Breaking News
The Biden Hawk Behind Trump's Iran War
Last-minute changes to Trump's 'big, beautiful bill' stun clean energy industry (and Elo
"Seizing The Means Of Production" Is "The End Goal," Says Socialist NYC Mayor Ca
What Is Birthright Citizenship?
Top Tech News
xAI Grok 3.5 Renamed Grok 4 and Has Specialized Coding Model
AI goes full HAL: Blackmail, espionage, and murder to avoid shutdown
BREAKING UPDATE Neuralink and Optimus
1900 Scientists Say 'Climate Change Not Caused By CO2' – The Real Environment Movement...
He 3D Printed a Whole House
New molecule could create stamp-sized drives with 100x more storage
DARPA fast tracks flight tests for new military drones
ChatGPT May Be Eroding Critical Thinking Skills, According to a New MIT Study
How China Won the Thorium Nuclear Energy Race
Sunlight-Powered Catalyst Supercharges Green Hydrogen Production by 800%
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.