>
2025-09-17 -- Ernest Hancock interviews James Corbett (Corbett Report) MP3&4
Whistleblower EXPOSES How Israel Brainwashes American Christians!
Joe Rogan listens to "How to destroy America"
This "Printed" House Is Stronger Than You Think
Top Developers Increasingly Warn That AI Coding Produces Flaws And Risks
We finally integrated the tiny brains with computers and AI
Stylish Prefab Home Can Be 'Dropped' into Flooded Areas or Anywhere Housing is Needed
Energy Secretary Expects Fusion to Power the World in 8-15 Years
ORNL tackles control challenges of nuclear rocket engines
Tesla Megapack Keynote LIVE - TESLA is Making Transformers !!
Methylene chloride (CH2Cl?) and acetone (C?H?O) create a powerful paint remover...
Engineer Builds His Own X-Ray After Hospital Charges Him $69K
Researchers create 2D nanomaterials with up to nine metals for extreme conditions
In 2015, Japan built the world's largest-class superconducting flywheel power storage system with a superconducting magnetic bearings. The completed system is the world's largest-class flywheel power storage system using a superconducting magnetic bearing. It has 300-kW output capability and 100-kWh storage capacity, and contains a CFRP (carbon-fiber-reinforced-plastic) flywheel. This flywheel is 2 meters in diameter and weighs 4 tons, and is rotated with a superconducting magnetic bearing at a maximum speed of 6,000 RPM. This is the world's first superconducting magnetic bearing which uses superconducting material both for its rotor and bearing, and is capable of supporting heavy weight, although it is a compact-sized system.
The flywheel is made by stacking nine layers of CFRP rotors with a 2-meter outer diameter, 1.4-meter inner diameter and 10-centimeter thickness. With this method, flywheels of different storage capacities can be made by changing the number of layers.
It had grid-connection tests with a megawatt-class solar power plant at Komekurayama in Yamanashi Prefecture.