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The pantograph of the train is constantly rubbing on the electric line of the railway. Why doesn’t the line become thinner?
The wire that rubs should be replaced every few days. The wire is made of hard drawn copper to reduce corrosion. The part of the pentograph that rubs against the wire is made of a material that is self-absorbing so it has less wear. Graphite grease is used as a lubricant to reduce friction.
The wire that rubs should be replaced every few days. The wire is made of hard drawn copper to reduce corrosion. The part of the pentograph that rubs against the wire is made of a material that is self-absorbing so it has less wear. Graphite grease is used as a lubricant to reduce friction.
See lessHow was the world’s first software created?
First various basic information about software development is presented. However, the first software was developed by computer programmers John Coble and Thomas Carte. They used a computer program written in assembly language, which ran on the UNIVAC computer in 1949. The program was written in machRead more
First various basic information about software development is presented. However, the first software was developed by computer programmers John Coble and Thomas Carte. They used a computer program written in assembly language, which ran on the UNIVAC computer in 1949. The program was written in machine language, which ran in a system test context.
See lessWhat is isotone?
Elements that have the same number of neutrons but different atomic numbers and mass numbers are called isotones. For example- The atomic number of silicon (Si) is 14. Mass number is 30. Then number of neutrons = 30-14 = 16. Atomic number of Phosphorus (P) – 15. Mass number is 31. Then number of neuRead more
Elements that have the same number of neutrons but different atomic numbers and mass numbers are called isotones.
For example-
See lessThe atomic number of silicon (Si) is 14. Mass number is 30. Then number of neutrons = 30-14 = 16.
Atomic number of Phosphorus (P) – 15. Mass number is 31. Then number of neutrons = 31-15 = 16.
Here their number of neutrons is equal.
Isotone can be remembered by the last letter “n” – the number of neutrons is equal.
What is isotope?
If the elements are the same but have different mass numbers, they are called isotopes of each other.
If the elements are the same but have different mass numbers, they are called isotopes of each other.
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