Energy
- 401
- Technology For Life
- Covers stories related to development and renewable energy focused on Spain and the United States. Also contains statistics and related links.
- 402
- Ancient Inventions
- Describes the history and operation of the Baghdad Battery - (about 250 Before Common Era).
- 404
- Battery Education
- Discusses battery technology, uses, and technical elements, with a focus on iPods.
- 406
- Battery Technology Comparison
- Rechargeable. Compares AA cells, a few larger batteries, and supercapacitors.
- 407
- Battery University
- Analyzer and charger maker offers web version of book about batteries and how to charge them.
- 408
- Choosing and Using Nickel-Metal-Hydride (NiMH) Rechargeable Batteries
- Provides brief history of rechargeable batteries, characteristics, how to choose and store them, recharge methods, and memory effect information.
- 409
- EuroPositron
- Start-up preparing to make aluminum batteries for electric vehicles. "Techniques Compared" graphs characters of different battery types.
- 411
- Hydrogen as a Secondary Fuel
- Large color photograph of the Hindenberg burning, with lecture notes on hydrogen for fuel cells. Large print, with an e-mail contact.
- 413
- Premium Power Corporation
- Energy and Power Storage Solutions, makes flow batteries for storage and power quality assurance.
- 414
- Telepower Australia
- Outside SEI in Japan, Telepower Australia has more experience and technical know-how with VRB than anyone else. Link to bibliography.
- 416
- Why Do Large Battery Packs Fail Early?
- Resources for Design. Explains problems in batteries with many cells.
- 417
- Capacitors: What Good Are They?
- Short description of a fundamental capacitor, and units used to measure capacitance. Illustrations of capacitors in electronic circuits, with animation.
- 418
- Supercapacitor
- Wikipedia entry includes picture, history, applications, Ragone plot, diagram, links, and current state.