It's an electric motor that converts electric energy into Mechanical energy
Tin is Sn, atomic number 47 is Silver, Mass of sodium is 22.9 u
The sunlight of all colors passes through air, the blue part causes charged particles to oscillate faster than does the red part. More of the sunlight entering the atmosphere is blue than violet, however, and our eyes are somewhat more sensitive to blue light than to violet light, so the sky appears blue.
