Scientists 3D Print Gunpowder Substitute, Achieve 420M/S Bullet Velocity

Researchers from the Xi’an Modern Chemistry Research Institute in China have 3D printed a functional gun propellant using SLA technology. The gunpowder-esque substance is a carefully constructed blend of photopolymer resin, RDX (a high explosive), and other reactive additives. Initial gun testing of the 3D printed propellant has garnered some promising results, as the scientists managed to achieve a more-than-lethal muzzle velocity of 420m/s. This, of course, depends on your definition of ‘promising’.

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Nvidia RTX 3080 Ti could require upgraders to rip out most of their PC

New rumors are doing the rounds that suggest the Nvidia RTX 3080 Ti, and other upcoming Ampere graphics cards, could require a new 12-pin PCIe connector to provide the requisite power – and if true this could prove very frustrating for potential upgraders.

While current Nvidia graphics cards usually use eight-pin connectors from the PSU (power supply unit) to run, but a new technical illustration suggests that Nvidia is looking at using a new 12-pin PCIe power connector, measuring around 19 x 14 x 8.35mm.

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Emulate ZX Spectrum on emulated Commodore 64 on emulated DOS on emulated Windows on Linux

An emulator is a program that allows one system (eg. Windows) to run programs built for another system (eg. ZX Spectrum). It is mainly used to play old 8-bit games on today’s PCs. In other words, a complete waste of time.

What we will do is emulate Windows on a Linux system. Then we will run a DOS emulator under Windows. Then we will run a Commodore 64 emulator in this emulated DOS environment. Finally, we will run a ZX Spectrum emulator on the emulated Commodore machine.

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Light Indicator For Indoor Parking Using an Infrared Sensor and Arduino Board

In our previous DIY project, we have learned about the car parking counter prototype, which will tell us whether the premises or buildings parking lots are full or not. Such a system would be more attractive and practical if the driver could continue to cover the vacant parking lot immediately upon entering a premise or building providing the parking lot.

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Windows 10 On The Pi4 Just Got Better! Easy Install, More Ram, USB Fix

Windows 10 for the raspberry pi 4 has gotten so much better recently, It now supports the USB ports and 3 GB of Ram on the Pi4 thanks to the developers over at The Windows On The Raspberry Pi Discord server.

In this video I test out a couple steam games, test youtube, and the Windows store then I show you how to easily install and set up Windows 10 on your Raspberry Pi4!

Diodes Explained – Diode – Working principle PN junction | forward and reverse biasing | IV curve

A diode is a two-terminal electronic component that conducts current primarily in one direction , it has low (ideally zero) resistance in one direction, and high (ideally infinite) resistance in the other. A semiconductor diode, the most commonly used type today, is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. Semiconductor diodes were the first semiconductor electronic devices.

Arduino DUE NES Emulator!

An Overclocked Arduino DUE is quite able to emulate NES games, the emulator is based on Nofrendo Remix, contains memory hacks, because Arduino DUE has a hardware limit of 96 KB RAM. Nothing is guaranteed. NES ROM size limit is ~ 49168 bytes (It is able to run Super Mario Bros.) Used Libraries: marekburiak-ILI9341_due, greiman-SdFat, SchedulerARMAVR…

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