Full Width [alt+shift+f] Shortcuts [alt+shift+k]
Sign Up [alt+shift+s] Log In [alt+shift+l]
26
This cube manages to balance itself on a corner, and can simultaneously rotate around its axis in a controlled manner. It does so using clever controls and a set of three reaction wheels. The original idea for this device comes from researchers at ETH Zürich, who demonstrate their “Cubli” in this video. Its design has… Continue reading Balancing cube
a year ago

Improve your reading experience

Logged in users get linked directly to articles resulting in a better reading experience. Please login for free, it takes less than 1 minute.

More from Willem Pennings

Fixing my heating system

The heating system in my apartment building consists of a group of heat pumps that deliver warm water to the underfloor heating system of about a dozen apartments, including mine. During the warm summer months, the system supplies cool water instead. The heat pumps figure out whether to supply warm or cool water, and a… Continue reading Fixing my heating system

10 months ago 48 votes
ClockSquared improvements

My ClockSquared project has a long history – it goes all the way back to 2015, when it was simply called the “Birthday word clock”. I haven’t spent much time on the project in recent years, but I’ve upgraded the internals a while ago and finally felt like writing a post about it. Two things… Continue reading ClockSquared improvements

over a year ago 19 votes
ClockSquared Mini, a word clock wristwatch

About a year ago, I had some time to spare over the summer and decided to challenge myself with a project that I call “Clocksquared Mini”. It is Clocksquared, but in a tiny wristwatch package. This gives rise to a major challenge, as everything has to be shrunk down approximately ten times from a 300x300x50… Continue reading ClockSquared Mini, a word clock wristwatch

over a year ago 13 votes
Home Assistant-compatible air quality sensor

I recently moved and our new home is equipped with a ventilation system that distributes fresh (outside) air through the house and recoups heat from the air that is exhausted. There is a problem with this system, though. Sometimes, for example when a neighbour lights their wood stove, the system pulls in smoke, even though… Continue reading Home Assistant-compatible air quality sensor

over a year ago 16 votes

More in science

The Debate: Should Medical Aid in Death Be Legal? | Out-Of-Pocket

Oh boy, I’m nervous to wade into this conversation

17 hours ago 3 votes
New Conversations, Deep Questions, Bold Ideas in Season Four of ‘The Joy of Why’

Steven Strogatz and Janna Levin return for a new season on major scientific and mathematical questions of our time, with 12 all-new episodes and a new format. The post New Conversations, Deep Questions, Bold Ideas in Season Four of ‘The Joy of Why’ first appeared on Quanta Magazine

13 hours ago 1 votes
Issue 18: Urbanism with Chinese characteristics

Plus: Reducing the motherhood penalty by extending fertility, the steam networks of New York City, and the rise and fall of the Hanseatic league.

14 hours ago 1 votes
Hybrid Bionic Hand

If you think about the human hand as a work of engineering, it is absolutely incredible. The level of fine motor control is extreme. It is responsive and precise. It has robust sensory feedback. It combines both rigid and soft components, so that it is able to grip and lift heavy objects and also cradle […] The post Hybrid Bionic Hand first appeared on NeuroLogica Blog.

16 hours ago 1 votes
How To Get Cheap Ozempic

Or other, more effective GLP-1 drugs

2 days ago 4 votes