Energy 101: Solar PV

Energy 101: Solar PV

MR. : All right, we all know that the sun’s energy creates heat and light. But it can also be converted to make electricity, and lots of it. One technology is called solar photovoltaics or PV for short. You’ve probably seen PV panels around for years, but recent advancements have greatly improved their efficiency and…

How to get 2000ºF Solar Power

How to get 2000ºF Solar Power

If a small magnifying glass will burn things with sunlight, how much power could you get from a lens as big as you? In this project we’re hacking open a rear projection TV, because that’s where you can find one of these amazing solar scorchers, for free. To get started, the first thing I’m gonna…

The Van Allen Belts Are Lethal, This Is How Astronauts Fly Through Them

The Van Allen Belts Are Lethal, This Is How Astronauts Fly Through Them

There’s an invisible, magnetic force field surrounding our planet, protecting us from harmful solar wind that could annihilate Earth. But, this protective blanket is also a swirling ring full of deadly radiation. And to leave Earth’s atmosphere, astronauts have to pass through it. The Van Allen belts are rings of energetically charged particles that have…