Robin Hooke
To make a cup phone at home, you will need two paper cups and a long piece of string. Poke a small hole in the bottom of each cup. Thread the string through the holes and tie knots on the inside of the cups to secure it. Pull the string tight and talk into one cup while the other person listens through the other cup. Adjust the tension of the string to improve the sound quality.
Russell De Voe invented the modern suction cup in 1947. He patented the design and it has since become a popular household accessory for hanging items on smooth surfaces like glass or tile without the need for screws or nails.
The hypothesis of a string phone experiment is that sound can travel through a taut string between two cups. This suggests that the vibrations produced when speaking into one cup can be transmitted through the string and heard on the other cup, demonstrating the concept of sound transmission through a medium.
To make a paper cup phone, you will need two paper cups, a long piece of string, a sharp object to poke holes in the cups, and scissors. First, poke a small hole in the bottom of each cup. Next, thread the string through the holes in both cups, tying knots on the inside to secure it. Finally, hold one cup to your ear and have someone else speak into the other cup while holding it to their mouth. The vibrations will travel through the string, allowing you to communicate through the cups.
To make a phone using cups and string, you will need two cups and a long piece of string. Poke a small hole in the bottom of each cup and thread the string through the holes. Pull the string tight and talk into one cup while the other person listens through the other cup. This creates a simple communication device using the cups and string.
Robin Hooke
Robert hooke
the newest phone invented is the i phone 5
Elijah McCoy invented the lubricating cup on July 23, 1872.
It was made by James Guillow in 1943.
Mr Fredrick pip invented the football workd cup :)
President Obama invented the Obama phone.
the lubricating oil cup was invented by Elijah McCoy on July 23,1872.
(1843-1929)Elija McCoy, He invented the first oil cup for trains.
he invented the cell phone he invented the cell phone
Alexander Graham Bell invented the Graham Phone.
The telephone was invented by Alexander Bell and the cell phone was created by Martin Cooper