Skip to main content

This Fibonacci clock forces you to do math to tell the time

the fibonacci clock requires math to tell time
Image used with permission by copyright holder
Some people like a little challenge in the morning, and that’s what Philippe Chretien hopes to offer with his new device. He is the man behind the Fibonacci Clock, which is exactly what it sounds like: a clock that uses the Fibonacci sequence to display the time.

To back up a little bit, it’s essential to understand the Fibonacci sequence. Developed by mathematician Fibonacci in the 13th century, this sequence of numbers starts with one and one. Each subsequent number is the total of the previous two numbers (so one and one makes two, two and one makes three, and so on). To create this clock, Chretien used five terms: one, one, two, three, and five.

The screen of the clock has a series of glowing, colorful squares, and each one corresponds to a number in the sequence. Hours are depicted in red, while minutes are shown in green. If a square is used to show both hours and minutes, it turns blue. All of the white squares are for decorative purposes; you consider them null while adding up the time.

Of course, you’ll need to do a bit of math in order to get the time of day from this alarm clock. To read the hour, you add up the values of the red and blue squares. For the minutes, you do the same with the blue and green squares. Minutes are displayed in five-minute increments, meaning you have to multiply your sum by five to get the accurate total.

Once you get used to the math, the clock serves as more than just your wakeup reminder; it can be programmed to act as a lava lamp with changing colors.

Additionally, Chertien made the clock to be hackable. The device itself is powered with an Atmega328 microcontroller that runs Arduino, and users can change the clock’s code using Arduino IDE. He designed the alarm clock to be an open-source hardware project, and he welcomes you to customize it to your liking.

For about $95, you can make a pledge on the Fibonacci Clock’s Kickstarter campaign page and receive one in the mail by October 2015. However, you can pledge $62 to receive a DIY kit including everything you need to create your own Fibonacci Clock if you’re feeling adventurous.

Editors' Recommendations

Krystle Vermes
Former Digital Trends Contributor
Krystle Vermes is a professional writer, blogger and podcaster with a background in both online and print journalism. Her…
Are robotic pool cleaners worth it?
The Airper Seagull SE robotic pool cleaner at the bottom of a swimming pool.

The worst part of owning a swimming pool is taking care of it From filter maintenance and skimming debris from the surface to managing chemicals and more, you'll likely find yourself hanging out around the water more often than you're actually in the water. Robotic pool cleaners are designed to alleviate this pinch point of pool ownership by giving you back your time and automating most of your tasks.

But are robotic pool cleaners worth it, or are they a gimmick that still require heaps of manual input? Here's a closer look to help you decide if one would be a good addition to your backyard.
Budget-friendly devices are often a hassle

Read more
Best Buy cut this air fryer’s price in half, down to just $25
The Bella Pro Series 3 Quart Air Fryer near food.

If you want your food crispy all over without having to deal with draining a ton of oil, your best bet is to use an air fryer. They're never too expensive and there are always great air fryer deals going on, but you'll rarely find one with a price like this. Right now, the Bella Pro Series 3 Quart Analog Air Fryer is half off, moving its price from $50 to $25. To pick yours up today all you need to do is tap the button below. If you're interested in our take, however, be sure to keep reading.

Why you should buy the Bella Pro Series 3 Quart Air Fryer
The Bella Pro Series 3 Quart Air Fryer holds up to about 2.5 pounds of food, heats up to 400 degrees, and has easily-removable dishwasher-safe parts. If you notice it is "analog" that is because it has a 60 minute shut off timer to give you peace of mind and an easy way to time your cooking. Of course, this means there aren't a ton of digital options, buttons, and settings. However, this can be a plus for some and possibly you. Not every item in the home needs to be "smart" and less can certainly feel like more.

Read more
Revolution Cooking’s high-speed smart toaster is $100 off today
Someone using the Revolution Cooking InstaGLO R180 smart toaster in the kitchen.

If you're thinking about getting a new toaster for your kitchen, why not go with a high-speed smart toaster? Best Buy is currently selling the Revolution Cooking InstaGLO R180 smart toaster with a $100 discount, slashing its price to $250 from $350 originally. There's no telling how much time is remaining before this offer expires though, so if you're interested, it's highly recommended that you proceed with the purchase right now in order to secure the savings.

Why you should buy the Revolution Cooking InstaGLO R180 smart toaster
Are smart kitchen gadgets worth it? The answer is a resounding yes, and the Revolution Cooking InstaGLO R180 smart toaster will show you why. With this kitchen device, you'll no longer suffer from burnt or uneven toasts as it's powered by the brand's InstaGLO heating system. The technology will start toasting your bread in just two seconds without any need for preheating. You'll get bread that's crunchy outside and moist inside every single time, which is a huge upgrade over the inconsistencies of traditional toasters.

Read more