1985
Taylor Behrens
The calculator was invented to calculate large mathematical problems.AnswerThe calculator was invented to calculate large mathematical problems.
Alexander Calder (1898-1976), "mobile" artist, is the inspiration behind the baby mobile. He created large art pieces that were motorized. His exhibitions were called "mobile" art. Though he didn't make baby mobiles he is the artist responsible for its idea.
The telescope was invented first in 1608.
as large as a room and some bigger, only the rich could afford them
Answer:Textile machines were too large for houses.Textile machines were very expensive.
The first microwave was invented by Percy Spencer after world war II it was called Radarange. But the size is not for home use because it is too large and expensive.
The first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier.
Arthur Leslie Large invented the first electric kettle.
abacus
The technology was invented in the 1920's which was in essence a very large walkie-talkie that could transmit 100's of miles. The inventor was Reginald Fessenden. The technology became handheld in 1946 thanks to engineer's from Bell Labs with ATT being the first carrier.
A trebuchet is defined as a machine used in medieval siege warfare for hurling large stones or other missiles. The first trebuchet was invented by the Chinese in the 4th century BC.