Curiously enough, the cubes don’t move, only the background color changes…
Here is our tutorial to create an amazing autokinetic animation.
Curiously enough, the cubes don’t move, only the background color changes…
Here is our tutorial to create an amazing autokinetic animation.
Clever visual proof by Mike Hirschhorn.
Write the digit “1” exactly 317 times, and you get a palindromic prime number. Moreover, 317 itself is a prime number!
The sum of the sequence of the first n cubes equals [n(n+1)/2]² as shown below:
1³+2³+3³+…+n³ = (1+2+3+…+n)² = [n(n+1)/2]²