![]() It is nearly impossible to find a superlative that isn’t appropriate in describing Benjamin Franklin (1706-1790). One of these is the description of his famous kite flying experiment, published only months after Franklin himself is reputed to have performed it! In this post I’ll give an account of Franklin’s work preceding his kite-flying excursion, the full text of the letter itself, and the impact it had on electrical research. It gets even better, though: before being a Fellow, Franklin sent a number of letters describing his experiments to his friend and colleague Peter Collinson, himself a Fellow. As a Fellow, he would natural be expected to publish in the Philosophical Transactions of the Royal Society, and I quickly confirmed that he had in fact published quite a bit on electricity in the Transactions. I never thought to look any deeper into this groundbreaking achievement, however, until I learned last week that Franklin had been made a Fellow of the Royal Society because of his electrical work. That’s about the extent of the information I learned about Franklin’s experiment when I was a kid in grade school. The key drew off electricity from the thunderclouds, and Franklin could feel a shock from the key, thus demonstrating that it had collected static electricity. In order to show that lightning is a form of electricity, he flew a kite in a thunderstorm with a key attached. Back in 1752, Benjamin Franklin performed an epic - and incredibly dangerous - experiment. silk handkerchief, wooden sticks, a string, a sharp piece of metal, a key, a silk ribbon ,a condenser, a small shed, a thunderstorm with lightning The electricity stored in the condenser can be used to do other experiments, which proves that lightning and electricity are the same. (2) (1) (3) (4)Ĭonsolidation Silk handkerchief condenser wooden sticks silk ribbon Kite experiment kite shed key string a sharp piece of metal bad weatherįranklin’s Famous Kite Experiment to show that lightning and electricity are the same. The pictures below show how Franklin did his experiment. Because if something went wrong, he could be killed by the lightning. Do you think Franklin’s experiment dangerous ? Explain. Why is it better to make the kite of silk than of paper ? A silk kite will last longer in bad weather than a paper one. ![]() Why did Benjamin Franklin do this experiment with the kite ? He wanted to prove that electricity and lightning are the same. Was the kite experiment done by Franklin Why is it better to make the kite of silk than of paper ? 4. Why did Benjamin Franklin do this experiment with the kite ? 3. Was the kite experiment done by Franklin in June 1752 successful ? 2. Post-reading T ( ) F ( ) F ( ) T ( ) F ( ) The key tied to the string was put into the door to stop the kite from flying away. A condenser was used in the experiment to store electricity. Franklin made the kite of silk because wet silk does not conduct electricity. Franklin was helped by a friend to do the experiment. In 1752 scientists already knew what electricity is.a condenser to store electricity to keep himself and his tools dry so that he himself would not be hit by the lightning a shedįranklin’s Famous Kite Experiment To build the frame of the kite by making a small cross wooden sticks a string to control the kite by tying a long string to the cross a sharp piece of metal to pull the electricity from the thundercloud to stop the kite from flying away without touching the charged string a silk ribbon a silk kite a key to direct electricity forwards the condenser bad weather No bad weather,no lightning. What are needed to do Franklin’s kite experiment ? Silk Kite Kite experiment Bad Weather Key Condenser Shedįranklin’s Famous Kite Experiment to attract lightning, to last longer in bad weather. What’s Franklin’s kite for the experiment made of ? silk handker-chief wooden sticks silk ribbon kite string key sharp metal What’s a kite usually made of ? paper wooden sticks kite string Can they be relative ? Franklin did a kite experiment to prove that electricity and lightning are the same. Franklin’s Famous Kite Experiment 舒心英语 世界编辑įranklin Lightning Kite These three are different things.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |