>
Whistleblower EXPOSES How Israel Brainwashes American Christians!
Joe Rogan listens to "How to destroy America"
The Avalanche of Lies About Who KiIIed Charlie Kirk and Why Growing Even Bigger
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
One of the big secrets to polar bear fur's success lies in the fact that each hair is hollow. This characteristic minimizes their thermal conductivity, keeping them from drawing heat away from the animal's body. They're also very elastic, allowing them to stretch instead of breaking, plus they repel water.
A team at the University of Science and Technology of China set out to emulate these qualities, starting with tiny wires made of an element known as tellurium. After being coated in a layer of carbon, these nanowires were dissolved via a chemical process. What resulted was millions of hollow carbon tubes, not unlike polar bear hairs.
Those carbon tubes were subsequently wound together into a "spaghetti-like" arrangement, forming a small cube of insulating aerogel.