Documents

6 documents

• 

  Energy Is Never Created. So Where Does It Go?

  Energy is the one quantity the universe refuses to lose. Following it from a stretched spring to a warm room is the whole game — and it leads straight into entropy.

  • Thermodynamics
• 

  Why Ice Is Slippery (And Still Argued About)

  You can walk on stone, glass, dry metal. Freeze a sheet of water and suddenly your feet won't hold. What makes this one solid so treacherous — and why do scientists still argue about it?

  • Chemistry
  • Thermodynamics
• 

  Emmy Noether and the Reason Energy Is Conserved

  Why is energy conserved? Not luck, not a measured habit of the world. A mathematician barred from a paid job proved it's because the universe has no favourite moment.

  • Thermodynamics
  • Philosophy
• 

  Why Metal Feels Colder Than Wood at the Same Temperature

  A steel spoon and a wooden one, side by side all day at the same temperature — yet the metal feels colder. Your hand isn't a thermometer. It's measuring something else entirely.

  • Thermodynamics
• 

  Chasing Absolute Zero

  Absolute zero is where motion would stop — and the third law of thermodynamics says you can approach it forever without reaching it. The strange physics of the very, very cold.

  • Thermodynamics
  • Quantum Physics
• 

  Solid, Liquid, Gas — and the States Beyond

  Three states of matter is what school teaches. There are more — and the single most common state in the universe is one you were probably never told about.

  • Thermodynamics
  • Quantum Physics