A guide to the scientific knowledge of things familiar / by the Rev. Dr. Brewer.

  • E. Cobham Brewer
Date:
[1858]
Catalogue details

Licence: Public Domain Mark

Credit: A guide to the scientific knowledge of things familiar / by the Rev. Dr. Brewer. Source: Wellcome Collection.

    16/512 page 4
    tricity, so there are two kinds of light- ning also. Q. What are the tioo hinds o/'electeicity called ? A. The Vitreous and Resinous;— sometimes the Positive and Negative. Q. What causes the discharge of an elec- TEIO CLOUD ? A. One kind of electricity rushing from a cloud, to unite itself with the other kind, either in another cloud, or in the earth. Q. What taJces place when the two hinds of electricity meet ? A. They neutralize each other. Q. What is a thundeii-stobm ? A. The disturbance caused in the air, when successive discharges of accu- mulated electricity take place. Q. What are the sources of the electricity which accumulates in the clouds ? A. 1st—Evaporation from the earth's surface;
    digitised image 1
    digitised image 2
    digitised image 3