victorian inventions by saaram and haidar

1.the lightbulb made in 1879 made by thomas alva lasted 40 hours.
2.the camera made in 1833 made by william henry fox tailbot.he had to soak negatives in oil feor them to become photographs.
3.the telephone:made by alexander made in 1876.The first words that came through a phone was”come to me”.

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