Let’s Stop Pollution!

Invention: Light Bulb 1. The countries that the light bulb was developed were England and the U.S.A. 2. The light bulb works by the emission of light coursed by heating the filament, or incandescence. 3. The development of the light bulb involved inventors such as Humphry Davy, Warren de la Rue, William Straite, Joseph Saw, and the most known Thomas Alva Edison. 4. The final design was released on November 4th of 1879 in the U.S. 5. During its development it had a lot of changes in its model and components. Firs, they used voltaic piles and charcoal electrodes. Secondly, they adapt the platinum filaments. Thirdly, they used a clockwork mechanism for improving longevity. Finally, they used carbonized paper filaments. Inventor: Thomas Alva Edison 1. Thomas Alva Edison was born February 11, 1847 in Milan, Ohio. 2. Thomas Edison died on October 18, 1931 in West Orange, New Jersey. 3. In 1954, at the age of seven, Edison attended school for a short period o...

1. The compass is used for navigation 2. The compass show the cardinal points ( north, south, east and west ) 3. Afther compass was invented, it was used for divination and geomancy for centuries 4. Magnetic compass does not point to a geographic pole, but to the magnetic pole 5. The compass was invented more than 2.000 years ago 6. It say to be invented during the Han Dynasty of China between 300 and 200 BC 7. The exact date were the compass was invented is unknown 8. Flavio gioja reinvented the compass 9. Flavio gioja fue un inventor italiano que vivio entre los siglos XIII y XIV 10. Hay un crater en la luna llamado como el Gioja

Light Bulb Who? The famous american inventor Thomas Edison is credited with the invention of the light bulb, though he wasn’t the only one to contribute to the development, Joseph Swan and Hiram Maxim contribute for the materials to create this invention. What? The light bulb is a glass bulb inserted into a lamp or a socket in a ceiling, which provides an electric current through a fillament or a pocket of inert gas. When? The development of the light bulb started in 1878 and the original desgin came out in October 4th in 1879. Where? Edison and his team of researchers in Edison's laboratory in Menlo Park, N.J. How? Thomas Alva Edison experimented with thousands of different filaments to find the right materials to shine well and be durable. In 1879, Edison discovered that a carbon filament in a light bulb without oxygen glowed but did not burn for 40 hours. Edison finally produced a light bulb that could...