"Nothing about him speaks to a modern gay man, " Pyron adds.

BBC: What Liberace reveals about the march of gay rights

Pyron Solar's 20-kilowatt test installation in San DiegoMost concentrating solar installations also swivel to track the sun during the day, which is far more effective than a fixed array.

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Many younger activists, fighting to challenge stereotypes about their sexual orientation, resented the way he constructed a neutered, effeminate persona designed not to frighten or challenge the mainstream, argues Pyron.

BBC: What Liberace reveals about the march of gay rights