Imagine If and Only If

Thanks to Annalee for this submission!

Square root of 2 = 2

With my YouTube-Video I will demonstrate that “2 = Square root of 2”. Where is the mistake? In spite of the fact that the text of this proof is written in German, you could understand it without knowledge of this language.

Thanks to Ortmar Buss (ojbuss) for this submission!

Movie poster

Do you know what movie this represents?

Graphing the Sine Wave

Math is beautiful and if someone doesn’t agree, you can just show him this magnificent gif.

Source

The Pardoner’s Puzzle

Are you ready for another brain teaser? You’re in for a treat.

The gentle Pardoner […] produced the accompanying plan, and said that it represented sixty-four towns through which he had to pass during some of his pilgrimages, and the lines connecting them were roads. He explained that the puzzle was to start from the large black town and visit all the other towns once, and once only, in fifteen straight pilgrimages. Try to trace the route in fifteen straight lines with your pencil. You may end where you like, but note that the omission of a little road at the bottom is intentional, as it seems that it was impossible to go that way.

Source

Vectors and (the) force

Math and Star Wars…

Thanks to LanceAF for this submission!

Priority peter meme

Thanks to Anon for this submission!

A Theorem About 1 and 0

Well, I don’t know if this is known already, so if it is, please comment the name of the theorem. If it isn’t, then someone put a comment on what it should be called. A number with all of its digits less than 2 (which means only 0 and 1) and has less than 10 digits, multiplied with a number with the same characteristics has a product reverse of that of another set of two numbers with the same digits as the first set but has its digits reversed. Example below.
111111111 x 111111101 = 12345677876543211
111111111 x 101111111 = 11234567877654321

Thanks to Kirk Bamba for this submission!

“Mostly” isn’t most if you put “only” in front.

Some of the words were obscured here because the slightly NSFW nature of the subject matter distracts from the Math Fail. Refer to the original source if you’re not squeamish.

Thanks to Anon. for this submission!