Pi in a pinch
Mar 15, 2020 20:32:10 #
My local dominoes pizza was advertising $ 3.14 pies on PI day on the internet. I responded that I was waiting for PHI day at 1.61 a Pie... did not go over well. Got 2 personal responses I am resisting reading. Oh well, maybe they didn't get it.
Mar 15, 2020 22:34:19 #
wrangler5
Loc: Missouri
TriX wrote:
It WAS a lot of money, even in 71 when I bought mine. For anyone who doesn’t know what my off-topic post is about, this is a Halda Speedpilot. It was hooked to your speedometer cable and the object, after setting the specified speed for that leg of the rally, was to keep the pointer in the correct position (keep your average speed correct)
Do I recall correctly that the device had a correction system? Where, if you got off course, you could press one of the buttons and it would essentially "subtract" the miles you then drove to get back on course, when you would press the button again and it would recalculate and display a revised speed-on-course (which you could then try to make up.) Or was that some other rally tool?
Mar 15, 2020 23:55:31 #
wrangler5 wrote:
Do I recall correctly that the device had a correction system? Where, if you got off course, you could press one of the buttons and it would essentially "subtract" the miles you then drove to get back on course, when you would press the button again and it would recalculate and display a revised speed-on-course (which you could then try to make up.) Or was that some other rally tool?
I didn’t remember, but this from MGAguru.com:
“If you get off course: Immediately you realize your error and turn around, switch off the Speedpilot and take a note of your Speedometer's mileage, drive at any safe speed back to the official course, check your speedometer to establish your Off-course mileage. Then continue on course for the same distance before turning the Speedpilot on again. Any speed changes encountered while making up this mileage should be adjusted in the normal way on the Speedpilot. The Speedpilot will now show the correct distance recording and automatically indicate how much time you have to make up to compensate for the detour. ”
Mar 16, 2020 03:19:10 #
wrangler5 wrote:
The Twinmaster made that much easier. As Trix said, you turn off the Speedpilot and set the Twinmaster to negative. Do I recall correctly that the device had a correction system? Where, if you got off course, you could press one of the buttons and it would essentially "subtract" the miles you then drove to get back on course, when you would press the button again and it would recalculate and display a revised speed-on-course (which you could then try to make up.) Or was that some other rally tool?
It would count backwards to show how far off course you were.
It took a while to figure this all out because it's all analog.
We did not have a computer to do the work for us. And it was a lot of fun.
Mar 16, 2020 04:39:40 #
drucker
Loc: Oregon
When my grandson and his fiancée are both math majors. He is now teaching advanced college level calculus to middle school and high school students at a charter school and she is pursuing a doctorate in math research -- whatever that is! When they got married last summer, the wedding cake was math themed and one the cakes, a 10" one, had pi to just over 900 decimal places beginning at the top center and continuing in a spiral over the top and down the sides. From a distance it just looked like a white cake covered with blue squiggles but up close you could see that the squiggles were actually numbers about 3/8" high. My son and I have been making wedding and special event cakes for quite a few years. We traded off working on it over a six-hour period and in the end questioned our sanity a bit, but it did garner quite a few comments at the reception.
Mar 16, 2020 10:24:40 #
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