# Happy Birthday Greg B. & Einstein 3-14 & 3-15

In summary, today is Einstein's birthday (1879) and tomorrow is Greg B.'s birthday. Happy Birthday to Greg and to all those who wished him well. The conversation also mentioned that Physics Forums started in the spring of 2001 and that Greg was 3 years old.
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Today 3-14 is Einstein's birthday (1879). Tomorrow 3-15 is Greg B.'s birthday. Happy Birthday @Greg Bernhardt :)

JD_PM, BillTre, Ibix and 3 others

Greg Bernhardt, anorlunda and Charles Link
Happy Birthday!
It's March 15 in some parts of the world, good enough.

Greg Bernhardt, Ibix and Charles Link
15th here as well, Happy Birthday Greg

Happy Birthday Greg!

Greg Bernhardt
Happy birthday Greg!

Greg Bernhardt
Happy Birthday Sir. Wish I could have a beer and celebrate with you.

Greg Bernhardt, cnh1995, JD_PM and 1 other person
Greg Bernhardt, dlgoff, cnh1995 and 1 other person
Happy Birthday Boss!

Greg Bernhardt
Thanks all! Was a good day!

DifferentialGalois, dlgoff, berkeman and 3 others
Late birthday wishes 'O-powerful one...

Greg Bernhardt
My (late ) birthday wishes too!

Greg Bernhardt

## 1. What is the significance of celebrating Greg B. and Einstein's birthdays on 3-14 and 3-15?

The dates 3-14 and 3-15 are commonly known as Pi Day and Pi Approximation Day, respectively. These dates are chosen because the mathematical constant pi (π) is approximately equal to 3.14, and Einstein's famous equation E=mc² involves the speed of light squared, which is approximately equal to 9 trillion (3²) meters per second. Therefore, these dates are a fun way to celebrate and honor both Greg B. and Einstein's contributions to science and mathematics.

## 2. Who is Greg B. and why is his birthday celebrated on Pi Day?

Greg B. is a fictional character created by Larry Shaw, a physicist at the San Francisco Exploratorium. He is often referred to as the "Prince of Pi" and is known for throwing elaborate Pi Day celebrations at the Exploratorium. His birthday is celebrated on Pi Day because it falls on the same date as the mathematical constant pi (3.14).

## 3. Why is Pi Approximation Day celebrated on 3-15 instead of 3-14?

Pi Approximation Day is celebrated on 3-15 because it represents the first three digits of pi (3.14) and is the closest approximation to the true value of pi (3.14159...). This date was chosen to honor the importance of approximations in mathematics and science.

## 4. How is Pi Day celebrated in the scientific community?

Pi Day is celebrated in various ways in the scientific community. Some people may participate in math and pi-related activities, such as solving pi puzzles or reciting the digits of pi. Others may attend lectures or talks about the history and significance of pi. Some schools and universities may also hold special events or competitions related to pi on this day.

## 5. Are there any other notable scientists or mathematicians with birthdays on 3-14 or 3-15?

Yes, there are several other notable scientists and mathematicians with birthdays on 3-14 and 3-15. Some examples include mathematician Georg Cantor (3-14-1845), physicist and chemist Michael Faraday (3-15-1791), and Nobel Prize-winning physicist Albert Einstein (3-14-1879). Additionally, 3-14 is also the birthday of Stephen Hawking, another famous physicist who was born in 1942.

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