Hybrid Rocket Engine Combines Ceramic Aerospike with 3D Printed Fuel

[Integza] has worked hard over the last year, crafting a variety of types of rocket and jet engine, primarily using 3D printed parts. Due to the weaknesses of plastic, all of which conflict with the general material requirements for an engine that gets hot, he has had less thrust and more meltdowns than he would have liked. Undeterred, he presses on, now with a hybrid rocket aerospike design. The goal? Actually generating some thrust for once!

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Experimental AI Tool Makes GTA 5 Look Stunningly Photorealistic – Here’s How

An AI research group has released a new video showcasing a new photorealism enhancement tool being applied to GTA 5 – and the results are stunning.As part of the Intel ISL research group’s Photorealism Enhancement project, the new machine learning tool helps make computer-generated images more realistic by analyzing each frame of the game animation and comparing that to real-life images before applying enhancements based on them. In a video demonstration, Intel ISL shows some regular gameplay of Grand Theft Auto 5 before switching over to its tool’s output, which analyzes the gameplay footage and uses machine learning to make it look more photorealistic.

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Carbon Nanotube Spaghetti Proves Perfect for Flexible, Wearable Energy-Harvesting Generators

Directly printed using water as the solvent, these eco-friendly thermoelectric generators are flexible and suitable for wearable use.

A team of researchers from Stanford University has published a paper detailing non-toxic, flexible energy-harvesting devices which they say could power future wearable electronics — thanks to carbon nanotube spaghetti.

“Carbon nanotubes are one-dimensional materials, known for good thermoelectric properties, which mean developing a voltage across them in a temperature gradient,” explains Professor Eric Pop of the material focused upon in the paper. “The challenge is that carbon nanotubes also have high thermal conductivity, meaning it’s difficult to maintain a thermal gradient across them, and they have been hard to assemble them into thermoelectric generators at low cost.”

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Simple Robots Can Work Together to Perform Complex Tasks

BOBbots can still accomplish a set of tasks, even without the aid of sensors, communication, and computation capabilities.

I love swarm bots of all types. Something so innocent about them. Researchers from Georgia Tech have developed a method that allows “simple” robots — those without sensors, onboard processing power, communication capabilities — to perform complex tasks by leveraging their physical characteristics, a trait they term “task embodiment.” Think of it like trying to control a child, which is hard enough, and then trying to control many of them at once, which is nearly impossible. The same can be said for trying to get swarms of robots to work collectively without complex programming and a ton of onboard sensors.

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Boeing Still Used Floppy Disks to Update the Software in Its 747s

Those of us who’ve been around and using technology for a while remember the era of floppy disks. You know, they look like “save” icons, but they were real pieces of plastic with magnetic media inside that stored a trivially small amount of data. You might not use floppies anymore, but some industries are stuck with the technology of yesteryear—for example, airlines. British Airways recently retired its fleet of 747s, giving us a chance to see how its floppy-based software update system works. It’s a real blast from the past. 

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This 3D Printer Extrudes Molten Glass to Form Parts

Lios Design, a team formed by MIT students, is well on its way to perfecting molten glass 3D printing.

The vast majority of 3D-printed objects are plastic. Most FFF (Fused-Filament Fabrication) 3D printers use thermoplastic filament and LCD/SLA (Stereolithography) 3D printers use photopolymer resin. Other materials, like ceramic, concrete, and metal, are somewhat common. We’ve even seen organic tissue and various foods being 3D-printed on occasion. But glass is difficult to print, because of the temperatures required and the physical properties of molten glass. That’s why it is impressive that Lios Design, a team formed by MIT students, is well on its way to perfecting molten glass 3D printing.

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3DPrinterOS Announces Sponsorship of OctoPrint to Ease 3D Printer Integration

Software developer 3D Control Systems, the parent company of 3DPrinterOS, has become a corporate sponsor of open source interface OctoPrint to help ease 3D printer integration processes.

Through its 3DPrinterOS platform, the company will help users and companies integrate Octoprint into their 3D printing workflows by means of its new 3D Printer Software Development Kit. By offering integration as a software service, the partners are hoping to save customers time and money on developing their own software to fully integrate OctoPrint with their systems.

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Should you buy a GaN Power Adapter? Or is it a scam? || Testing GaN FETs!

In this video we will be having a closer look at GaN FETs in order to find out whether they will improve power electronics products in the future. For that I got myself a commercial GaN power adapter which I will compare with a more traditional power adapter concerning their efficiency. Afterwards I will measure the resistance and switching speed of a proper GaN FET and finally use it in a buck converter circuit to demonstrate the difference to a normal MOSFET. Let’s get started!

How to work with a Real Time Operating System and is it any good? (FreeRTOS, ESP32)

Using a real operating system to simplify programming with the Arduino IDE. Is this possible and how? Let’s have a closer look!
Operating systems were invented to simplify our lives. But, because they need a lot of resources, they only run on reasonable computers like the Raspberry Pi or a PC. Right? Wrong. Nowadays, we also get operating systems running on our small MCUs. Particularly interesting in this respect is the ESP32 because it has enough power and memory to accommodate such an additional burden. And the best: It already runs a version of FreeRTOS with all our Arduino sketches, and it is easier than you think. Is this useful?