What are pygg jars commonly known as in the 21 century?

Because year 0-100 is first century; year 101 is in second century, and so on... 2010 is in 21st century

lordosis

fish eyes

Knobjockey MooseVon Moosen2 SwoopNo SwoopDisgraceful SwoopageYe whom lacks SwoopMoJuDisgraceSquawk

The area of RADAR and it's applications is very diverse and so are there capabilities and weaknesses, but if someone said to me a common radar I would think of small yacht radar using a Magnetron,...