Optimized Nuclear Thermal Rocket for 45 Days to Mars
A novel Wave Rotor (WR) topping cycle is proposed that promises to deliver similar thrust as NERVA class NTP propulsion, but with Isp in the 1400-2000 second range. Coupled with an NEP cycle, the duty cycle Isp can further be increased (1800-4000 sec
DIY Rainwater Filter System
DIY biological rainwater drinking water filter. This filter is made very easily, you need gravel, sand, and charcoal.
Rain Roof - Rainwater Harvesting Project - How To
Building a Rain Roof as another option to harvest rainwater for home, garden or livestock use. Specifically this is set up for my rainwater garden area but could be used for just about anything.
This project started out originally as a roofing te
How Concrete Homes Are Built With A 3D Printer | Insider Art
Aiman Hussein is a concrete-3D-printer operator who works for Alquist. The company uses 3D-printing technology to build homes and lower the cost of housing and infrastructure in economically distressed and underserved communities. He'll walk us throu
Hydrogen Fuel Is Gaining Traction With Truckers
"Outside of Nikola, you're just not seeing large commercial development in North America." Nikola is the front-runner so far in the hydrogen-truck field, but traditional manufacturers including Kenworth, Hyundai Motor and Volvo Trucks are also
Laser Nuclear Fusion
The NT Times had a recent article discussing laser nuclear fusion. Nextbigfuture has spoken with all of the nuclear fusion companies listed in the NY Times article as they all attended the 2023 International Conference on Inertial Fusion Sciences and
Supercritical CO2 pilot aims to make steam turbines obsolete
Steam turbines still produce most of the world's power, but supercritical carbon dioxide promises to be much cheaper, and 10% more efficient as a medium than water, using 10X smaller turbines. A US$155-million pilot plant is now complete in San Anton
The Do's and Don'ts – Foods Not To Use Oxygen Absorbers With
Oxygen absorbers are game-changers in the world of food storage. They're like little food preservation superheroes, swooping in to extend the shelf life of various edibles and maintain their freshness. However, much like any superhero, they too hav
Mastering Sweet Potatoes: A Survival Crop Goldmine
Learn to master growing sweet potatoes. I'll teach you to harvest, propagate, and cure sweet potatoes using no dig organic methods. Sweet potatoes are an amazing survival crop for homesteading to grow for a lot of calories and nutrition with minimal