World Changes Due to the Telephone. Within 50 years of its invention, the telephone had become an indispensable tool in the United States. In the late 19th century, people raved about the telephone's positive aspects and ranted about what they anticipated would be negatives.
When you hold the ice cube for a very long time, the enzymes deactivate. Blood circulation stops. The brain initiates impulses for blood circulation. The local nerves therefore get irritated and produce a sensation of heat.
This usually happens if you touch a surface that has germs on it -- a computer keyboard, doorknob, or spoon, for example -- and then touch your nose or mouth. You can also catch it if you're near someone who is sick and sneezes into the air. A cold begins when a virus attaches to the lining of your nose or throat.