Rubik’s Cubes have been sold in stores for more than 40 years now, but most of us still can’t solve them. Others take the puzzles very seriously, competing in many speed-solving competitions around the world. The world record for the fastest Rubik’s Cube solution is a mere 3.47 seconds, set by China’s Yusheng Du. But […]
Many power tools have the potential to cause serious harm, but few are as dangerous as table saws. But table saws are also indispensable for woodworking, which means that people are willing to risk their fingers to use them. There is a manufacturer called SawStop that builds table saws that automatically stop the blade if […]
GPS is perfect for navigating roads, because that doesn’t require much precision. But GPS is only accurate to several meters, which means that it is unsuitable for applications that require more precise positioning. GPS RTK (real-time kinematic) systems can achieve much greater accuracy, but they are complex and require a subscription to a correction service. […]
Wheeled vehicles are so common because they’re efficient. If a vehicle will drive on a relatively smooth and flat surface, wheels are the most efficient option. But on rough terrain, wheels don’t always cut it. For such terrain, tank tracks and more exotic options often perform better than wheels. Walking machines take that to the […]
Damaged, leaking pipes are not only a nuisance to clean up after, but they can also create major inefficiencies within water delivery systems, leading to a loss in both the water itself and the electricity required to disinfect and pump it. Over the past decade, water pipeline detection systems have been upgraded to include state-of-the-art […]
In typical applications, the optimal mirror is as flat as possible. The flatter the mirror, the less optical distortion it imparts onto the reflected “image.” Distortion isn’t often desirable, so precision mirror manufacturers take great pains to manufacture ultra-flat mirrors. But distortion is sometimes a good thing, such as when you want to focus reflected […]
In the world of computing, many interfaces utilize a primary/secondary model of asymmetric communication, in which a primary host device controls one or more secondary client devices. This model is, for example, common among PATA and SATA hard drive arrangements. It is also common in clock networks, with a central time server updating several client […]
If you’ve ever been lucky enough to visit a country in the Middle East or around the Mediterranean Sea, then you’ve probably seen street food vendors cutting slices off of a big ol’ hunk of slowly rotating meat. This delicious delicacy is called shawarma and is a form of vertical rotisserie. The meat can be […]
The Commodore 64 is one of the most iconic computers of all time and it is Commodore’s best known model. But Commodore made many other well-loved models, including the VIC-20, the Amiga, and the PET. The Commodore PET 64, which Commodore released late in the model range’s life for educational use, was Dave Luna’s first […]
Consumer IoT (Internet of Things) devices provide convenience and the consequences of a failure are minimal. But industrial IoT (IIoT) devices monitor complex and expensive machinery. When that machinery fails, it can cost serious money. For that reason, it is important that technicians get alerts as soon as an abnormality in operation occurs. That’s why […]
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