General Science Questions

A daisy-wheel printer works on the same principle as a ball-head typewriter. Daisy wheel printer is a type of impact printer invented in 1969.

The daisy wheel is a disk made of plastic or metal on which characters stand out in relief along the outer edge. To print a character, the printer rotates the disk until the desired letter is facing the paper.

Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen in the year 1774, but Priestly is usually given credit for the discovery.

When you can't hear it is called as Deaf.

The plants which flower only once in their lifetime are called Monocarpic Plants.

Most producers use sun light for making their energy in the process of photosynthesis. The energy they prepared is sugar and glucose.