Happy Pi Day!

[Rick Courtright]

Hi,

Guys on the radio reminded us it's that day again, when the mathematicians try to outdo themselves figuring how far out they can figure the value of Pi, that ever so useful number most of us remember as about 3.14 or 3.1416, maybe even stretching it way out to 3.14159.

They said the current "record" is in the neighborhood of 32 trillion digits! Some people need something to do...

Rick C

 

[Kevin]

Until someone somewhere comes out with a .314 caliber I don’t think Pi day will be as recognized as October 22nd.

Or March 27th? Hmmm, 3/27 day anyone? It’s a Sunday this year.

 

[Montelores]

Rick, that’s crazy talk.

Not rational.

:wink:

Monty

 

[RSIno1]

 

[caryc]

22 divided by 7 = Pi. or pretty close to it.

Rick, I heard that guy on KFI probably the same time you heard it.

 

[powder smoke]

A digit pie whole another version! Looks tasty!

 

[Ale-8(1)]

Just a reminder.

If you care, here's the first million digits . . .

https://www.piday.org/million/

 

[eveled]

I resisted for a long time but diameter squared x .7854 for some reason is easier to use and teach.

Not to take away from Pi day.

I always wonder about these early math proofs and constants. They must have absolutely blown minds. Now they are common knowledge we build on.

 

[pie]

What day? You spelled it wrong.

 

[Dan in MI]

 

[Armybrat]

I prefer pecan - warm after cooling a bit out of the oven….

 

[WendyZXZ]

Fondly remembering our old friend Rick from the forum. RIP, old buddy...

 

[Johnny-Baseball]

Stopped by my local 7-11 yesterday for gas. Went inside and the friendly cashier offered to sell me a 12" sausage/peperoni pizza for $3.14. I said sure. Three Hispanic workers were inside, watching. When I asked if they understood why the price was so low, they all answered, "Si. It's PI day." Guess they all had good HS math teachers.

Somehow I suspect my neighborhood kids don't know what PI is, how it's calculated, or used.

 

[Watertender]

The 1st member of a family that went to college was visiting his grandpa who was a share cropper. Grandpa asked his grandson to say something in college talk. The kid said Pi R Square..... Grandpa replied. I don't know what kind of stupid that college is but Pi R Round, Cornbread R Square...

 

[Ale-8(1)]

The 1st member of a family that went to college was visiting his grandpa who was a share cropper. Grandpa asked his grandson to say something in college talk. The kid said Pi R Square..... Grandpa replied. I don't know what kind of stupid that college is but Pi R Round, Cornbread R Square...

Very old, but still good.

 

[44Squatch]

Until someone somewhere comes out with a .314 caliber I don’t think Pi day will be as recognized as October 22nd.

Or March 27th? Hmmm, 3/27 day anyone? It’s a Sunday this year.

This

 

[Yaworski]

Somehow I suspect my neighborhood kids don't know what PI is, how it's calculated, or used.

Reminds me of something from back in college.

I took a trig class because I needed an extra class and wanted an easy A. One guy in the class kept asking if he could use his calculator but the instructor kept saying, "No, you don't need a calculator." He kept badgering her until she relented and he failed the test.

The problem was that the answers needed to be in a form like 7π/2 but he crunched it to be 10.996 so all of his answers were "not in required format." He just didn't get it.

 

[Watertender]

I used to have to figure a lot of tank capacities when I was Chief Engineer. A good friend of mine was an inspector for the bureau of weights and measures. He taught me the formulas and it always blew people's minds when I could tell them what a tank would hold just by taking a couple of measurements

 

[Ale-8(1)]

231 cu-in per gallon.

 

[Watertender]

231 cu-in per gallon.

Plus or minus 6 cubic inches depending on temperature!

 

[Ale-8(1)]

Plus or minus 6 cubic inches depending on temperature!

Hmmmm. Little help with that? A one-gallon container will mesure 231 cubic inches LxWxH, regardless of temperature. I realize that water expands upon freezng. Is that phenomenon that you are referring to?

 

[Watertender]

Hmmmm. Little help with that? A one-gallon container will mesure 231 cubic inches LxWxH, regardless of temperature. I realize that water expands upon freezng. Is that what you are referring to?

Petroleum products also expand and contract depending on temperature. Dick had graduated measuring cans in both 1 gallon and 5 gallon sizes. He would pump his sample into the container and read the pump meter while measuring the temperature. A gallon had to be between 225 and 237 cubic inches and 5 gallons had to be between 1125 and 1185 cubic inches.

 

[Ale-8(1)]

Petroleum products also expand and contract depending on temperature. Dick had graduated measuring cans in both 1 gallon and 5 gallon sizes. He would pump his sample into the container and read the pump meter while measuring the temperature. A gallon had to be between 225 and 237 cubic inches and 5 gallons had to be between 1125 and 1185 cubic inches.

OK . So +/- 2.6% of a "gallon".

 

[Yaworski]

OK . So +/- 2.6% of a "gallon".

I would call that measurement tolerance.