Breaking News
If housing prices had simply followed income growth since 1970
According to INSEE data, France is now channeling 57.2% of its GDP through government spending
Power is moving eastwards and westerners are talking about how great it is...
Agricultural commodities are now breaking out decisively from nearly 20-year resistance.
Top Tech News
Researcher wins 1 bitcoin bounty for 'largest quantum attack' on underlying tech
Interceptor-Drone Arms-Race Emerges
A startup called Inversion has introduced Arc, a space-based vehicle...
Mining companies are using cosmic rays to find critical minerals
They regrew a severed nerve - by shortening a bone.
New Robot Ants Work Like Real Insects To Build And Dismantle On Their Own
Russian scientists 'are developing the world's first drug to delay ageing' months after
Sam Altman's World ID Expands Biometric Identity Checks
China Tests Directed Energy Beam That Recharges Drones Mid-Flight
Jurassic Park might arrive sooner than expected, just with Dinobots.
Discussion of 80 Gigapascal super material potential for energy and space
Nextbigfuture wrote this material which has been made in a chinese lab. The material is 20 times stronger than Kevlar.
The material would enable flywheel energy storage with jet engine or rocket like energy density.
Adam Crowl indicates super flywheels would be better than rocket fuel when oxygen is factored
For carbon nanotube material, with a density of about 1,800 kg/m3, and an operating maximum stress of 54 GPa, that means a specific energy density of 7.5 MJ/kg. For comparison a kilogram of natural gas represents about 50 MJ of chemical energy, if fully burned. However that comparison neglects the efficiency that the chemical energy can be turned into useful work. Flywheels convert their stored energy into electricity at very high efficiency – 95% or so. Running a gas powered generator turns maybe 20% of the gas's chemical energy into electrical energy.