Nonfiction » Science & Nature » Physics / Electricity

Electricitate și magnetism - Electromagnetism fenomenologic
Price: $4.99 USD. Words: 68,040. Language: Romanian. Published: August 13, 2018. Categories: Nonfiction » Science & Nature » Physics / Electricity, Nonfiction » Science & Nature » Physics / Magnetism
O introducere în lumea electricității și a magnetismului, explicată în principal fenomenologic, cu ajutorul unui aparat matematic minimal, și cu exemple și aplicații din viața reală. O prezentare compactă, clară și precisă a unui domeniu care reprezintă o parte importantă a vieții noastre.
Anywhere Under The Sun: Building Your Own Solar Tracker
Price: $0.99 USD. Words: 4,420. Language: English. Published: April 4, 2019. Categories: Nonfiction » Science & Nature » Energy, Nonfiction » Science & Nature » Physics / Electricity
Portable solar tracking systems, at least those currently for sale, are heavy, not very portable and very expensive. The least expensive model is around $1200 and would not transport easily in an RV. I have created a system that can be built by anyone using readily available parts. It is lightweight, easily assembled and it can be built for around $350, solar panel not included.