An anonymous reader quotes a report from 404 Media: The secondary market for decades old, low-tech John Deere tractors has been booming for years as farmers have sought reliable tractors that they can actually fix without having to deal with John Deere's repair monopoly. A Canadian company has seen that demand and came up with a radical thought: What if they made a new, repairable, "no-tech" tractor to solve what has become a gigantic pain point for farmers? Alberta's Ursa Ag says that it has been inundated with demand after announcing its tractor, which costs roughly half as much as a Deere and has the benefit of not being a repair nightmare. [...] Ursa Ag markets its tractors as "no frills" and "built to last." Ursa Ag's Doug Wilson told me that the company designed the tractor because of a need in the marketplace for a new machine that isn't loaded with tech and is easy to maintain. The company follows in the footsteps of consumer electronics companies like Fairphone, which makes a repairable smartphone and Framework, which makes modular, repairable laptops. The demand Ursa Ag has seen is part of the backlash to manufacturer repair monopolies and the injection of technology and internet-connected sensors and terms of use into even the most basic of gadgets. "I talk to farmers every day and I hear from farmers every day about how they went out and bought machinery from 1987 so that it wouldn't have a computer on it," Wilson said. "All of this came from a simple discussion with a customer who wanted to be able to turn [the tractor] on at the start of the day, to use it, and shut it off at the end of the day. It needed to work, so that's what we built." Ursa Ag's tractor has been hyped in agriculture circles after Wilson showed the tractor off at a Canadian farm show and it was featured by Farms.com. Wilson said more than a thousand farmers have contacted him after that show, from roughly 30 countries. "I got a handwritten letter from a farmer in France who doesn't own a computer and wanted us to mail him information about the tractors," he said. He said the company has thus far made a couple fewer than 100 tractors but is working on tripling its production capacity and has seen a lot of demand over the last few months. "Given the number of my customers that carry flip phones, I would say there is consumer pressure to back away from some of the technology that is unnecessary to perform everyday tasks," Wilson said. "So that is definitely transferable to dishwashers and washing machines, refrigerators. Refrigerators that have screens on them that'll tell you what's inside. It's a little crazy." "That high-tech stuff, the million-dollar John Deere tractor has a place. It has technology that is well worth the money," Wilson said. "But that technology is needed for 5 percent of what a farm does. There are so many applications for tractors on farms that don't require technology. The technology that goes into even a calculator is not required for most farming applications."

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An anonymous reader quotes a report from UploadVR: A group of independent researchers built a device that can artificially induce smell using ultrasound, with no consumable cartridges required. [...] The team of four are Lev Chizhov, Albert Yan-Huang, Thomas Ribeiro, Aayush Gupta. Chizhov is a neurotech entrepreneur with a background in math and physics, Yan-Huang is a researcher at Caltech with a background in computation and neural systems, and Ribeiro and Gupta are co-researchers on the project with software engineering and AI expertise. Instead of targeting your nose at all, the device directly targets the olfactory bulb in your brain with "focused ultrasound through the skull." The researchers say that as far as they're aware, no one has ever done this before, even in animals. A challenge in targeting the olfactory bulb is that it's buried behind the top of your nose, and your nose doesn't provide a flat surface for an emitter. Ultrasound also doesn't travel well through air. The solution the researchers came up with was to place the emitter on your forehead instead, with a "solid, jello-like pad for stability and general comfort," and the ultrasound directed downward towards the olfactory bulb. To determine the best placement, they say they used an MRI of one of their skulls to "roughly determine where the transducer would point and how the focal region (where ultrasound waves actually concentrate) aligned with the olfactory bulb (the target for stimulation)". [...] According to the researchers, they were able to induce the sensation of fresh air "with a lot of oxygen", the smell of garbage "like few-day-old fruit peels," an ozone-like sensation "like you're next to an air ionizer," and a campfire smell of burning wood. While technically head-mounted, the current device does require being held up with two hands. But as with all such prototypes, it likely could be significantly miniaturized.

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