english: And I went to see one of these experiments, and this is actually -- you can barely see it, and the reason for that is it's entirely dark in there -- this is a cavern that was left behind by the miners who left this mine in 1960.
non_english: Ve ben bu deneylerden birini gözlemlemeye gittim, ve bunu aslında -- görmek zordu, ve bunun sebebi, içerisi tamamen karanlık. Bu mağara boşluğu madenciler tarafindan 1960 yılında terkedilmişdi.