Solid state lubricant uses atomically thin sheets to achieve extremely low friction
Finding the right lubricant for the right purpose is a task that is often extremely important in industry. Not only to reduce ...
Calculating the energy requirements for using moon dust to create rocket fuel
An international team of engineers and space scientists has used a variety of assumptions, techniques, and math principles to ...
Science Daily15h
Fully 3D-printed electrospray engine
Researchers demonstrated the first fully 3D-printed, droplet-emitting electrospray engine. The low-cost device can be fabricated more quickly than traditional thrusters, potentially from on board a ...
The European hydrogen-powered plane that will attempt a non-stop flight around the world
The creators of Climate Impulse have unveiled the progress they have made on the design and building of the experimental, ...
Turning the Moon into a fuel depot will take a lot of power
On its own, 24 kWh doesn't seem like a lot of power. The problem is that we will need a lot of kilograms. The researchers ...
MarketWatch4d
These hedge-fund legends beat their peers. But a simple model beat them.
The top 20 hedge funds of all time outperformed their rivals last year. But they still trailed a simple 60/40 model that is far less expensive. Steven Goldstein is based in London and responsible ...