New Take on the Binary Clock

By now it might seem like there’s no new way to build a binary clock. It’s one of the first projects many build to try out their first soldering irons, so it’s a well-traveled path. Every now and then, however, there’s a binary clock that takes a different approach, much like [Stephen]’s latest project which he calls the byte clock.

The clock works by dividing the 24-hour day into half and using an LED to represent this division, which…

World’s biggest bike share scheme clocks up 115m hires per year

The Chinese city of Hangzhou has made cycling a key part of its integrated public transport system, including a free bike hire service

The Hangzhou Bicycle Service in China is now the biggest public bike share scheme in the world after expanding from 2,800 sets of wheels in 2008, to more than 85,000 this year. Around 350,000 hires take place there every day.

Set up by the government as part of an integrated city-wide public transport plan, the project’s bikes have now been hired for free more than 700m times and clock up 115m hires per year.

The first hour of hire is free and as 95 per cent of journeys last fewer than 60 minutes, most users ride free of charge. The scheme makes a profit anyway through a combination of paid trips and by selling advertising space on its 3,600 bicycle docking stations.

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This week, the Hangzhou Bicycle Service was awarded the International Ashden Award for Sustainable Travel as a…

Jens Olsen’s World Clock

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The front of the World Clock
The clock tells you everything from local time to the dates of religious holidays. Alphalphi~commonswiki
It has 15,448 individual parts. Mart Moppel/CC BY-SA 2.0
The clock was covered with nearly 8 pounds of gold. Furya/CC BY 2.0

As famous clocks go, Jen’s Olsen’s World Clock is a sight to behold. Sitting pretty in a tower at Copenhagen’s City Hall, this gilded horological masterwork is geared up to calculate global times and dates, and planetary positions with remarkable precision. And, as long as it continues to be wound once every week, it will continue to display this information for the next 2,500 years.

One of the most precise mechanical clocks in the world,…

How to Add a Drop-Down Calendar to the macOS Menu Bar Clock

Windows users can click the clock on the taskbar to see a calendar, which is perfect if you need to know what day of the week June 17th is. Macs don’t offer this feature, at least not out-of-the-box. But there are programs that can add one.

Our favorite free option is a program called Itsycal. It’s lightweight, shows your Calendar appointments, and even supports keyboard shortcuts for quick browsing. Here’s how to set it up, and even customize it to replace the clock on your menu bar.

Getting Started With Itsycal

Head to the itsycal homepage and download the application. It comes in a ZIP file which you can unarchive by clicking. Drag the application to your Applications folder.

Launch the application and you’ll see a calendar icon in your menu bar. Click this to bring up a tiny calendar popup.

Appointments are shown below the calendar, and you can click any day to see its appointments. Don’t like using the mouse? You can browse using the keyboard: “J” and “K” browse up and down, while “H” and “L” browse left and right. You can also use the arrow keys: Left and Right jump forward a month, while Up and Down jump between years.

At the bottom of the pop-up window is an icon that looks like a gear. Click to to access the preferences.

From here you can decide…