105. Directions. Repeat [Exp. 51], but in place of the ebonite, use hot tissue-paper, hot brown paper, hot newspaper, or a hot silk handkerchief. Rub your hand vigorously over them. Do these become charged?
EXPERIMENTS 53–54. To study electrical attractions.
Apparatus. The ebonite sheet, E S (No. 26); flannel cloth, F C (No. 30); small pieces of dry tissue-paper, T P (No. 31); thread (No. 32).
106. Directions. (A) Thoroughly electrify E S as before, then lift and hold it in the air. ([Fig. 28].)
(B) See what the paper and thread will do when held loosely near E S.
107. Discussion. [Exp. 53] shows that an electrified body attracts neutral ones. This much was known about electricity over 2,000 years ago. They didn't have ebonite then, but some of the educated men of Greece knew that amber would attract light bodies after being rubbed. The Greek word for amber is elektron, and from this has been made the word electricity.
108. Directions. Charge a sheet of hot paper by friction; lift it, by its opposite ends, and lower it over small pieces of tissue-paper placed on the table. What happens to the little pieces?