Tag «energy»

Energy Flow in Ecosystems

Energy Flow in Ecosystems

Hi. It’s Mr. Andersen and this is environmental science video 8. It is on energy flow in ecosystems. In the last video we talked about the importance of producers producing food that is consumed by consumers. But we did not talk about where that energy comes from. What is the major energy source on our …

Eric Giler demos wireless electricity

Eric Giler demos wireless electricity

Early visions of wireless power actually were thought of by Nikola Tesla basically about 100 years ago. The thought that you wouldn’t want to transfer electric power wirelessly, no one ever thought of that. They thought, “Who would use it if you didn’t?” And so, in fact, he actually set about doing a variety of …