Did you Know? Benjamin Franklin invented bifocal lenses
You may know Benjamin Franklin as one of the Founding Fathers of the United States of America and the man who performed the lightning rod experiment, but did you know he also invented bifocal lenses? He was both far-sighted and near-sighted, and he was sick of constantly changing his glasses. As a result, he devised the idea of combining both lenses into a single frame.
Related Facts
Crabs use the sounds of their pincers and claws to communicate.
California is the United States' broccoli capital.
The gorgeous sea turtles may be found in nearly every ocean basin on the planet.
Afrikaans was first taught in Muslim schools and was written in Arabic script.
Did you Know? Lebanon is home to many great roman ruins
Every year, more than 14 billion pencils are produced worldwide.
Tünel is the world's second-oldest subway system.
Did the French Create Film?
Who is the Actor or Actress with the most Oscars
Bhutan only opened to tourism in the 1970s.
Asia’s oldest amphitheater “Ranghar, Sibsagar”
What is the relation between Shantiniketan Link and Indian Constitution?
The World's Largest Pre-Raphaelite Painting Collection
How are the themes determined?
Beneficial for Diabetics
The secret to success is rescue inhalers.
What Is the Flavor of Butterscotch?
Roses have hundreds of scent molecules combining notes of different aromas
Few People Still Exist in the World Who Are Capable of Blowing Glass
Some pigeons have served in the military.
What Is the Distinction Between Caramel and Butterscotch?
Did you know the cost of an Oscar Award?
Golf was anything but relaxing in Walt Disney's opinion.
The bite of a centipede is poisonous
Did you Know? Greece is the biggest producer of Olives