[avandonk]

It is exceedingly simple! If we do not look we will never know!

If some alien tongue licked you on the face, many would complain! Why were we not warned!

If anyone finds it difficult to understand what highly educated experienced scientists are doing, then ask questions. Better still study science for about forty years after university and then come back to me.

I am old enough to remember when all radios had valves.

The fact all you young people have smart phones is due to a deep understanding of quantum mechanics first elucidated in last centuries early years. It took until the early 1940's when some esoteric work on the solid state physics of germanium crystals led to modern solid state devices such as transistors at Bell Labs.

CMOS was invented about the time I was nearly twenty!

Bert