Have you ever been to the crest of a rollercoaster and have seen the whole amusment park and beyond. Well some guy with WAY too much time, created a formula to determine how far out you can see in miles!
The formula is pretty easy:
(A=altitude in FEET)
Distance in Miles= 1.22 X (square root of A)
For example if a rollercoaster's crest is 400 feet above sea level than you would see for 24.4 miles out (1.22 X square root of 400[20])
Tuesday, May 29, 2007
Friday, May 25, 2007
Fibonacci Sequence

If you ever looked at the seeds of a sunflower you will notice that they will follow a pattern that spirals out.
If you count it, the seeds would spiral out this way:
1,1,2,3,5,8,13,21,34,55,89,...
This is the Fibonacci Sequence. To find next value just add the two preceding values, e.g.
1+1=2
1+2=3
2+3=5
.
.
.
FOREVER!
This pattern is all over in nature: in sunflowers and and in pinapples to name a few.
Monday, May 21, 2007
Calling all PI-oneers!
Become a Pi-oneer!
All posts will be e-mailed to you immediately so you are always in the know!
All posts will be e-mailed to you immediately so you are always in the know!
The Return of Pi-Day 2007
Pi Day is thought of being on March 14 every year, but do remember 22/7 is the closest fraction approximation of pi. In European style dates are written day/month as opposed to American style which is month/day soooo.....
22/7 would translate to (in European style).....
22/7 would translate to (in European style).....
July 22, 2007
Pi day Returns!
Wednesday, May 16, 2007
Finally......A NEW POST!
Many of you have been wondering if I was going to post anymore (hopefully). Recently, I have had restricted acess to the computer due to many physical changes to my house but its now over so I hope to continue posting regularrly.
Here's a formula I found out by MYSELF (no books, websites, etc.)
If n is any positive number then:
2n+1= (n+1)^2 - n
Here's a formula I found out by MYSELF (no books, websites, etc.)
If n is any positive number then:
2n+1= (n+1)^2 - n
Wednesday, April 18, 2007
Sunday, April 8, 2007
Trick of the 11s
Try to do these math problems quick.
1x11=
2x11=
3x11=
12x11=
13x11=
25x11=
32x11=
99x11=
Those last few got pretty hard unless if you know the trick of the 11s.
Example: 12 (I will only show the answer in the example.)
x11 (You can only do this with 2 digit numbers)
1x11=
2x11=
3x11=
12x11=
13x11=
25x11=
32x11=
99x11=
Those last few got pretty hard unless if you know the trick of the 11s.
Example: 12 (I will only show the answer in the example.)
x11 (You can only do this with 2 digit numbers)
- Drop down the 1s digit in the non-11 number, this is the ones digit in the answer. 2
- Add the two digits together in the non-11 number to get the tens digit. 32
- Drop down the tens digit to get the digit in the hunderds place. 132
Easy as that!
A few exceptions:
If in step two, the numbers add up to be more then ten, then only use the ones digit and add one to the tens digit in step three.
~Sorry for the bad tutorial. Just type "Multiplying by 11" into google.
Thursday, April 5, 2007
Rubik's Cube- Blind Folded
Interesting fact: There are 519,024,039,293,878,272,000 different combinations on a rubik's cube. Only ONE combination is correct!
Monday, April 2, 2007
Sunday, April 1, 2007
Pi- Easy as 3.14159265...
How I wish I could recollect pi easily today!
Well here is a way to recollect pi easily today:
Count the number of letters in each word in the first statement and that number corresponds to a digit in pi.
How-3
I-1
Wish-4
I-1
Could-5
.
.
.
You should get 3.1459265 after finishing the phrase.
This phrase is called a PIEM. Another piem is:
"The point I said a blind Bulgarian in France would know."
Notice that point is in red. This is so becuase it actually represents the decimal point and should not be counted as a digit.
Have fun making your own piems and post them in a comment. Every once in a while I will post a piem.
Well here is a way to recollect pi easily today:
Count the number of letters in each word in the first statement and that number corresponds to a digit in pi.
How-3
I-1
Wish-4
I-1
Could-5
.
.
.
You should get 3.1459265 after finishing the phrase.
This phrase is called a PIEM. Another piem is:
"The point I said a blind Bulgarian in France would know."
Notice that point is in red. This is so becuase it actually represents the decimal point and should not be counted as a digit.
Have fun making your own piems and post them in a comment. Every once in a while I will post a piem.
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