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

the fibonacci clock requires math to tell time
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.


Waze now tells you the cost of toll roads along your route

Navigation app Waze now tells you how much you'll be paying for toll roads, should you decide to take them. Enter your route and the app will display the various tolls you'll be paying on that particular trip.

Amazon plunges price of this already-affordable Kayak set to $42 for Prime Day

A few hours before Amazon wraps up Prime Day 2019, but the discounts are still coming. If you are looking to get an inflatable kayak, now is the time. The Intex Challenger K1 Kayak is just $42 for a limited time.
Home Theater

Wireless headphones are finally awesome, and these are our favorites

With sleek forms, prime audio quality, and the freedom of untethered listening, there has never been a better time to pick up a pair of wireless headphones. These are the best ones currently available.

Beats Solo3 and Powerbeats3 wireless headphones get big Amazon discounts

If you’re looking to snag a pair of Beats, now's a great time as Amazon is dropping early Prime Day sales on Beats by Dre products, including the Powerbeats3 and the Beats Solo3. Order yours today.
Smart Home

Google Home Mini vs. Amazon Echo Dot: Which smart speaker should run your home?

We put the two most popular smart home speakers — the Google Home Mini and the third-generation Amazon Echo Dot — together and tested them on appearance, audio, and abilities. So which should you buy?

This Prime Day Lightning Deal on Neato’s D4 robot vacuum saves you 40%

Prime Day 2019 is shaping up to be a banner year for sales on smart home products, including robot vacuums. However, the deal we uncovered for Neato's D4 Robot Vacuum is time-limited and only while supplies last, so act fast.

These Prime Day deals knock Echo and Ring prices to ridiculous lows

fter weeks of anticipation, Amazon Prime Day deals are finally here, with 24 more hours of non-stop deals. Prime Day is loaded with deep discounts on Echo, Ring Video Doorbells and Fire TV devices

Best Prime Day mattress sales: Tempur-Pedic, Sealy, and Amazon deals

The best Prime Day deals are here, and some of the very best discounts this year are on mattresses. With price cuts from Tempur-Pedic, Cocoon, and Helix, now is a great time to score some savings a new bed.

We found a Prime Day deal hack that gets you the Echo Show 5 for next to nothing

Even at $50 during Prime Day, the Echo Show 5 is a great deal. But our intrepid deal team has found a Prime Day hack that could snag you one of these devices for literally next to nothing, as long as you have the right Echo to trade in.

Snag this Philips Twin TurboStar Airfryer for 50% off this Prime Day

From healthy snacks to full family dishes, you can count on the Philips Twin TurboStar XXL Air Fryer for reliable cooking. Order yours today for only $115 instead of $230 on Prime Day.

The all-new Echo Show 5 gets 44% shaved off its price for Prime Day

From playing music to controlling smart home devices, the Echo Show 5 makes a friendly, all-around house helper and entertainment device. Normally $90, Amazon has made it even more affordable for only $50 this Prime Day.

Best of the best Prime Day 2019 Tuesday deals on Echo, 4K TV, Apple, Instant Pot

The deals keep coming for Prime Day 2019 as we enter the second day of the summer sales bonanza. Here are the very best of the best Prime Day deals for smart home devices, 4K TVs, Apple products, and small kitchen appliances.

Walmart Prime Day sale: 4K TV, Apple Watch, and Nintendo Switch Deals

The Walmart Prime Day sale continues to go strong as the first day of Amazon's 48-hour deals event comes to a close. There are loads of great Apple Watch, Nintendo Switch, and 4K TV deals going on right now.

The best Prime Day smart home deals: Echo, Blink, and Google Nest discounts

Amazon, Walmart, and Google Nest played a hard game with pre-Prime Day announcements and enticing early smart home deals. Now the pre-game show is over Amazon, Walmart, and Google Nest have rolled out their best Prime Day 2019 deals.