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Where and when were the bifocals invented?
ben Franklin invented his bifocals at his house in philly and made them on March 23.1784
Who inspired Benjamin Franklin to invent bifocals?
Benjamin Franklin had very bad vision and could not read very well so he needed something so that he could see better that why he made bifocals
How were bifocals made?
they were made out of metal
How made bifocals?
they were made out of metal
Was the inventions that Benjamin Franklin made?
Benjamin Franklin invented bifocals,urinary catheter,a better kind of ship,lightning rod,Franklin stove,odometer.and The Long Arm. Well they are true and real he was a great inventor and discovered a lot of things.
Who invented the bifocals and the glass armonca?
Bifocals were invented by Benjamin Franklin, who created them to help him see both near and far without changing glasses. The glass armonica, an instrument made of glass bowls that produce musical tones when rubbed, was also invented by Franklin in 1761. Both inventions reflect his innovative spirit and contributions to science and music.
Benjamin Franklin did what?
Many things. He made the first public library, fire company, hospital, bifocals, lightning rod, odometer, fireplace, battery, and much more.
Who was president when the Gladsden purchase was made?
President Franklin Pierce
When were bifocals made and how long they were made?
1783 and was made until now
What made Ben Franklin famous?
He became famous after his experience in a lightning storm trying to work out what electricityis.
undefined what are Benjamin Franklin's accomplishments?
He did the following Invented the lightning rod He made the first political cartoon He created bifocals He was the first US Post Master General Hope this helps
What are some of Benjamin Franklin inventions?
he invented the bifocals Franklin stove glass harmonicaANSWERFranklin was a prodigious inventor. Among his many creations were the lightning rod, the glass harmonica, the Franklin stove, bifocal glasses, and the flexible urinary catheter. Franklin never patented his inventions; in his autobiography he wrote, "A's we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously."Above retrieved from WikipediaViper1
