High Frequency Coils
C. A. Crowley describes the fun with high-voltage, high-frequency coils. I hope this will provide a sufficient inspiration for a modern version of this apparatus. It might make you feel like Tesla for a minute or two.
Amazing Electrical Displays With High-Frequency Coils (original article)
Vacuum Chiller
This article explains a simple chilling process using steam, vacuum and water; it is still the simplest and one of the environmentally friendliest methods of cooling.
Water Chilled In Vacuum Cools Air In Home (original article)
Robert W. Wood
This article describes the killer high frequency sound waves traveling through water or solids discovered by Johns Hopkins scientist Robert W. Wood. Wood joined forces with Alfred Lee Loomis, a famous Wall Street tycoon, and together they have done pioneering work in the study of ultrasound.
Can Inaudible Sound Kill? (original article)
Robert W. Wood (Wikipedia)
Alfred Lee Loomis (Wikipedia)
