Introduction

Solar Cells Lecture 1: Introduction to Photovoltaics

This introduction to solar cells covers the basics of PN junctions, optical absorption, and IV characteristics. Performance metrics such as efficiency, short-circuit current, fill factor, and open-circuit voltage are discussed. Key technology options and economic considers are briefly introduced. on nanHUB: http://nanohub.org/resources/11875 Video Rating: / 5 solar cellsกับการใช้งาน แม้วัตต์ไม่ถึงแต่แรงดัน(โวลท์)ถึง ก็สามารถปรับเฮิร์ซที่อินเวอร์เตอร์ ใช้งานเกินกำลังวัตต์ที่คำนวณไว้ได้ รายละเอียดดังในคลิปที่ช่างไก่ได้อธิบายไว้

Ecology Introduction

Population, community and ecosystem Video Rating: / 5 Permaculture designer Andrew Faust of Center for Bioregional Living gives us an inspiring and heady narrative about the evolution of all life and human consciousness on Mother Earth. This is a brilliant condensation of the core of the scientific worldview with the metaphysical implications highlighted along the … Read more

Earth System Science 1: Introduction to Earth System Science

Dramatic falls into bottomless pits are largely the stuff of fantasy, but here’s a thought experiment: How long would it take you to fall through the Earth if a tunnel went from one side to the other? Learn more at HowStuffWorks: http://science.howstuffworks.com/environmental/earth/geophysics/question373.htm Subscribe | http://bit.ly/stbym-sub Homepage | http://bit.ly/stbym-hsw-home Listen to us | http://bit.ly/stbym-itunes Like us … Read more

Solar Energy: Introduction to Photovoltaic Cells – NCSSM Renewable Energy Seminar

Join Dahl Winters, from the Research Triangle Institute, as she explains the fundamentals of solar photovoltaics and gives a hands-on demonstration on how to build a solar iPad charger. NCSSM, a publicly funded high school in North Carolina, provides exciting, high-level STEM learning opportunities. If you appreciate this video, please consider making a tax-deductible donation … Read more

Introduction to Pollution | Environmental Science | EVS | LetsTute

Check out our video on “Introduction to Pollution” This video covers all about “Pollution” – Introduction to Pollution – Definition of pollution – Types of pollution – Consequences of Pollution Subscribe Us For More Updates: http://bit.ly/1Q85cNP Website : https://www.letstute.com Like us, Follow us, get the latest updates on our social pages. Like Us On Facebook … Read more