1 year apperntice 3 years joneryman then masters so 4 years
No one can possibly post "all" questions and answers about electricity. That would take books. But you can post a specific question and we can try to answer it.
Depends on the type of lamp.Mercury vaporHigh Pressure SodiumLow Pressure Sodiumetc.
Electricity will always take the path of least resistance, usually the case is though a ground, if the wire becomes uninsulated you will see why it is very important to have equipment grounded (otherwise you could become the path of least resistance if you touch it)
3 million years
35 or 40 years
fifth year
Many millions of years.
In some regards, the computer is still being invented.
It was created officially in Canada by Joseph Bombardier, it took him many years of tinkering with cars and sleds to invent the snowmobile.
A couple years.
it took him 6 years to invent the telephone
A few years.
about a 10 years
It took seven years to invent a First motorbike. Motorcycle megastore
It took seven years to invent a First motorbike. Motorcycle megastore
it took 18 days to invent antibiotics