space go?
I know how to fix the leap year problem
Maybe I should start a Go Fund Me.
7
James M. Wilson, a premier of Tasmania in the mid-19th century, was born AND DIED on Leap Day (1812-1880).
If you’re in a room of mirrors on all sides plus floor and ceiling - and you turn off the lights, how long before the room goes dark?
Our building has a ground floor. With the 1st floor the next one above.
So the answer is 3 in my case.
In 1980, Goldie Howe, of the Hartford Whalers, scored his 800th goal of his NHL career.
Happy Bisextile Day!
Zero degrees Fahrenheit is 255.372° Kelvin. Half of that is 127.686° K, which is -229.835° F.
Zero degrees Celsius is 273.15° Kelvin. Half of that is 136.575° K, which is -136.575° C.
Yes, you’re right. I don’t know why I thought I had calculated it as .2422 earlier...
“...how long before the room goes dark?”
Light travels at...186,282 miles per second (299,792 kilometers per second)...so it would depend on the size of the room, I guess?
(Yes...I had to look that up. LOL.)
When the light goes back on— how long before you see anything?
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