How do tornadoes form? - James Spann

Tornadoes are the most violent storms on Earth, with wind velocities that can exceed 200 miles per hour. How do these terrifying cyclones form? Meteorologist James Spann sheds light on the lifespan of tornadoes as they go from supercell thunderstorms to terrible twisters before eventually dissolving back into thin air.

 Lesson by James Spann, animation by Província Studio.

 

What Is The Speed of Dark?

Shadows moving faster than light?

 

How Magnets Produce Electricity 1954 US Navy Electromagnetism Prime

How a magnetic field effects a single atom, a group of atoms and a wire in a closed circuit with a meter.

 US Navy training film MN-8016b

 

The Origins of Mass

The Higgs boson was discovered in July of 2012 and is generally understood to be the origin of mass. While those statements are true, they are incomplete. It turns out that the Higgs boson is responsible for only about 2% of the mass of ordinary matter. In this dramatic new video, Fermilab’s Dr. Don Lincoln tells us the rest of the story.

 

Why aren't we only using solar power? - Alexandros George Charalambides

Solar power is cheaper and more sustainable than our current coal-fueled power plants, so why haven't we made the switch? The real culprits here are the clouds, which make solar power difficult to control. Alexandros George Charalambides explains how solar towers and panels create electricity and how scientists are trying to create a system that can function even under cloud cover.

 Lesson by Alexandros George Charalambides, animation by Ace & Son Moving Picture Co., LLC.