Who Invented the Parachute?
Who Invented the Parachute? Leonardo da Vinci (1452-1519) was thought until recently to have been the first to design a parachute. But drawings have now been found that...
Read MoreWho Invented the Parachute? Leonardo da Vinci (1452-1519) was thought until recently to have been the first to design a parachute. But drawings have now been found that...
Read MoreHow Do Sewing Machines Work? Sewing machines today often work by electricity. But there are over 2,000 different types, with attachments for turning hems, tucking,...
Read MoreHow Do Silkworms Make Their Silk? Silkworms are the caterpillars of the silk moth. They use the silk they make for their cocoons. Silkworms are fed leaves of the...
Read MoreHow Does a Silkworm Make Its Silk? Silk is a thin, but strong fiber that silkworms produce when they are making their cocoons. The silkworm makes its silk by oozing a...
Read MoreOne Diwali, my mother was coloring the rangoli in front of our house with paints. My brother and I decided to help her. My brother painted the steps and I was on the...
Read More