Plastics, Their History and Use Page: 5
This thesis is part of the collection entitled: UNT Theses and Dissertations and was provided to UNT Digital Library by the UNT Libraries.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
that are not quick-frozen are also sealed in plastic bags
to prevent deterioration from exposure to bacteria in the
air or dehydration. One of the latest shopping con-
veniences is a plastic bag that will keep frozen vegetables
from melting for several hours.
Our communications system has been one of the greatest
causes for the expansion and advancement of civilization.
Moses carved the Ten Commandments on stones; the ancient
Chinese invented the printing press; Samuel Morse invented
the telegraph, Alexander Bell the telephone. Then, by leaps
and bounds, came the radio with all its devices that have
taxed the ingenuity of the scientists to keep up in find-w
ing materials and designs for this exacting and exciting
industry.
Upcoming Pages
Here’s what’s next.
Search Inside
This thesis can be searched. Note: Results may vary based on the legibility of text within the document.
Matching Search Results
View five pages within this thesis that match your search.Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Thesis.
Sealy, Emma L. Plastics, Their History and Use, thesis, August 1946; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc699452/m1/8/?q=%22History%22: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .