1080p (Full HD), likely sourced from a Blu-ray release (BDRip).
The episode focuses on geochemist Clair Patterson (voiced by Richard Gere in animated segments), who pioneered uranium-lead dating using zircon crystals. Cosmos (2014) S01E07 BDRip 1080p.mkv
It details Patterson's discovery that environmental lead was contaminating his samples, leading him to create the first ultra-pure "clean room". This discovery evolved into a decades-long battle against the petroleum industry to ban leaded gasoline , exposing it as a public health neurotoxin. 1080p (Full HD), likely sourced from a Blu-ray