My door handle broke today. The way I fixed it was hilarious. Possibly the hardest way possible.
After disassembling the handle, I’ve realized that one part has scattered into pieces. Something called “Tubular Mortice Door Latch”. Quick eBay search gave me this:
Exactly what I need! But before placing an order I was given a size option of 64mm or 75mm. And here I was, sitting in the kitchen, needing a ruler for the first time since High School!
I was sure I had none. Taking a quick look at my body parts, I couldn’t remember if any of them was 75mm. I started to inspect anything that was around me. Nothing helped. And then I looked back at my computer screen. Oh! Bingo & Eureka! The screen! My mind started to rattle around.
MacBook has a 13.3-inch screen, which is 33.78cm. The resolution is 1280×800. Screen width to height ratio then is 1280/800=1.6. And it is rectangular! Which brings me to good ol’ Pythagorean theorem:
c2 = a2 + b2
And since the screen ratio is 1.6 we get
c2 = a2 + (1.6a)2
c2 = 3.56a2
a = sqrt( 33.78 * 33.78 / 3.56 ) = 17.9
So the height of the screen is 17.90cm, therefore the width is 1.6 times wider. Which makes it 28.64cm at 1280px.
Next moment the Photoshop was opened and I was asked to enter the width of a new document. I needed 75mm, so I’ve entered this 7.5 * 1280 / 28.64 = 335px.
It matched! With 335px width document, I instantly knew which door latch size to choose.
I’ve ordered it and started laughing. The way I’ve calculated it was absurd. Have I just measured an object in the most geeky way? It took me 15 minutes! Sure there was a better way. I looked down at the desk. All calculations were done on simple squared paper. And as we all know two squares makes 1cm. Moreover, at the bottom of the page was a ruler!
Yep, think twice! Solving it the hard way might seem as a fun thing to do. But I’m sure there are funnier ones.