Thales of Miletus, a Greek philosopher, discovered that rubbing amber with silk created an electric charge in the amber which caused objects to be attracted to it. If rubbed enough, it created a spark, much like we receive when we walk on carpet and touch a doorknob and see, hear and feel the spark.
It comes from the Greek word "electron." However, to the Greeks that word didn't mean what it does to us; it meant the material we call amber. It's called that because one of the first noticed electrical phenomena was that if you rubbed a piece of amber with a cloth you could build up a static charge and make a small spark.
compound word for cloth
in medieval times a standard bolt of cloth was 40 cloth-yards (37 inches) in length
What us a word to mack cloth to make a compound word
One sq yd of cloth has 1296 square inches in it
it created an electrical charge
Thales of Miletus, an ancient Greek philosopher, is often credited with discovering static electricity around 600 BC. Thales observed that when amber was rubbed with fur, it gained the ability to attract lightweight objects like feathers.
when amber is rubbed with silk cloth +ve charge comes on silk cloth and -ve on amber due to interaction between their molecules, so is that when we comb our hairs , then -ve charge comes on comb and +ve on hairs,so when we bring silk cloth near the comb they attract each other due to 'ving opposite charges
Thales discovered static electricity by rubbing a peice of amber against a silk cloth.
Friction strips electrons so the rubbed amber would take on a negative charge. Actually, friction causes charges to shift. Charges are indeed stripped from something, but they are collected up by something else. Amber does, indeed, become negatively charged by rubbing it with, say, fur. The phenomon is called triboelectric effect. And a link is provided.
The Greeks first wrote about static electricity generation. A silk cloth rubbed on an amber rod.
over 2500 years ago when they rubbed amber with cloth it attracted small objects
the sand would stand up
The cloth is left with a negative charge when rubbed against perspex due to transfer of electrons from the perspex to the cloth.
The ebonite rod acquires a negative charge when rubbed with woolen cloth because electrons are transferred from the woolen cloth to the ebonite rod.
The balloon will have static electricity after being rubbed on the woolen cloth. This results from the transfer of electrons between the balloon and the cloth, causing the balloon to become negatively charged.
The glass rod loses electrons when rubbed with a silk cloth. This leaves the glass rod positively charged as it loses negative electrons to the silk cloth through friction.