"What is that thing?" the ultra orthodox Woods joked when he first saw the new method last week.

Greece became the first Christian orthodox country to legalize same sex marriage and Thailand passed a monumental marriage equality bill.

The report said many home-educated children received a good education, but they were still part of a significant number who have "been opted out of more orthodox patterns of education".

But its potential to suddenly plummet in value serves as a reminder that it is not like orthodox currencies - and investors have no protection or recourse if they lose money on Bitcoin investments.

The cavers experienced daily physical exertion, isolation and spartan hygiene and sleeping quarters -- a far cry from the strict parameters involved in orthodox lab work.